PATENTS RELATED TO ANTIPROTOZOAL

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 ANTIPROTOZOAL

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 antiprotozoal 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.

Cyclic GMP dependent protein kinase as a chemotherapeutic target for antiprotozoal agents (United States Patent 7,125,700)
Targeted delivery of drugs for the treatment of parasitic infections (United States Patent 7,101,842)
Macrolide antibiotics (United States Patent 7,071,170)
Hygromycin A derivatives (United States Patent 6,867,230)
Diphosphate salt of A 4"-substituted-9-deoxo-9A-AZA-9A-homoerythromycin derivative and its pharmaceutical composition (United States Patent 6,861,412)
Macrolide antibiotics (United States Patent 6,835,716)
Ketolide antibiotics (United States Patent 6,833,444)
Erythromycin derivatives (United States Patent 6,825,171)
Macrolide antibiotics (United States Patent 6,809,080)
Antimicrobial agents (United States Patent 6,716,878)
Carbamate and carbazate ketolide antibiotics (United States Patent 6,664,238)
Ketolide antibiotics (United States Patent 6,555,524)
Polynucleotide encoding eimeria tenella cGMP dependent protein kinase (United States Patent 6,555,358)
Aliphatic hydroxy substituted piperidyl diaryl pyrrole derivatives as antiprotozoal agents (United States Patent 6,528,531)
Hygromycin A prodrugs (United States Patent 6,492,342)
Diphosphate salt of a 4"-substituted-9-deoxo-9A-AZA-9A- homoerythromycin derivative and its pharmaceutical composition (United States Patent 6,465,437)
Aliphatic amine substituted piperidyl diaryl pyrrole derivatives as antiprotozoal agents (United States Patent 6,432,980)
Human mitochondrial chaperone protein (United States Patent 6,432,915)
Histone deacetylase as target for antiprotozoal agents (United States Patent 6,428,983)
Bioadhesive complexes of polycarbophil and azole antifungal or antiprotozoal drugs (United States Patent 6,423,307)
Carbamate and carbazate ketolide antibiotics (United States Patent 6,420,343)
Synthesis of carbamate ketolide antibiotics (United States Patent 6,403,776)
Human phosphatidylinositol synthase (United States Patent 6,395,468)
2"-deoxy hygromycin derivatives (United States Patent 6,342,497)
Hygromycin derivatives (United States Patent 6,313,100)
C-4 substituted macrolide antibiotics (United States Patent 6,300,316)
Diaryl piperidyl pyrrole derivatives as antiprotozoal agents (United States Patent 6,291,480)
Berberine alkaloids as a treatment for chronic protozoally induced diarrhea (United States Patent 6,280,768)
Hygromycin A derivatives (United States Patent 6,245,745)
Triazine derivative, production and use thereof (United States Patent 6,211,178)
Histone deacetylase as target for antiprotozoal agents (United States Patent 6,110,697)
Histone deacetylase as target for antiprotozoal agents (United States Patent 6,068,987)
C-4" substituted macrolide antibiotics (United States Patent 6,025,350)
Polynucleotides encoding human mitochondrial chaperone proteins (United States Patent 6,010,879)
1, 2, 4-Triazin-3-one derivatives, production and use thereof (United States Patent 5,994,355)
Antiprotozoal cyclic tetrapeptides (United States Patent 5,922,837)
Human phosphatidylinositol synthase (United States Patent 5,916,764)
Human mitochondrial membrane protein (United States Patent 5,854,414)
Products and processes for the treatment of the alimentary canal (United States Patent 5,843,482)
Alkanoic and benzoic esters of 1-(2-hydroxypropyl)-2-methyl-5-nitromoimidazole (United States Patent 5,574,167)
9-purinyl phosphonic acid derivatives (United States Patent 5,538,978)
9-purinyl phosphonic acid derivatives (United States Patent 5,527,803)
9-purinyl phosphonic acid derivitives for treating gout (United States Patent 5,494,912)
Physiologically active peptide having immunoregulatory activities (United States Patent 5,464,819)
Anisomycin derivatives and anticancer agents, antifungal agents and antiprotozoan agents containing the same (United States Patent 5,463,078)
Lipopeptide derivatives (United States Patent 5,385,884)
Aza cyclohexapeptide compounds (United States Patent 5,378,804)
