Inventor · disambiguated record
Walter P. Cullen
Also filed as: CULLEN WALTER P
60 granted patents·289 citations·filing 1975–1994
98Inventor score
Files withPFIZER60
Top patents by PatentIndex Score
60 records- 0193US4195079ANew polycyclic ether antibioticPFIZER·Filed 1979·Granted Mar 25, 1980·47 cites·6 claims
- 0283US4148883AAntibiotics produced by new species of nocardiaPFIZER·Filed 1977·Granted Apr 10, 1979·24 cites·3 claims
- 0383US4148882APolycyclic ether antibiotics produced by new species of actinomycetePFIZER·Filed 1977·Granted Apr 10, 1979·23 cites·9 claims
- 0476US4224314AAntibiotics produced by species of NocardiaPFIZER·Filed 1979·Granted Sep 23, 1980·16 cites·3 claims
- 0576US4129578APolycyclic ether antibioticPFIZER·Filed 1976·Granted Dec 12, 1978·12 cites·4 claims
- 0671US4746650APolycyclic ether antibioticPFIZER·Filed 1985·Granted May 24, 1988·12 cites·6 claims
- 0770US4605624ANocardia species capable of producing nargenicin C1PFIZER·Filed 1984·Granted Aug 12, 1986·6 cites·2 claims
- 0869US4431801APolycyclic ether antibioticPFIZER·Filed 1982·Granted Feb 14, 1984·9 cites·3 claims
- 0965US4543334AStreptomyces capable of producing neutral macrolide antibacterial agentsPFIZER·Filed 1983·Granted Sep 24, 1985·8 cites·1 claims
- 1062US4751317AInophore antibacterial agent from streptomycesPFIZER·Filed 1986·Granted Jun 14, 1988·5 cites·1 claims
- 1162US4247462AAnsamycin antibioticPFIZER·Filed 1980·Granted Jan 27, 1981·7 cites·1 claims
- 1257US4169887AAntibiotics produced by species of actinoplanesPFIZER·Filed 1978·Granted Oct 2, 1979·7 cites·5 claims
- 1355US4992423APolycyclic ether antibioticsPFIZER·Filed 1988·Granted Feb 12, 1991·5 cites·5 claims
- 1455US4361649APolycyclic ether antibioticPFIZER·Filed 1981·Granted Nov 30, 1982·5 cites·3 claims
- 1555US4148880AMixture of antibiotics produced by a species of actinoplanesPFIZER·Filed 1976·Granted Apr 10, 1979·6 cites·3 claims
- 1653US4436747ANargenicin C1PFIZER·Filed 1982·Granted Mar 13, 1984·4 cites·3 claims
- 1752US4533553APolycyclic ether antibioticPFIZER·Filed 1983·Granted Aug 6, 1985·4 cites·3 claims
- 1852US4083963APolypeptide antibiotic produced by a new subspecies of streptosporangiumPFIZER·Filed 1977·Granted Apr 11, 1978·4 cites·4 claims
- 1951US5494820AStreptomyces braegensis strain and its cultivation in a process for producing C9 -desoxo-FK-520PFIZER·Filed 1992·Granted Feb 27, 1996·9 cites·7 claims
- 2050US4022885APolycyclic ether antibioticPFIZER·Filed 1975·Granted May 10, 1977·6 cites·7 claims
- 2148US4625041AAcidic polycyclic ether antibioticPFIZER·Filed 1985·Granted Nov 25, 1986·3 cites·3 claims
- 2247US4835141ANeutral macrolide antibiotics from StreptomycesPFIZER·Filed 1986·Granted May 30, 1989·3 cites·4 claims
- 2347US4013789AMixture of antibiotics produced by new species of micromonosporaPFIZER·Filed 1975·Granted Mar 22, 1977·4 cites·2 claims
- 2446US4031206AAntibiotics produced by species of pseudonocardiaPFIZER·Filed 1976·Granted Jun 21, 1977·5 cites·3 claims
- 2545US4001397AAntibiotic compound 41,012PFIZER·Filed 1975·Granted Jan 4, 1977·8 cites·2 claims
- 2644US4411892ATylosin macrolide antibiotics from streptomycesPFIZER·Filed 1982·Granted Oct 25, 1983·2 cites·5 claims
- 2743US4552843AProcess for producing an acidic polycyclic ether antibiotic by cultivation of a novel strain of Streptomyces endus subspecies aureusPFIZER·Filed 1984·Granted Nov 12, 1985·2 cites·4 claims
