WC

Walter D. Celmer

Pfizer: 21 patents #140 of 5,153Top 3%
Overall (All Time): #212,372 of 4,157,543Top 6%
21
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4707493 19-epi-dianemycin as an anticoccidial and antibacterial agent Walter P. Cullen, Hiroshi Maeda, John C. Ruddock, Junsuke Tone 1987-11-17
4652523 Method of preparing a new polyether antibiotic from streptomyces Walter P. Cullen, Hiroshi Maeda, Junsuke Tone 1987-03-24
4625041 Acidic polycyclic ether antibiotic Walter P. Cullen, Hiroshi Maeda, Junsuke Tone 1986-11-25
4605624 Nocardia species capable of producing nargenicin C.sub.1 Walter P. Cullen, Riichiro Shibakawa, Junsuke Tone 1986-08-12
4582796 Erythromycin D and esters thereof by fermentation with Nocardia sp. ATCC 39043 Walter P. Cullen, Paul Watts, Riichiro Shibakawa, Junsuke Tone 1986-04-15
4552843 Process for producing an acidic polycyclic ether antibiotic by cultivation of a novel strain of Streptomyces endus subspecies aureus Walter P. Cullen, Hiroshi Maeda, Junsuke Tone 1985-11-12
4547523 Polyether antibiotic from streptomyces Walter P. Cullen, Hiroshi Maeda, Junsuke Tone 1985-10-15
4543334 Streptomyces capable of producing neutral macrolide antibacterial agents Walter P. Cullen, Hiroshi Maeda, Junsuke Tone 1985-09-24
4533553 Polycyclic ether antibiotic Walter P. Cullen, Riichiro Shibakawa, Junsuke Tone 1985-08-06
4496546 Erythromycin D and esters thereof Walter P. Cullen, Paul Watts, Riichiro Shibakawa, Junsuke Tone 1985-01-29
4450237 Streptomyces albus subspecies indicus Walter P. Cullen, Riichiro Shibakawa, Junsuke Tone 1984-05-22
4436747 Nargenicin C.sub.1 Walter P. Cullen, Riichiro Shibakawa, Junsuke Tone 1984-03-13
4431801 Polycyclic ether antibiotic Walter P. Cullen, Riichiro Shibakawa, Junsuke Tone 1984-02-14
4411892 Tylosin macrolide antibiotics from streptomyces Walter P. Cullen, Riichiro Shibakawa, Junsuke Tone 1983-10-25
4361649 Polycyclic ether antibiotic Walter P. Cullen, Riichiro Shibakawa, Junsuke Tone 1982-11-30
4287182 Antibiotics produced by a new microbe, Catenuloplanes japonicus Walter P. Cullen, Liang H. Huang, John R. Oscarson, Riichiro Shibakawa, Junsuke Tone 1981-09-01
4247462 Ansamycin antibiotic Walter P. Cullen, John R. Oscarson, Liang H. Huang, Riichiro Shibakawa, Junsuke Tone 1981-01-27
4225674 Process for producing new ansamycin antibiotic Walter P. Cullen, John R. Oscarson, Liang H. Huang, Riichiro Shibakawa, Junsuke Tone 1980-09-30
4224314 Antibiotics produced by species of Nocardia Paul Watts, Walter P. Cullen, Liang H. Huang, Riichiro Shibakawa, Junsuke Tone 1980-09-23
4212944 Process for producing nocardicin A Liang H. Huang, Mark T. Jefferson, Hiroshi Maeda, Kozo Inoue, Riichiro Shibakawa 1980-07-15
4195079 New polycyclic ether antibiotic Walter P. Cullen, John R. Oscarson, Liang H. Huang, Riichiro Shibakawa, Junsuke Tone 1980-03-25