Antiprotozoal composition containing a 2-nitroimidazole derivative and method thereof (United States Patent 5,310,749)
Amide derivatives of Partricin A & Partricin B (United States Patent 5,296,597)
Substituted 1,2,4-triazinediones, and their use (United States Patent 5,256,631)
Naphthoquinone derivatives (United States Patent 5,175,319)
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)
Naphthoquinone derivatives (United States Patent 5,053,432)
Antiprotozoal agents (United States Patent 5,053,418)
Nitrogen containing heterocyclic compounds (United States Patent 4,968,698)
Compound, oleyl-2-pyridinioethyl phosphate having antifungal and antiprotozoal properties (United States Patent 4,935,520)
F-substituted-3-.beta.-D-ribofuranosyl-3H-imidazo[4,5-b]pyridines and pharmaceutical compositions thereof (United States Patent 4,780,452)
Sparsomycin derivatives (United States Patent 4,730,044)
Uniquely non-mutagenic substituted nitroimidazole (United States Patent 4,728,664)
1,2(1,4)-dimethyl-4(2)-(2-hydroxyethyl)-5-nitro-imidazole antiprotozoal agents with reduced mutagenicity (United States Patent 4,678,799)
Non-mutagenic 1,2-disubstituted 4-nitro-imidazoles useful as antiprotozoal agents (United States Patent 4,675,337)
Antiprotozoal 3-amino or substituted amino pyrazoles (United States Patent 4,622,330)
Sparsomycin derivatives (United States Patent 4,595,687)
Male oral contraceptive N-alkylimidazole derivatives, compositions, and method of use therefor (United States Patent 4,518,607)
Macbecin derivatives and their production (United States Patent 4,512,975)
Antiprotozoal compounds (United States Patent 4,485,117)
2-(1-Alkyl-5-nitro)-imidazolyl-1-(2-hydroxy-5-alkyl)-phenyl carbinols and pharmaceutical compositions containing them (United States Patent 4,478,846)
3-Aralkyloxy-2,3-dihydro-2-(triazolymethyl)benzo(b)thiophenes (United States Patent 4,468,404)
Antibiotic C-15003 PHM and production thereof (United States Patent 4,450,234)
9-Thiomaytansinoids and their pharmaceutical compositions and use (United States Patent 4,424,219)
Antibacterial and antiprotozoal 1-methyl-5-nitro-2-(2-phenylvinyl)imidazoles (United States Patent 4,423,046)
Macbecin derivatives (United States Patent 4,421,688)
Macbecin derivatives (United States Patent 4,421,687)
Dioxalane containing imidazole compounds, compositions and use (United States Patent 4,375,474)
4,5-Deoxymaytansinoids, their use and pharmaceutical compositions thereof (United States Patent 4,371,533)
Novel dianemycin derivative (United States Patent 4,366,311)
Maytansinoids (United States Patent 4,364,866)
Maytansinoid compound (United States Patent 4,362,663)
Fermentation process of preparing demethyl maytansinoids (United States Patent 4,361,650)
Process for preparing maytansinol (United States Patent 4,360,462)
Method for the production of antibiotic C-15003 P-3 (United States Patent 4,356,265)
3-Aralkyloxy-2,3-dihydro-2-(imidazolylmethyl)benzo(b)thiophenes and related derivatives, their use as antimicrobials and pharmaceutical formulations useful therefore (United States Patent 4,352,808)
Maytansinoids (United States Patent 4,331,598)
Maytansinoids (United States Patent 4,322,348)
Antibiotic (United States Patent 4,320,200)
Demethyl maytansinoids (United States Patent 4,307,016)
20-O-Acylmaytansinoids (United States Patent 4,294,757)
Quaternary ammonium derivatives of adamantane with antimicrobic activity (United States Patent 4,288,609)
5-Nitro-imidazole with antiprotozoic activity (United States Patent 4,272,538)
2-Adamantyl hydrazines and biocidal compositions thereof (United States Patent 4,254,128)
Nitroimidazoles and compositions thereof (United States Patent 4,241,060)
Method for producing antibiotic C-15003 P-4 (United States Patent 4,229,533)
Method for producing antibiotic C-15003 P-3 (United States Patent 4,228,239)
Maytansinol esters (United States Patent 4,225,494)
Trichostatin as an antiprotozoal agent (United States Patent 4,218,478)
Derivatives of substituted N-alkyl imidazoles and compositions and methods containing the same (United States Patent 4,213,991)
Biocidal methyladamantyl hydrazines and pharmaceutical compositions containing them (United States Patent 4,202,892)
Novel lonomycin derivatives (United States Patent 4,199,515)
7-Methyl-8-methylamino-10-(1'-D-ribityl)isoalloxazine (United States Patent 4,173,631)
Cyclic GMP dependent protein kinase as a chemotherapeutic target for antiprotozoal agents (United States Patent 7,125,700)
Targeted delivery of drugs for the treatment of parasitic infections (United States Patent 7,101,842)
Macrolide antibiotics (United States Patent 7,071,170)
Hygromycin A derivatives (United States Patent 6,867,230)
Diphosphate salt of A 4"-substituted-9-deoxo-9A-AZA-9A-homoerythromycin derivative and its pharmaceutical composition (United States Patent 6,861,412)
Macrolide antibiotics (United States Patent 6,835,716)
Ketolide antibiotics (United States Patent 6,833,444)
Erythromycin derivatives (United States Patent 6,825,171)
Macrolide antibiotics (United States Patent 6,809,080)
Antimicrobial agents (United States Patent 6,716,878)
Carbamate and carbazate ketolide antibiotics (United States Patent 6,664,238)
Ketolide antibiotics (United States Patent 6,555,524)
Polynucleotide encoding eimeria tenella cGMP dependent protein kinase (United States Patent 6,555,358)
Aliphatic hydroxy substituted piperidyl diaryl pyrrole derivatives as antiprotozoal agents (United States Patent 6,528,531)
Hygromycin A prodrugs (United States Patent 6,492,342)
Diphosphate salt of a 4"-substituted-9-deoxo-9A-AZA-9A- homoerythromycin derivative and its pharmaceutical composition (United States Patent 6,465,437)
Aliphatic amine substituted piperidyl diaryl pyrrole derivatives as antiprotozoal agents (United States Patent 6,432,980)
Human mitochondrial chaperone protein (United States Patent 6,432,915)
Histone deacetylase as target for antiprotozoal agents (United States Patent 6,428,983)
Bioadhesive complexes of polycarbophil and azole antifungal or antiprotozoal drugs (United States Patent 6,423,307)
Carbamate and carbazate ketolide antibiotics (United States Patent 6,420,343)
Synthesis of carbamate ketolide antibiotics (United States Patent 6,403,776)
Human phosphatidylinositol synthase (United States Patent 6,395,468)
2"-deoxy hygromycin derivatives (United States Patent 6,342,497)
Hygromycin derivatives (United States Patent 6,313,100)
C-4 substituted macrolide antibiotics (United States Patent 6,300,316)
Diaryl piperidyl pyrrole derivatives as antiprotozoal agents (United States Patent 6,291,480)
Berberine alkaloids as a treatment for chronic protozoally induced diarrhea (United States Patent 6,280,768)
Hygromycin A derivatives (United States Patent 6,245,745)
Triazine derivative, production and use thereof (United States Patent 6,211,178)
Histone deacetylase as target for antiprotozoal agents (United States Patent 6,110,697)
Histone deacetylase as target for antiprotozoal agents (United States Patent 6,068,987)
C-4" substituted macrolide antibiotics (United States Patent 6,025,350)
Polynucleotides encoding human mitochondrial chaperone proteins (United States Patent 6,010,879)
1, 2, 4-Triazin-3-one derivatives, production and use thereof (United States Patent 5,994,355)
Antiprotozoal cyclic tetrapeptides (United States Patent 5,922,837)
Human phosphatidylinositol synthase (United States Patent 5,916,764)
Human mitochondrial membrane protein (United States Patent 5,854,414)
Products and processes for the treatment of the alimentary canal (United States Patent 5,843,482)
Alkanoic and benzoic esters of 1-(2-hydroxypropyl)-2-methyl-5-nitromoimidazole (United States Patent 5,574,167)
9-purinyl phosphonic acid derivatives (United States Patent 5,538,978)
9-purinyl phosphonic acid derivatives (United States Patent 5,527,803)
9-purinyl phosphonic acid derivitives for treating gout (United States Patent 5,494,912)
Physiologically active peptide having immunoregulatory activities (United States Patent 5,464,819)
Anisomycin derivatives and anticancer agents, antifungal agents and antiprotozoan agents containing the same (United States Patent 5,463,078)
Lipopeptide derivatives (United States Patent 5,385,884)
Aza cyclohexapeptide compounds (United States Patent 5,378,804)
Antiprotozoal composition containing a 2-nitroimidazole derivative and method thereof (United States Patent 5,310,749)
Amide derivatives of Partricin A & Partricin B (United States Patent 5,296,597)
Substituted 1,2,4-triazinediones, and their use (United States Patent 5,256,631)
Naphthoquinone derivatives (United States Patent 5,175,319)
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)
Naphthoquinone derivatives (United States Patent 5,053,432)
Antiprotozoal agents (United States Patent 5,053,418)
Nitrogen containing heterocyclic compounds (United States Patent 4,968,698)
Compound, oleyl-2-pyridinioethyl phosphate having antifungal and antiprotozoal properties (United States Patent 4,935,520)
F-substituted-3-.beta.-D-ribofuranosyl-3H-imidazo[4,5-b]pyridines and pharmaceutical compositions thereof (United States Patent 4,780,452)
Sparsomycin derivatives (United States Patent 4,730,044)
Uniquely non-mutagenic substituted nitroimidazole (United States Patent 4,728,664)
1,2(1,4)-dimethyl-4(2)-(2-hydroxyethyl)-5-nitro-imidazole antiprotozoal agents with reduced mutagenicity (United States Patent 4,678,799)
Non-mutagenic 1,2-disubstituted 4-nitro-imidazoles useful as antiprotozoal agents (United States Patent 4,675,337)
Antiprotozoal 3-amino or substituted amino pyrazoles (United States Patent 4,622,330)
Sparsomycin derivatives (United States Patent 4,595,687)
Male oral contraceptive N-alkylimidazole derivatives, compositions, and method of use therefor (United States Patent 4,518,607)
Macbecin derivatives and their production (United States Patent 4,512,975)
Antiprotozoal compounds (United States Patent 4,485,117)
2-(1-Alkyl-5-nitro)-imidazolyl-1-(2-hydroxy-5-alkyl)-phenyl carbinols and pharmaceutical compositions containing them (United States Patent 4,478,846)
3-Aralkyloxy-2,3-dihydro-2-(triazolymethyl)benzo(b)thiophenes (United States Patent 4,468,404)
Antibiotic C-15003 PHM and production thereof (United States Patent 4,450,234)
9-Thiomaytansinoids and their pharmaceutical compositions and use (United States Patent 4,424,219)
Antibacterial and antiprotozoal 1-methyl-5-nitro-2-(2-phenylvinyl)imidazoles (United States Patent 4,423,046)
Macbecin derivatives (United States Patent 4,421,688)
Macbecin derivatives (United States Patent 4,421,687)
Dioxalane containing imidazole compounds, compositions and use (United States Patent 4,375,474)
4,5-Deoxymaytansinoids, their use and pharmaceutical compositions thereof (United States Patent 4,371,533)
Novel dianemycin derivative (United States Patent 4,366,311)
Maytansinoids (United States Patent 4,364,866)
Maytansinoid compound (United States Patent 4,362,663)
Fermentation process of preparing demethyl maytansinoids (United States Patent 4,361,650)
Process for preparing maytansinol (United States Patent 4,360,462)
Method for the production of antibiotic C-15003 P-3 (United States Patent 4,356,265)
3-Aralkyloxy-2,3-dihydro-2-(imidazolylmethyl)benzo(b)thiophenes and related derivatives, their use as antimicrobials and pharmaceutical formulations useful therefore (United States Patent 4,352,808)
Maytansinoids (United States Patent 4,331,598)
Maytansinoids (United States Patent 4,322,348)
Antibiotic (United States Patent 4,320,200)
Demethyl maytansinoids (United States Patent 4,307,016)
20-O-Acylmaytansinoids (United States Patent 4,294,757)
Quaternary ammonium derivatives of adamantane with antimicrobic activity (United States Patent 4,288,609)
5-Nitro-imidazole with antiprotozoic activity (United States Patent 4,272,538)
2-Adamantyl hydrazines and biocidal compositions thereof (United States Patent 4,254,128)
Nitroimidazoles and compositions thereof (United States Patent 4,241,060)
Method for producing antibiotic C-15003 P-4 (United States Patent 4,229,533)
Method for producing antibiotic C-15003 P-3 (United States Patent 4,228,239)
Maytansinol esters (United States Patent 4,225,494)
Trichostatin as an antiprotozoal agent (United States Patent 4,218,478)
Derivatives of substituted N-alkyl imidazoles and compositions and methods containing the same (United States Patent 4,213,991)
Biocidal methyladamantyl hydrazines and pharmaceutical compositions containing them (United States Patent 4,202,892)
Novel lonomycin derivatives (United States Patent 4,199,515)
7-Methyl-8-methylamino-10-(1'-D-ribityl)isoalloxazine (United States Patent 4,173,631)

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.