PATENTS RELATED TO PROTOZOA

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 protozoa 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.

Identification of anti-protozoal agents (United States Patent 7,067,315)

Compounds for the treatment of protozoal diseases (United States Patent 6,949,567)

Prophylactic and therapeutic immunization against protozoan infection and disease (United States Patent 6,875,584)

Use of compositions consisting of cationic compounds and proton donors for stabilizing and/or isolating nucleic acids in or from micro-organisms such as prokaryots, fungi, protozoa or algae (United States Patent 6,861,213)

Recombinant expression of heterologous nucleic acids in protozoa (United States Patent 6,846,481)

Fermentation method with continuous mass cultivation of ciliates (protozoa) for producing biogenous valuable substances (United States Patent 6,716,617)

Chromogenic substrates of sialidase of bacterial, viral, protozoa, and vertebrate origin and methods of making and using the same (United States Patent 6,667,161)

Substituted benzimidazoles, production and use thereof as agents for combating parasitic protozoas (United States Patent 6,620,833)

Control of protozoa and protozoan cysts that harbor legionella (United States Patent 6,579,859)

Substituted benzimidazole, the production thereof and the use thereof as means against parasitic protozoa (United States Patent 6,569,881)

Method of treatment of protozoan infections in fish (United States Patent 6,506,791)

Methods of treating protozoal diseases (United States Patent 6,506,393)

Immunoassay for equine protozoal myeloencephalitis in horses (United States Patent 6,489,148)

Compositions and methods for prevention and treatment of protozoal disease (United States Patent 6,465,460)

Treatment of equine protozoal myeloencephalitis (United States Patent 6,448,252)

Anti-protozoan methods and materials (United States Patent 6,440,936)

Method of killing protozoa (United States Patent 6,423,317)

Obtainment of .gamma.-linolenic acid from protozoa of the genus colpidium (United States Patent 6,403,345)

Method of killing protozoa (United States Patent 6,352,726)

Viability assay for sporocyst-forming protozoa (United States Patent 6,344,340)

Antigen test to detect equine protozoal myeloencephalitis in horse serum and cerebrospinal fluid (United States Patent 6,344,337)

Benflumetol derivatives, intermediates thereof and their use against parasitical protozoa and trematodes (United States Patent 6,329,552)

Method of controlling protozoan infections using syringomycin-family lipodepsipeptides (United States Patent 6,310,037)

Homocysteine desulphurase from the protozoan trichomonas vaginalis (United States Patent 6,306,618)

Preventing protozoal infections (United States Patent 6,291,488)

Berberine alkaloids as a treatment for chronic protozoally induced diarrhea (United States Patent 6,280,768)

Anti-protozoan methods and materials (United States Patent 6,271,203)

Treatment of equine protozoal myeloencephalitis (United States Patent 6,255,308)

Methods of treating protozoal diseases (United States Patent 6,254,879)

Intestinal protozoal vaccines (United States Patent 6,221,366)

Combination of atovaquone with proguanil for the treatment of protozoal infections (United States Patent 6,166,046)

Immunoassay for equine protozoal myeloencephalitis in horses (United States Patent 6,153,394)

UDP-glucose pyro phosphorylase enzymes from nonparasitic protozoa (United States Patent 6,143,539)

Use of inhibitors of the sodium-hydrogen exchanger for the production of a pharmaceutical for the treatment of disorders which are caused by protozoa (United States Patent 6,114,393)

Sarcocystis neuronadiagnostic primer and its use in methods of equine protozoal myeloencephalitis diagnosis (United States Patent 6,110,665)

Method for treating protozoal infections (United States Patent 6,107,316)

Protozoan free colonies of lepidoptera (United States Patent 6,058,878)

Intestinal protozoal vaccines (United States Patent 6,036,961)

Mixtures of substituted benzimidazoles with polyether antibiotics or synthetic coccidiostats as agents for use against parasitic protozoa (United States Patent 6,034,116)

Vaccine for, diagnostic assay for and method of treating parasitic hemoflagellate protozoa (United States Patent 6,027,934)

Polynucleotides for detecting leishmanias and method of detection of leishmanial protozoan (United States Patent 6,022,690)

Use of 2-methylamino-2-phenylcyclohexanone for the treatment of protozoan infections (United States Patent 6,020,381)

Sustained delivery device comprising a Leishmania protozoa and methods of making and using the same (United States Patent 6,020,144)

Anti-protozoan methods and materials (United States Patent 6,013,629)

Combination of atovaquone with proguanil for the treatment of protozoal infections (United States Patent 5,998,449)

Oregano for the treatment of internal parasites and protozoa (United States Patent 5,955,086)

Detection of protozoan parasites (United States Patent 5,942,394)

Method for treatment of equine protozoal myeloencephalitis with thiazolides (United States Patent 5,935,591)

Intestinal protozoal vaccines (United States Patent 5,935,583)

Intestinal protozoal vaccines (United States Patent 5,922,329)

Formulations and methods to treat and prevent equine protozoal myeloencephalitis (United States Patent 5,883,095)

Carotenoid synthesis inhibiting herbicides and fatty acid synthesis inhibiting oxime herbicides as anti-apicomplexa protozoan parasite agents (United States Patent 5,877,186)

Carotenoid synthesis inhibiting herbicides and fatty acid synthesis inhibiting oxime herbicides as anti-Apicomplexa protozoan parasite agents (United States Patent 5,859,028)

Method of concentrating waterborne protozoan parasites (United States Patent 5,846,439)

Treatment of equine protozoan myeloencephalitis using triazinediones (United States Patent 5,830,893)

Use of 2-methylamino-2-phenylcyclohexanone for the treatment of bacterial, fungal, virus or protozoan infections as well as for immunomodulation (United States Patent 5,811,464)

Treatment of equine protozoal myeloencephalitis (United States Patent 5,747,476)

Intestinal protozoal vaccines (United States Patent 5,676,953)

Anti-protozoan methods (United States Patent 5,646,114)

Methods of killing protozoal parasites (United States Patent 5,631,278)

Immunodiagnosis of parasitoses due to a protozoon in mollusks (United States Patent 5,601,987)

Method of treatng protozoal infections caused by microsporidia (United States Patent 5,561,164)

Method of treating parastic protozoa with substituted benzimidazoles (United States Patent 5,482,956)

Method of inhibiting protozoan growth in eye care products using a polyvalent cation chelating agent (United States Patent 5,382,599)

Sialic acid binding lectin of protozoan origin (United States Patent 5,330,897)

Treatment of protozoal infection (United States Patent 5,300,491)

Alkaloids of picralima nitida used for treatment of protozoal diseases (United States Patent 5,290,553)

Treatment of protozoal diseases (United States Patent 5,273,970)

Substituted 1,3,5-triazinetriones, for use against parasitic protozoa (United States Patent 5,196,562)

Method of inhibiting protozoal growth (United States Patent 5,196,450)

Adenosine compounds for the treatment of diseases caused by parasitic protozoa (United States Patent 5,180,714)

Control of protozoal disease (United States Patent 5,135,746)

Phenoxy and phenylthio, amino substituted benzocycloalkane derivatives in the treatment and prevention of drug-resistant protozoal infections (United States Patent 5,134,168)

Method of treating protozoal gastrointestinal disorders by administering hyperimmune milk product (United States Patent 5,106,618)

Substituted 1,2,4-triazinediones useful against protozoa in insects (United States Patent 5,070,091)

Isolated repetitive DNA of protozoan parasites (United States Patent 5,047,522)

Method and composition for treating protozoal infections (United States Patent 5,034,224)

Substituted uracils, processes for their preparation and their use against parasitic protozoa (United States Patent 5,023,260)

Method for treating bacterial and protozoal infections (United States Patent 5,002,951)

Substituted 1,3,5-triazinetriones, for use against parasitic protozoa (United States Patent 4,933,341)

5,6-Dihydro-2-(substituted phenyl)-1,2,4-triazine-3,5,(2H,4H)-diones and their use as protozoa combating agents (United States Patent 4,912,106)

Method for detecting animal-infective protozoa in vitro and a method for detecting agents which block the differentiation thereof (United States Patent 4,908,308)

Diels-alder adduct from streptazoline and naphthoquinones and its oxidation products, which have cytotoxic and antimicrobial activity and which act against protozoa (United States Patent 4,849,409)

Agents against protozoa in insects (United States Patent 4,837,216)

Protozoal antigen (United States Patent 4,837,016)

Nucleotide hybridization assay for protozoan parasites (United States Patent 4,801,530)

Anti-protozoal treatment (United States Patent 4,780,454)

Anti-protozoal 5,6-dihydro-2-(substituted phenyl)-1,2,4-triazine-3,5(2H,4H)-dione derivatives, compositions, and method of use therefor (United States Patent 4,767,760)

Methods and compositions for controlling protozoal infections in warm-blooded animals (United States Patent 4,753,798)

Certain 5-nitro-2-furyl derivatives of pyridylpropenoic acid hydrazides which are useful in treating bacterial, fungal, protozoal, parasitic and intestinal infections (United States Patent 4,711,892)

Methods and compositions for treating protozoal infections with a novel antibiotic (United States Patent 4,650,802)

Methods and compositions for treating protozoal infections with a novel antibiotic (United States Patent 4,649,143)

Anti-protozoal .alpha.-aryl-4-(4,5-dihydro-3,5-dioxo-1,2,4-triazin-2(3H)-yl)-benzeneace tonitrile derivatives, pharmaceutical compositions, and method of use therefor (United States Patent 4,631,278)

Pharmaceutical composition for treating protozoan disease containing at least one tetrocarcin (United States Patent 4,567,164)

Ethylene glycol derivatives having anti-protozoan, anti-fungal and anti-tumor activity (United States Patent 4,551,532)

1-Methyl-5-nitro-(2-substituted)-2H-imidazole derivatives, and use as bactericidal and protozoacidal agents (United States Patent 4,476,138)

Aqueous liquid formulations for control of bacterial and protozoal diseases (United States Patent 4,423,043)

Protozoacidal activity of phenothiazines (United States Patent 4,407,800)

Method of inhibiting the growth of protozoa (United States Patent 4,399,151)

Compositions for ingestion by ruminants to remove protozoa, process for their preparation and use of these compositions for the feeding of ruminants (United States Patent 4,346,081)

Identification of anti-protozoal agents (United States Patent 7,067,315)

Compounds for the treatment of protozoal diseases (United States Patent 6,949,567)

Prophylactic and therapeutic immunization against protozoan infection and disease (United States Patent 6,875,584)

Use of compositions consisting of cationic compounds and proton donors for stabilizing and/or isolating nucleic acids in or from micro-organisms such as prokaryots, fungi, protozoa or algae (United States Patent 6,861,213)

Recombinant expression of heterologous nucleic acids in protozoa (United States Patent 6,846,481)

Fermentation method with continuous mass cultivation of ciliates (protozoa) for producing biogenous valuable substances (United States Patent 6,716,617)

Chromogenic substrates of sialidase of bacterial, viral, protozoa, and vertebrate origin and methods of making and using the same (United States Patent 6,667,161)

Substituted benzimidazoles, production and use thereof as agents for combating parasitic protozoas (United States Patent 6,620,833)

Control of protozoa and protozoan cysts that harbor legionella (United States Patent 6,579,859)

Substituted benzimidazole, the production thereof and the use thereof as means against parasitic protozoa (United States Patent 6,569,881)

Method of treatment of protozoan infections in fish (United States Patent 6,506,791)

Methods of treating protozoal diseases (United States Patent 6,506,393)

Immunoassay for equine protozoal myeloencephalitis in horses (United States Patent 6,489,148)

Compositions and methods for prevention and treatment of protozoal disease (United States Patent 6,465,460)

Treatment of equine protozoal myeloencephalitis (United States Patent 6,448,252)

Anti-protozoan methods and materials (United States Patent 6,440,936)

Method of killing protozoa (United States Patent 6,423,317)

Obtainment of .gamma.-linolenic acid from protozoa of the genus colpidium (United States Patent 6,403,345)

Method of killing protozoa (United States Patent 6,352,726)

Viability assay for sporocyst-forming protozoa (United States Patent 6,344,340)

Antigen test to detect equine protozoal myeloencephalitis in horse serum and cerebrospinal fluid (United States Patent 6,344,337)

Benflumetol derivatives, intermediates thereof and their use against parasitical protozoa and trematodes (United States Patent 6,329,552)

Method of controlling protozoan infections using syringomycin-family lipodepsipeptides (United States Patent 6,310,037)

Homocysteine desulphurase from the protozoan trichomonas vaginalis (United States Patent 6,306,618)

Preventing protozoal infections (United States Patent 6,291,488)

Berberine alkaloids as a treatment for chronic protozoally induced diarrhea (United States Patent 6,280,768)

Anti-protozoan methods and materials (United States Patent 6,271,203)

Treatment of equine protozoal myeloencephalitis (United States Patent 6,255,308)

Methods of treating protozoal diseases (United States Patent 6,254,879)

Intestinal protozoal vaccines (United States Patent 6,221,366)

Combination of atovaquone with proguanil for the treatment of protozoal infections (United States Patent 6,166,046)

Immunoassay for equine protozoal myeloencephalitis in horses (United States Patent 6,153,394)

UDP-glucose pyro phosphorylase enzymes from nonparasitic protozoa (United States Patent 6,143,539)

Use of inhibitors of the sodium-hydrogen exchanger for the production of a pharmaceutical for the treatment of disorders which are caused by protozoa (United States Patent 6,114,393)

Sarcocystis neuronadiagnostic primer and its use in methods of equine protozoal myeloencephalitis diagnosis (United States Patent 6,110,665)

Method for treating protozoal infections (United States Patent 6,107,316)

Protozoan free colonies of lepidoptera (United States Patent 6,058,878)

Intestinal protozoal vaccines (United States Patent 6,036,961)

Mixtures of substituted benzimidazoles with polyether antibiotics or synthetic coccidiostats as agents for use against parasitic protozoa (United States Patent 6,034,116)

Vaccine for, diagnostic assay for and method of treating parasitic hemoflagellate protozoa (United States Patent 6,027,934)

Polynucleotides for detecting leishmanias and method of detection of leishmanial protozoan (United States Patent 6,022,690)

Use of 2-methylamino-2-phenylcyclohexanone for the treatment of protozoan infections (United States Patent 6,020,381)

Sustained delivery device comprising a Leishmania protozoa and methods of making and using the same (United States Patent 6,020,144)

Anti-protozoan methods and materials (United States Patent 6,013,629)

Combination of atovaquone with proguanil for the treatment of protozoal infections (United States Patent 5,998,449)

Oregano for the treatment of internal parasites and protozoa (United States Patent 5,955,086)

Detection of protozoan parasites (United States Patent 5,942,394)

Method for treatment of equine protozoal myeloencephalitis with thiazolides (United States Patent 5,935,591)

Intestinal protozoal vaccines (United States Patent 5,935,583)

Intestinal protozoal vaccines (United States Patent 5,922,329)

Formulations and methods to treat and prevent equine protozoal myeloencephalitis (United States Patent 5,883,095)

Carotenoid synthesis inhibiting herbicides and fatty acid synthesis inhibiting oxime herbicides as anti-apicomplexa protozoan parasite agents (United States Patent 5,877,186)

Carotenoid synthesis inhibiting herbicides and fatty acid synthesis inhibiting oxime herbicides as anti-Apicomplexa protozoan parasite agents (United States Patent 5,859,028)

Method of concentrating waterborne protozoan parasites (United States Patent 5,846,439)

Treatment of equine protozoan myeloencephalitis using triazinediones (United States Patent 5,830,893)

Use of 2-methylamino-2-phenylcyclohexanone for the treatment of bacterial, fungal, virus or protozoan infections as well as for immunomodulation (United States Patent 5,811,464)

Treatment of equine protozoal myeloencephalitis (United States Patent 5,747,476)

Intestinal protozoal vaccines (United States Patent 5,676,953)

Anti-protozoan methods (United States Patent 5,646,114)

Methods of killing protozoal parasites (United States Patent 5,631,278)

Immunodiagnosis of parasitoses due to a protozoon in mollusks (United States Patent 5,601,987)

Method of treatng protozoal infections caused by microsporidia (United States Patent 5,561,164)

Method of treating parastic protozoa with substituted benzimidazoles (United States Patent 5,482,956)

Method of inhibiting protozoan growth in eye care products using a polyvalent cation chelating agent (United States Patent 5,382,599)

Sialic acid binding lectin of protozoan origin (United States Patent 5,330,897)

Treatment of protozoal infection (United States Patent 5,300,491)

Alkaloids of picralima nitida used for treatment of protozoal diseases (United States Patent 5,290,553)

Treatment of protozoal diseases (United States Patent 5,273,970)

Substituted 1,3,5-triazinetriones, for use against parasitic protozoa (United States Patent 5,196,562)

Method of inhibiting protozoal growth (United States Patent 5,196,450)

Adenosine compounds for the treatment of diseases caused by parasitic protozoa (United States Patent 5,180,714)

Control of protozoal disease (United States Patent 5,135,746)

Phenoxy and phenylthio, amino substituted benzocycloalkane derivatives in the treatment and prevention of drug-resistant protozoal infections (United States Patent 5,134,168)

Method of treating protozoal gastrointestinal disorders by administering hyperimmune milk product (United States Patent 5,106,618)

Substituted 1,2,4-triazinediones useful against protozoa in insects (United States Patent 5,070,091)

Isolated repetitive DNA of protozoan parasites (United States Patent 5,047,522)

Method and composition for treating protozoal infections (United States Patent 5,034,224)

Substituted uracils, processes for their preparation and their use against parasitic protozoa (United States Patent 5,023,260)

Method for treating bacterial and protozoal infections (United States Patent 5,002,951)

Substituted 1,3,5-triazinetriones, for use against parasitic protozoa (United States Patent 4,933,341)

5,6-Dihydro-2-(substituted phenyl)-1,2,4-triazine-3,5,(2H,4H)-diones and their use as protozoa combating agents (United States Patent 4,912,106)

Method for detecting animal-infective protozoa in vitro and a method for detecting agents which block the differentiation thereof (United States Patent 4,908,308)

Diels-alder adduct from streptazoline and naphthoquinones and its oxidation products, which have cytotoxic and antimicrobial activity and which act against protozoa (United States Patent 4,849,409)

Agents against protozoa in insects (United States Patent 4,837,216)

Protozoal antigen (United States Patent 4,837,016)

Nucleotide hybridization assay for protozoan parasites (United States Patent 4,801,530)

Anti-protozoal treatment (United States Patent 4,780,454)

Anti-protozoal 5,6-dihydro-2-(substituted phenyl)-1,2,4-triazine-3,5(2H,4H)-dione derivatives, compositions, and method of use therefor (United States Patent 4,767,760)

Methods and compositions for controlling protozoal infections in warm-blooded animals (United States Patent 4,753,798)

Certain 5-nitro-2-furyl derivatives of pyridylpropenoic acid hydrazides which are useful in treating bacterial, fungal, protozoal, parasitic and intestinal infections (United States Patent 4,711,892)

Methods and compositions for treating protozoal infections with a novel antibiotic (United States Patent 4,650,802)

Methods and compositions for treating protozoal infections with a novel antibiotic (United States Patent 4,649,143)

Anti-protozoal .alpha.-aryl-4-(4,5-dihydro-3,5-dioxo-1,2,4-triazin-2(3H)-yl)-benzeneace tonitrile derivatives, pharmaceutical compositions, and method of use therefor (United States Patent 4,631,278)

Pharmaceutical composition for treating protozoan disease containing at least one tetrocarcin (United States Patent 4,567,164)

Ethylene glycol derivatives having anti-protozoan, anti-fungal and anti-tumor activity (United States Patent 4,551,532)

1-Methyl-5-nitro-(2-substituted)-2H-imidazole derivatives, and use as bactericidal and protozoacidal agents (United States Patent 4,476,138)

Aqueous liquid formulations for control of bacterial and protozoal diseases (United States Patent 4,423,043)

Protozoacidal activity of phenothiazines (United States Patent 4,407,800)

Method of inhibiting the growth of protozoa (United States Patent 4,399,151)

Compositions for ingestion by ruminants to remove protozoa, process for their preparation and use of these compositions for the feeding of ruminants (United States Patent 4,346,081)

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.