Inventor · disambiguated record
Philip D. Hammen
Also filed as: HAMMEN PHILIP · HAMMEN PHILIP D
12 granted patents·1 pending application·105 citations·filing 1972–2002
90Inventor score
Files withPFIZER13
Top patents by PatentIndex Score
13 records- 0185US4022836A2-Aminomethyleneindanone analgesic agentsPFIZER·Filed 1972·Granted May 10, 1977·15 cites·13 claims
- 0278US4100347A3,4-Dihydro-2-methyl-4-oxo-2H-1,2-benzothiazine-3-carboxylic acid-1,1-dioxidePFIZER·Filed 1976·Granted Jul 11, 1978·9 cites·1 claims
- 0376US6825327B2Process for preparing 4″-substituted-9-deoxo-9a-aza-9a-homoerythromycin a derivativesPFIZER·Filed 2002·Granted Nov 30, 2004·15 cites·57 claims
- 0475US4064272A2-Aminomethyleneindanone analgesic agentsPFIZER·Filed 1977·Granted Dec 20, 1977·9 cites·2 claims
- 0574US4431828ARegeneration of 6-fluoro-4-chromanone from by-products in the synthesis of sorbinilPFIZER·Filed 1982·Granted Feb 14, 1984·9 cites·14 claims
- 0671US5081118ABenzothiazine dioxide derivativesPFIZER·Filed 1987·Granted Jan 14, 1992·16 cites·10 claims
- 0771US4062844AProcess for preparing hypotensive 2-(4-aroylpiperazin-1-yl)-amino-6,7-dimethoxyquinazolinesPFIZER·Filed 1976·Granted Dec 13, 1977·11 cites·7 claims
- 0869US4164514A2-Aminomethyleneindanone analgesic agentsPFIZER·Filed 1978·Granted Aug 14, 1979·10 cites·2 claims
- 0967US4117012A2-aminomethyleneindanone analgesic agentsPFIZER·Filed 1977·Granted Sep 26, 1978·9 cites·3 claims
- 1048US3950350APenam-dimethylsulfoxide complexPFIZER·Filed 1974·Granted Apr 13, 1976·2 cites·1 claims
- 1135US2003158428A1Intermediates and processes for preparing substituted chromanol derivativesPFIZER·Filed 2002·Application pending·0 cites
- 1233US6410750B1Processes and intermediates for preparing 3(S)-[(5-chloro-1H-indole-2-carbonyl)-amino]-2(R)-hydroxy-4-phenyl-butyric acidPFIZER·Filed 2000·Granted Jun 25, 2002·0 cites·22 claims
- 1327US6013808AMethod of purifying carbazole ester precursors of 6-chloro-α-methyl-carbazole-2-acetic acidPFIZER·Filed 1999·Granted Jan 11, 2000·0 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →