


Professor Demchick's Patent Services
Paul H. Demchick, United States Registered Patent Agent
(United States Patent and Trademark Office Registration 52,808)
PATENTS RELATED TO BACILLUS THURINGIENSIS Although Dr. Demchick also represents patent seekers with non-microbiological inventions, his doctorate is in microbiology. Microbiology has been the primary focus of his research and teaching. He especially loves dealing with patent searches and applications for involving microbiology.
Dr. Demchick is a scientist with a quarter of a century of research experience in academic, industrial and governmental settings.
If you are considering patent protection for an invention, Dr. Demchick will be glad to discuss the matter with you. There is no charge for an initial discussion.
The following sampling is to give you some sense of the types of Bacillus thuringiensis related inventions which have received United States patent protection. The patent list is not exhaustive and is certainly not a substitute for a proper patent search . It should be noted that only U.S. Patents are included.
It should be noted that spelling, form and typographical errors in the original patents are preserved here.
Bacillus thuringiensis isolate active against lepidopteran pests, and genes encoding novel lepidopteran-active toxins (United States Patent 7,138,568)
Pectinophora gossypiella (pink bollworm) Bacillus thuringiensis toxin receptor BT-R.sub.2 (United States Patent 7,094,554)
Bacillus thuringiensis isolates active against weevils (United States Patent 7,091,177)
Lepidopteran-active Bacillus thuringiensis delta-endotoxin polynucleotides, compositions, and methods of use (United States Patent 7,078,509)
Polynucleotide encoding a gene conferring resistance to Bacillus thuringiensis toxins (United States Patent 7,029,851)
Hybrid Bacillus thuringiensis .delta.-endotoxins with novel broad-spectrum insecticidal activity (United States Patent 6,962,705)
Coleopteran toxin proteins of bacillus thuringiensis (United States Patent 6,953,835)
Bacillus thuringiensis cryET33 and cryET34 compositions and uses therefor (United States Patent 6,949,626)
Bacillus thuringiensis toxins with improved activity (United States Patent 6,831,062)
Formicidae (ant) control using Bacillus thuringiensis toxin (United States Patent 6,797,490)
Genes encoding hybrid bacillus thuringiensis toxins (United States Patent 6,780,408)
Bacillus thuringiensis isolate active against lepidopteran pests, and genes encoding novel lepidopteran-active toxins (United States Patent 6,737,273)
Bacillus thuringiensis strains and their insecticidal proteins (United States Patent 6,727,409)
Bacillus thuringiensis toxins and genes for controlling coleopteran pests (United States Patent 6,710,027)
Bacillus thuringiensis isolates and toxins (United States Patent 6,689,743)
Bacillus thuringiensis CryET29 compositions toxic to coleopteran insects and ctenocephalides SPP (United States Patent 6,686,452)
Pectinophora gossypiella (pink bollworm) Bacillus thuringiensis toxin receptor BT-R2 (United States Patent 6,660,497)
Nucleic acid compositions encoding modified Bacillus thuringiensis coleopteran-toxic crystal proteins (United States Patent 6,642,030)
Coleopteran-resistant transgenic plants and methods of their production using modified Bacillus thuringiensis Cry3Bb nucleic acids (United States Patent 6,620,988)
Antibodies that specifically bind a Bacillus thuringiensis toxin receptor (United States Patent 6,613,886)
Bacillus thuringiensis isolates active against weevils (United States Patent 6,605,462)
Plants and cells transformed with a nucleic acid from Bacillus thuringiensis strain KB59A4-6 encoding a novel SUP toxin (United States Patent 6,603,063)
Lepidopteran-active Bacillus thuringiensis .delta.-endotoxin compositions and methods of use (United States Patent 6,593,293)
Bacillus thuringiensis isolated active against lepidopteran pests, and genes encoding novel lepidopteran-active toxins (United States Patent 6,573,240)
Bacillus thuringiensis CryET29 compositions toxic to coleopteran insects and Ctenocephalides SPP (United States Patent 6,537,756)
Constructed Bacillus thuringiensis strains producing mosquitocidal crystal proteins (United States Patent 6,482,636)
Receptor for a Bacillus thuringiensis toxin (United States Patent 6,455,266)
Bacillus thuringiensis strains and their insecticidal proteins (United States Patent 6,448,226)
Method for screening candidate pesticides using a receptor that binds Bacillus thuringiensis toxin (United States Patent 6,423,502)
Bacillus thuringiensis cryet33 and cryet34 compositions and uses thereof (United States Patent 6,399,330)
Bacillus thuringiensis toxins and genes for controlling coleopteran pests (United States Patent 6,344,553)
Deposit assessment of Bacillus thuringiensis delta-endotoxin (United States Patent 6,344,338)
DNA construct containing Bacillus thuringiensis gene and plants containing it (United States Patent 6,342,660)
Bacillus thuringiensis CryET33 and CryET34 compositions and uses therefor (United States Patent 6,326,351)
Formation of and methods for the production of large bacillus thuringiensis crystals with increased pesticidal activity (United States Patent 6,303,382)
Bacillus thuringiensis toxins with improved activity (United States Patent 6,303,364)
Ice granules containing endotoxins of Bacillus thuringiensis israelensis (BTI) or Bacillus sphaericus (BS) (United States Patent 6,303,117)
Insect-resistant plants comprising a Bacillus thuringiensis gene (United States Patent 6,284,949)
Plating media for the presumptive identification of Bacillus cereus and Bacillus thuringiensis (United States Patent 6,284,517)
Antifungal Bacillus thuringiensis strains (United States Patent 6,280,722)
Production of Bacillus thuringiensis integrants (United States Patent 6,280,721)
Formation of and methods for the production of large Bacillus thuringiensis crystals with increased pesticidal activity (United States Patent 6,280,720)
Production of Bacillus thuringiensis integrants (United States Patent 6,270,760)
Bacillus thuringiensis containing compositions (United States Patent 6,264,942)
Methods for controlling insect pests with compositions containing Bacillus thuringiensis strains (United States Patent 6,258,356)
Bacillus thuringiensis CryET33 and CryET34 compositions and uses thereof (United States Patent 6,248,536)
Bacillus thuringiensis isolates with broad spectrum activity (United States Patent 6,232,439)
Chimeric bacillus thuringiensis-endotoxins and host cells expressing same (United States Patent 6,221,649)
Bacillus thuringiensis isolate BTC-18 with broad spectrum activity (United States Patent 6,210,953)
Bacillus thuringiensis mutants which produce higher yields of crystal delta-endotoxin than their corresponding parental strains (United States Patent 6,210,952)
Insertion of the Bacillus thuringiensis crystal protein gene into plant colonizing microorganisms and their use (United States Patent 6,197,747)
Bacillus thuringiensis isolates active against weevils (United States Patent 6,180,775)
Modified Bacillus thuringiensis gene for lepidopteran control in plants (United States Patent 6,166,302)
Hybrid Bacillus thuringiensis .delta.-endotoxins with novel broad-spectrum insecticidal activity (United States Patent 6,156,573)
Bacillus thuringiensis strains active against lepidopteran and coleopteran pests (United States Patent 6,156,308)
Genes encoding lepidopteran-active toxins from Bacillus thuringiensis isolate PS158C2 (United States Patent 6,150,589)
Polynucleotides encoding a 130 kDa pesticidal protein from Bacillus thuringiensis isolate PS201T6 (United States Patent 6,150,165)
Bacillus thuringiensis isolates active against sucking insects (United States Patent 6,150,156)
Bacillus thuringiensis strains and their insecticidal proteins (United States Patent 6,143,550)
Nucleic acid construct comprising bacillus thuringiensis cry1Ab gene (United States Patent 6,114,608)
Polynucleotide encoding lepidopteran active toxin PS86I2 derived from Bacillus thuringiensis and methods of using PS86I2 (United States Patent 6,107,278)
Bacillus thuringiensis isolate active against lepidopteran pests, and genes encoding novel lepidopteran-active toxins (United States Patent 6,096,708)
Strains of Bacillus thuringiensis and pesticide composition containing them (United States Patent 6,096,306)
Bacillus thuringiensis CryET29 compositions toxic to coleopteran insects and ctenocephalides SPP (United States Patent 6,093,695)