- 2843US4496546AErythromycin D and esters thereofPFIZER·Filed 1982·Granted Jan 29, 1985·2 cites·12 claims
- 2942US5147858AAcidic polycyclic ether useful as an anticoccidial agent and as a growth promotantPFIZER·Filed 1987·Granted Sep 15, 1992·2 cites·7 claims
- 3042US3991183AAntibiotic produced by a species of micromonosporaPFIZER·Filed 1975·Granted Nov 9, 1976·4 cites·3 claims
- 3141US4150152APolycyclic ether antibiotic produced by a strain of streptomyces hygroscopicusPFIZER·Filed 1977·Granted Apr 17, 1979·6 cites·5 claims
- 3239US4225674AProcess for producing new ansamycin antibioticPFIZER·Filed 1979·Granted Sep 30, 1980·5 cites·1 claims
- 3338US5064855AAcid polycyclic ether antibioticPFIZER·Filed 1991·Granted Nov 12, 1991·2 cites·9 claims
- 3438US4032631AMixture of antibiotics produced by new species of micromonosporaPFIZER·Filed 1975·Granted Jun 28, 1977·2 cites·4 claims
- 3536US4450237AStreptomyces albus subspecies indicusPFIZER·Filed 1983·Granted May 22, 1984·1 cites·1 claims
- 3635US4956283AProcess for preparing macrolide antibiotics by culturing streptomyces hirsutus ATCC 53513PFIZER·Filed 1989·Granted Sep 11, 1990·1 cites·4 claims
- 3735US4652523AMethod of preparing a new polyether antibiotic from streptomycesPFIZER·Filed 1984·Granted Mar 24, 1987·1 cites·1 claims
- 3835US4081532APolycyclic ether antibiotic produced by new species of dactylosporangiumPFIZER·Filed 1976·Granted Mar 28, 1978·1 cites·8 claims
- 3934US4547523APolyether antibiotic from streptomycesPFIZER·Filed 1983·Granted Oct 15, 1985·3 cites·5 claims
- 4034US4048304APolycyclic ether antibiotic for combating insectsPFIZER·Filed 1976·Granted Sep 13, 1977·1 cites·5 claims
- 4134US4038383AMixture of antibiotics produced by a species of actinoplanesPFIZER·Filed 1975·Granted Jul 26, 1977·4 cites·5 claims
- 4233US5478735AProcess for producing acidic polycyclic ether antibiotic having anticoccidial and growth promant activity with ActinomaduraPFIZER·Filed 1994·Granted Dec 26, 1995·0 cites·4 claims
- 4333US5206263AAcidic polycyclic ether useful as an anticoccidial agent and as a growth promotantPFIZER·Filed 1987·Granted Apr 27, 1993·3 cites·8 claims
- 4432US5891727AAcidic polycyclic ether useful as an anticoccidial agent and as a growth promotantPFIZER·Filed 1992·Granted Apr 6, 1999·0 cites·2 claims
- 4532US5494931AAcidic polycyclic ether antibioticPFIZER·Filed 1994·Granted Feb 27, 1996·0 cites·5 claims
- 4632US5298524AAcidic polycyclic ether antibiotic having an anticoccidial and growth promotant activityPFIZER·Filed 1988·Granted Mar 29, 1994·0 cites·9 claims
- 4732US5158937AAcidic polycyclic ether antibiotic having anticoccidial and growth promotant activityPFIZER·Filed 1988·Granted Oct 27, 1992·0 cites·6 claims
- 4832US5155097APolycyclic ether antibiotic having anthelmintic, anticoccidial and growth promotant activityPFIZER·Filed 1990·Granted Oct 13, 1992·0 cites·5 claims
- 4932US4908316AStreptomyces sp. N664-30 which produces an ionophore antibacterial agentPFIZER·Filed 1988·Granted Mar 13, 1990·2 cites·1 claims
- 5032US4032632AMixture of antibiotics produced by new species of streptosporangiumPFIZER·Filed 1976·Granted Jun 28, 1977·2 cites·3 claims
Showing the top 50 of 60 patent records by PatentIndex Score.
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