Pfizer Inc
Pfizer IncActive Patents
0
Total Holdings
44
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| EP0079134A1 | Stereospecific synthesis of 5-phenyl-2S-pentanol | Expired / Lapsed | 1982-10-13 | — | 11 | Details |
| EP0018166A1 | Apparatus for use in stereotactic surgery | Expired / Lapsed | 1980-04-09 | — | 8 | Details |
| FR2256756A1 | FR2256756A1 - - Google Patents | Expired / Lapsed | 1975-01-06 | — | 0 | Details |
| US6080422A | Methods of angioplasty and cardiac catheterization | Expired / Lapsed | 1996-10-11 | 2000-06-27 | 30 | Details |
| US5441986A | Estrogen agonists as remedies for prostate and cardiovascul… | Expired / Lapsed | 1994-07-19 | 1995-08-15 | 3 | Details |
| US5362852A | Modified peptide derivatives conjugated at 2-hydroxyethylam… | Expired / Lapsed | 1991-09-27 | 1994-11-08 | 13 | Details |
| US5141748A | Implant drug delivery device | Expired / Lapsed | 1989-02-17 | 1992-08-25 | 8 | Details |
| US4830860A | Stressed polymeric device for controlled release of a subst… | Expired / Lapsed | 1986-10-30 | 1989-05-16 | 30 | Details |
| US4526579A | Method for graft copolymerization to natural rubber articles | Expired / Lapsed | 1983-06-17 | 1985-07-02 | 17 | Details |
| US4308250A | Sustained drug release device | Expired / Lapsed | 1980-12-09 | 1981-12-29 | 5 | Details |
| US4268497A | Sustained drug release device | Expired / Lapsed | 1979-11-07 | 1981-05-19 | 3 | Details |
| US4220153A | Controlled release delivery system | Expired / Lapsed | 1979-02-22 | 1980-09-02 | 42 | Details |
| US4220152A | Delivery system | Expired / Lapsed | 1979-02-22 | 1980-09-02 | 42 | Details |
| US4150220A | Semi-synthetic 4"-erythromycin A derivatives | Expired / Lapsed | 1977-12-01 | 1979-04-17 | 33 | Details |
| US3957580A | Immobilized microbial cells | Expired / Lapsed | 1974-03-27 | 1976-05-18 | 21 | Details |
| US3755558A | Polylactide drug mixtures for topical application atelet ag… | Expired / Lapsed | 1971-02-23 | 1973-08-28 | 0 | Details |
| US3733205A | Enzymatic removal of diacetyl from fermented beverages | Expired / Lapsed | 1970-08-07 | 1973-05-15 | 0 | Details |
| US3594469A | Pellets for supplying biologically active substances to rum… | Expired / Lapsed | 1965-11-23 | 1971-07-20 | 0 | Details |
| US3577514A | Sustained release pharmaceutical tablets | Expired / Lapsed | 1968-06-10 | 1971-05-04 | 0 | Details |
| US3476366A | Gas liquid transfer apparatus | Expired / Lapsed | 1966-12-29 | 1969-11-04 | 0 | Details |
| US3402240A | Medicinal tablet and process of making same | Expired / Lapsed | 1957-06-25 | 1968-09-17 | 2 | Details |
| US3293045A | Increasing the flavor strength of anethole, cinnamaldehyde … | Expired / Lapsed | 1963-10-18 | 1966-12-20 | 2 | Details |
| US3270525A | Perfume dispensing jewelry with frangible portion | Expired / Lapsed | 1964-01-28 | 1966-09-06 | 0 | Details |
| US3232836A | Facilitating healing of body surface wounds by intravenous … | Expired / Lapsed | 1959-08-24 | 1966-02-01 | 2 | Details |
| US3159652A | Preparation of gamma-pyrones | Expired / Lapsed | 1962-06-13 | 1964-12-01 | 4 | Details |
| US3055873A | Preparation of polyitaconic acid | Expired / Lapsed | 1960-07-27 | 1962-09-25 | 2 | Details |
| US3053332A | Automatic fill-control system | Expired / Lapsed | 1958-05-01 | 1962-09-11 | 0 | Details |
| US2971309A | Apparatus for loading articles into partitioned cartons | Expired / Lapsed | 1957-05-02 | 1961-02-14 | 0 | Details |
| US2935449A | Stabilized vitamin a compositions | Expired / Lapsed | 1958-04-14 | 1960-05-03 | 2 | Details |
| US2907327A | Pellet implanter | Expired / Lapsed | 1957-02-08 | 1959-10-06 | 0 | Details |
| US2887439A | Palatable antihistamine tablet | Expired / Lapsed | 1956-09-28 | 1959-05-19 | 2 | Details |
| US2887437A | Palatable vitamin tablet containing an amino acid | Expired / Lapsed | 1956-08-22 | 1959-05-19 | 2 | Details |
| US2887436A | Pharmaceutical compositions | Expired / Lapsed | 1956-05-28 | 1959-05-19 | 1 | Details |
| US2859750A | Hypodermic syringe | Expired / Lapsed | 1956-02-10 | 1958-11-11 | 0 | Details |
| US2859751A | Hypodermic syringe | Expired / Lapsed | 1956-02-10 | 1958-11-11 | 0 | Details |
| US2857913A | Hypodermic needle assembly | Expired / Lapsed | 1957-04-03 | 1958-10-28 | 0 | Details |
| US2848997A | Squeeze bottle | Expired / Lapsed | 1956-06-11 | 1958-08-26 | 0 | Details |
| US2841937A | Machine for assembling disposable cartridges for hypodermic… | Expired / Lapsed | 1956-12-28 | 1958-07-08 | 0 | Details |
| US2836942A | Method of encasing and sterilizing needles | Expired / Lapsed | 1953-11-16 | 1958-06-03 | 1 | Details |
| US2811483A | Pharmaceutical composition and process for preparing the sa… | Expired / Lapsed | 1954-12-09 | 1957-10-29 | 4 | Details |
| US2737948A | Disposable cartridge for hypodermic syringe | Expired / Lapsed | 1954-08-23 | 1956-03-13 | 2 | Details |
| CA516567A | Oxytetracycline compounds | Expired / Lapsed | — | 1955-09-13 | 0 | Details |
| US2689202A | Process of grinding frozen vitamin a material | Expired / Lapsed | 1951-12-11 | 1954-09-14 | 2 | Details |
| US1900517A | Highly soluble calcium gluconate and process of making same | Expired / Lapsed | 1931-07-06 | 1933-03-07 | 0 | Details |