Process for altering the host range or increasing the toxicity of Bacillus thuringiensis lepidoteran toxins, and recombinant DNA sequences therefor (United States Patent 6,090,931)
Bacillus thuringiensis toxins active against hymenopteran pests (United States Patent 6,077,937)
Bacillus thuringiensis isolates, toxins, and genes selectively active against certain coleopteran pests (United States Patent 6,071,511)
Bacillus thuringiensis cryET33 and cryET34 compositions and uses therefor (United States Patent 6,063,756)
Bacillus thuringiensis endotoxin genes and methods of use (United States Patent 6,063,605)
Nucleic acid segments encoding modified bacillus thuringiensis coleopteran-toxic crystal proteins (United States Patent 6,060,594)
Materials and methods for controlling insect pests with pesticidal proteins obtainable from Bacillus thuringiensis isolates PS158C2 and HD511 (United States Patent 6,048,839)
Synthetic Bacillus thuringiensis cryic gene encoding insect toxin (United States Patent 6,043,415)
Bacillus thuringiensis strains and their insecticidal proteins (United States Patent 6,028,246)
Hybrid Bacillus thuringiensis .delta.-endotoxins with novel broad-spectrum insecticidal activity (United States Patent 6,017,534)
Polynucleotide encoding a receptor for a Bacillus thuringiensis toxin and methods of use (United States Patent 6,007,981)
Bacillus thuringiensis isolates with broad spectrum activity (United States Patent 5,986,177)
Methods for controlling lepidopterans using Bacillus thuringiensis toxins obtainable from isolates PS17, PS86Q3, and HD511 (United States Patent 5,985,831)
Antiproliferative protein from Bacillus thuringiensis var. thuringiensis (United States Patent 5,977,058)
Pesticidal composition and Bacillus thuringiensis strain (United States Patent 5,976,563)
Bacillus thuringiensis isolates, toxins, and genes for controlling certain coleopteran pests (United States Patent 5,973,231)
Method of reducing the proteolytic degradation of bacillus thuringiensis insecticidal toxic protein (United States Patent 5,962,264)
Truncated gene of Bacillus thuringiensis encoding a polypeptide toxin (United States Patent 5,959,091)
Bacillus thuringiensis genes encoding nematode-active toxins (United States Patent 5,959,080)
Production of bacillus thuringiensis integrants (United States Patent 5,955,367)
Modified Bacillus thuringiensis genes with improved expression in plant cells, methods of production on and use (United States Patent 5,952,547)
Bacillus thuringiensis Cry1C compositions toxic to lepidopteran insects and methods for making Cry1C mutants (United States Patent 5,942,664)
Transformed plant with Bacillus thuringiensis toxin gene (United States Patent 5,942,658)
Bacillus thuringiensis .delta.-endotoxin (United States Patent 5,932,209)
DNA fragment encoding insecticidal crystal proteins from Bacillus thuringiensis (United States Patent 5,928,891)
Dipteran-active compound and Bacillus thuringiensis strain (United States Patent 5,912,162)
Bacillus thuringiensis isolates and toxins (United States Patent 5,888,976)
Controlling hemipteran insect pests with bacillus thuringiensis isolate PS123D1 (United States Patent 5,885,963)
Bacillus thuringiensis strains and their insecticidal proteins (United States Patent 5,885,571)
Bacillus thuringiensis strains active against lepidopteran and coleopteran pests (United States Patent 5,879,676)
Modified Bacillus thuringiensis insecticidal-crystal protein genes and their expression in plant cells (United States Patent 5,877,306)
Bacillus thuringiensis mutants which produce high yields of crystal delta-endotoxin (United States Patent 5,874,289)
Bacillus thuringiensis toxins with improved activity (United States Patent 5,874,288)
Bacillus thuringiensis strains and their insecticidal proteins (United States Patent 5,861,543)
Bacillus thuringiensis transformation method (United States Patent 5,858,745)
Bacillus thuringiensis bacteria (United States Patent 5,854,053)
Bacillus thuringiensis isolate active against lepidopteran pests, and genes encoding novel lepidopteran-active toxins (United States Patent 7,138,568)
Pectinophora gossypiella (pink bollworm) Bacillus thuringiensis toxin receptor BT-R.sub.2 (United States Patent 7,094,554)
Bacillus thuringiensis isolates active against weevils (United States Patent 7,091,177)
Lepidopteran-active Bacillus thuringiensis delta-endotoxin polynucleotides, compositions, and methods of use (United States Patent 7,078,509)
Polynucleotide encoding a gene conferring resistance to Bacillus thuringiensis toxins (United States Patent 7,029,851)
Hybrid Bacillus thuringiensis .delta.-endotoxins with novel broad-spectrum insecticidal activity (United States Patent 6,962,705)
Coleopteran toxin proteins of bacillus thuringiensis (United States Patent 6,953,835)
Bacillus thuringiensis cryET33 and cryET34 compositions and uses therefor (United States Patent 6,949,626)
Bacillus thuringiensis toxins with improved activity (United States Patent 6,831,062)
Formicidae (ant) control using Bacillus thuringiensis toxin (United States Patent 6,797,490)
Genes encoding hybrid bacillus thuringiensis toxins (United States Patent 6,780,408)
Bacillus thuringiensis isolate active against lepidopteran pests, and genes encoding novel lepidopteran-active toxins (United States Patent 6,737,273)
Bacillus thuringiensis strains and their insecticidal proteins (United States Patent 6,727,409)
Bacillus thuringiensis toxins and genes for controlling coleopteran pests (United States Patent 6,710,027)
Bacillus thuringiensis isolates and toxins (United States Patent 6,689,743)
Bacillus thuringiensis CryET29 compositions toxic to coleopteran insects and ctenocephalides SPP (United States Patent 6,686,452)
Pectinophora gossypiella (pink bollworm) Bacillus thuringiensis toxin receptor BT-R2 (United States Patent 6,660,497)
Nucleic acid compositions encoding modified Bacillus thuringiensis coleopteran-toxic crystal proteins (United States Patent 6,642,030)
Coleopteran-resistant transgenic plants and methods of their production using modified Bacillus thuringiensis Cry3Bb nucleic acids (United States Patent 6,620,988)
Antibodies that specifically bind a Bacillus thuringiensis toxin receptor (United States Patent 6,613,886)
Bacillus thuringiensis isolates active against weevils (United States Patent 6,605,462)
Plants and cells transformed with a nucleic acid from Bacillus thuringiensis strain KB59A4-6 encoding a novel SUP toxin (United States Patent 6,603,063)
Lepidopteran-active Bacillus thuringiensis .delta.-endotoxin compositions and methods of use (United States Patent 6,593,293)
Bacillus thuringiensis isolated active against lepidopteran pests, and genes encoding novel lepidopteran-active toxins (United States Patent 6,573,240)
Bacillus thuringiensis CryET29 compositions toxic to coleopteran insects and Ctenocephalides SPP (United States Patent 6,537,756)
Constructed Bacillus thuringiensis strains producing mosquitocidal crystal proteins (United States Patent 6,482,636)
Receptor for a Bacillus thuringiensis toxin (United States Patent 6,455,266)
Bacillus thuringiensis strains and their insecticidal proteins (United States Patent 6,448,226)
Method for screening candidate pesticides using a receptor that binds Bacillus thuringiensis toxin (United States Patent 6,423,502)
Bacillus thuringiensis cryet33 and cryet34 compositions and uses thereof (United States Patent 6,399,330)
Bacillus thuringiensis toxins and genes for controlling coleopteran pests (United States Patent 6,344,553)
Deposit assessment of Bacillus thuringiensis delta-endotoxin (United States Patent 6,344,338)
DNA construct containing Bacillus thuringiensis gene and plants containing it (United States Patent 6,342,660)
Bacillus thuringiensis CryET33 and CryET34 compositions and uses therefor (United States Patent 6,326,351)
Formation of and methods for the production of large bacillus thuringiensis crystals with increased pesticidal activity (United States Patent 6,303,382)
Bacillus thuringiensis toxins with improved activity (United States Patent 6,303,364)
Ice granules containing endotoxins of Bacillus thuringiensis israelensis (BTI) or Bacillus sphaericus (BS) (United States Patent 6,303,117)
Insect-resistant plants comprising a Bacillus thuringiensis gene (United States Patent 6,284,949)
Plating media for the presumptive identification of Bacillus cereus and Bacillus thuringiensis (United States Patent 6,284,517)
Antifungal Bacillus thuringiensis strains (United States Patent 6,280,722)
Production of Bacillus thuringiensis integrants (United States Patent 6,280,721)
Formation of and methods for the production of large Bacillus thuringiensis crystals with increased pesticidal activity (United States Patent 6,280,720)
Production of Bacillus thuringiensis integrants (United States Patent 6,270,760)
Bacillus thuringiensis containing compositions (United States Patent 6,264,942)
Methods for controlling insect pests with compositions containing Bacillus thuringiensis strains (United States Patent 6,258,356)
Bacillus thuringiensis CryET33 and CryET34 compositions and uses thereof (United States Patent 6,248,536)
Bacillus thuringiensis isolates with broad spectrum activity (United States Patent 6,232,439)
Chimeric bacillus thuringiensis-endotoxins and host cells expressing same (United States Patent 6,221,649)
Bacillus thuringiensis isolate BTC-18 with broad spectrum activity (United States Patent 6,210,953)
Bacillus thuringiensis mutants which produce higher yields of crystal delta-endotoxin than their corresponding parental strains (United States Patent 6,210,952)
Insertion of the Bacillus thuringiensis crystal protein gene into plant colonizing microorganisms and their use (United States Patent 6,197,747)
Bacillus thuringiensis isolates active against weevils (United States Patent 6,180,775)
Modified Bacillus thuringiensis gene for lepidopteran control in plants (United States Patent 6,166,302)
Hybrid Bacillus thuringiensis .delta.-endotoxins with novel broad-spectrum insecticidal activity (United States Patent 6,156,573)
Bacillus thuringiensis strains active against lepidopteran and coleopteran pests (United States Patent 6,156,308)
Genes encoding lepidopteran-active toxins from Bacillus thuringiensis isolate PS158C2 (United States Patent 6,150,589)
Polynucleotides encoding a 130 kDa pesticidal protein from Bacillus thuringiensis isolate PS201T6 (United States Patent 6,150,165)
Bacillus thuringiensis isolates active against sucking insects (United States Patent 6,150,156)
Bacillus thuringiensis strains and their insecticidal proteins (United States Patent 6,143,550)
Nucleic acid construct comprising bacillus thuringiensis cry1Ab gene (United States Patent 6,114,608)
Polynucleotide encoding lepidopteran active toxin PS86I2 derived from Bacillus thuringiensis and methods of using PS86I2 (United States Patent 6,107,278)
Bacillus thuringiensis isolate active against lepidopteran pests, and genes encoding novel lepidopteran-active toxins (United States Patent 6,096,708)
Strains of Bacillus thuringiensis and pesticide composition containing them (United States Patent 6,096,306)
Bacillus thuringiensis CryET29 compositions toxic to coleopteran insects and ctenocephalides SPP (United States Patent 6,093,695)
Process for altering the host range or increasing the toxicity of Bacillus thuringiensis lepidoteran toxins, and recombinant DNA sequences therefor (United States Patent 6,090,931)
Bacillus thuringiensis toxins active against hymenopteran pests (United States Patent 6,077,937)
Bacillus thuringiensis isolates, toxins, and genes selectively active against certain coleopteran pests (United States Patent 6,071,511)
Bacillus thuringiensis cryET33 and cryET34 compositions and uses therefor (United States Patent 6,063,756)
Bacillus thuringiensis endotoxin genes and methods of use (United States Patent 6,063,605)
Nucleic acid segments encoding modified bacillus thuringiensis coleopteran-toxic crystal proteins (United States Patent 6,060,594)
Materials and methods for controlling insect pests with pesticidal proteins obtainable from Bacillus thuringiensis isolates PS158C2 and HD511 (United States Patent 6,048,839)
Synthetic Bacillus thuringiensis cryic gene encoding insect toxin (United States Patent 6,043,415)
Bacillus thuringiensis strains and their insecticidal proteins (United States Patent 6,028,246)
Hybrid Bacillus thuringiensis .delta.-endotoxins with novel broad-spectrum insecticidal activity (United States Patent 6,017,534)
Polynucleotide encoding a receptor for a Bacillus thuringiensis toxin and methods of use (United States Patent 6,007,981)
Bacillus thuringiensis isolates with broad spectrum activity (United States Patent 5,986,177)
Methods for controlling lepidopterans using Bacillus thuringiensis toxins obtainable from isolates PS17, PS86Q3, and HD511 (United States Patent 5,985,831)
Antiproliferative protein from Bacillus thuringiensis var. thuringiensis (United States Patent 5,977,058)
Pesticidal composition and Bacillus thuringiensis strain (United States Patent 5,976,563)
Bacillus thuringiensis isolates, toxins, and genes for controlling certain coleopteran pests (United States Patent 5,973,231)
Method of reducing the proteolytic degradation of bacillus thuringiensis insecticidal toxic protein (United States Patent 5,962,264)
Truncated gene of Bacillus thuringiensis encoding a polypeptide toxin (United States Patent 5,959,091)
Bacillus thuringiensis genes encoding nematode-active toxins (United States Patent 5,959,080)
Production of bacillus thuringiensis integrants (United States Patent 5,955,367)
Modified Bacillus thuringiensis genes with improved expression in plant cells, methods of production on and use (United States Patent 5,952,547)
Bacillus thuringiensis Cry1C compositions toxic to lepidopteran insects and methods for making Cry1C mutants (United States Patent 5,942,664)
Transformed plant with Bacillus thuringiensis toxin gene (United States Patent 5,942,658)
Bacillus thuringiensis .delta.-endotoxin (United States Patent 5,932,209)
DNA fragment encoding insecticidal crystal proteins from Bacillus thuringiensis (United States Patent 5,928,891)
Dipteran-active compound and Bacillus thuringiensis strain (United States Patent 5,912,162)
Bacillus thuringiensis isolates and toxins (United States Patent 5,888,976)
Controlling hemipteran insect pests with bacillus thuringiensis isolate PS123D1 (United States Patent 5,885,963)
Bacillus thuringiensis strains and their insecticidal proteins (United States Patent 5,885,571)
Bacillus thuringiensis strains active against lepidopteran and coleopteran pests (United States Patent 5,879,676)
Modified Bacillus thuringiensis insecticidal-crystal protein genes and their expression in plant cells (United States Patent 5,877,306)
Bacillus thuringiensis mutants which produce high yields of crystal delta-endotoxin (United States Patent 5,874,289)
Bacillus thuringiensis toxins with improved activity (United States Patent 5,874,288)
Bacillus thuringiensis strains and their insecticidal proteins (United States Patent 5,861,543)
Bacillus thuringiensis transformation method (United States Patent 5,858,745)
Bacillus thuringiensis bacteria (United States Patent 5,854,053)
Although his recognition as a registered patent agent permits him to represent others in all patent matters before the United States Patent and Trademark Office, Dr. Demchick limits his practice to patent matters involving inventions for which he is confident that his expertise will allow him to serve his client well. He will gladly discuss whether he is comfortable handling cases involving inventions in a particular field. He will err on the side of declining cases if he has uncertainty about his ability to do what is needed in the case. Dr. Demchick does not represent clients in court. However, he refers clients to a patent attorney who does represent others in court, if it appears likely that patent related representation in court is appropriate. Dr. Demchick prepares and files non-provisional (regular) patent applications and provisional patent applications. He prepares and files utility patent applications and design patent applications. He prepares and files U.S. patent applications and international patent applications under the Patent Cooperation Treaty (PCT). He prepares and files applications to enter the U.S. National Phase for inventions for which international patent applications (PCT) were already filed. One of the matters he discusses with each client or potential client is which type of application(s) best meets that client's needs. He usually does a patent search (patentability search) as part of the preparation of a patent application. He discusses the value of patent searching with each inventor before agreeing to prepare a patent application for that inventor.