Gerald P. Coffey
39Patents
11h-index
19Co-inventors
68Inventor score
Filing activity: Jun 17, 1974 → Aug 30, 1991
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4393192A | Crystalline copolymers prepared from N,N'-terephthaloyldi-beta-alanine and a glycol | Chemistry; Metallurgy | 64 | Expired |
| US5084352A | Multilayered barrier structures for packaging | Emerging Cross-Sectional Technologies | 56 | Expired |
| US5240525A | Method of fabricating a multilayer barrier packaging material | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4568736A | Preparation of polyamide from omega-aminonitrile with oxygen containing phosphorus catalyst | Chemistry; Metallurgy | 29 | Expired |
| US4556697A | Alternating copolyamide prepared on a polymer matrix | Chemistry; Metallurgy | 20 | Expired |
| US4725666A | Process for the manufacture of polyamide from diamine and dinitrile utilizing (1) copper containing compound and (2) oxygen containing compound of phosphorus or sulfur as catalyst mixture | Chemistry; Metallurgy | 17 | Expired |
| US4543407A | Catalytic process for the manufacture of polyamides from diamines and diamides | Chemistry; Metallurgy | 15 | Expired |
| US4490521A | Preparation of spinnable polyamide from dinitrile/diamine/water with metal salt of oxygenated phosphorus compound catalyst | Chemistry; Metallurgy | 12 | Expired |
| US4914138A | Blends of high nitrile polymers and polyolefins and method for the preparation thereon | Chemistry; Metallurgy | 12 | Expired |
| US4629776A | Process for the preparation of polyamide from omega-aminonitrile utilizing an oxygenated sulfur compound as catalyst | Chemistry; Metallurgy | 12 | Expired |
| US3950454A | Polymerizates of olefinic nitriles and diene rubbers | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4307207A | Blends of high nitrile resins and hydrophobic nylons | Chemistry; Metallurgy | 11 | Expired |
| US3947527A | Polymerizates of olefinic nitriles and diene rubbers | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4082818A | Mercaptan activation by acid in the copolymerization of acrylonitrile | Chemistry; Metallurgy | 9 | Expired |
| US4640976A | Process for the manufacture of polyamide from diamine and diamide utilizing oxygenated compound of carbon, boron, nitrogen and sulfur as catalyst | Chemistry; Metallurgy | 9 | Expired |
| US4588797A | Composition comprising amide, lithium halide and organic sulfone | Chemistry; Metallurgy | 8 | Expired |
| US4749776A | Process for the manufacture of polyamide from dinitrile and diamine in contact with an ester of an oxygenated phosphorus compound catalyst and a strong base | Chemistry; Metallurgy | 8 | Expired |
| US4520190A | Preparation of polyamide from dinitrile, diamine and water with P catalyst | Chemistry; Metallurgy | 8 | Expired |
| US4739035A | Two-step process for the manufacture of polyamide from diamine and dinitrile | Chemistry; Metallurgy | 8 | Expired |
| US4603192A | Process for the manufacture of spinnable polyamides utilizing a mixture of an oxygenated phosphorus compound and an oxygenated boron compound as catalyst | Chemistry; Metallurgy | 8 | Expired |
| US4481354A | Process and composition for lowering the reversible phase change temperature of nylon compositions | Chemistry; Metallurgy | 7 | Expired |
| US4542205A | Process for the manufacture of polyamides utilizing a mixture of an oxygenated phosphorus compound and a molybdenum compound as catalyst | Chemistry; Metallurgy | 7 | Expired |
| US5114795A | Multilayered high barrier packaging materials method for the preparation thereof | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4734487A | Process for the manufacture of polyamides from diamine and diamide utilizing carboxamide as catalyst | Chemistry; Metallurgy | 5 | Expired |
| US3951932A | Process for preparing olefinic nitrile-vinyl aromatic resins | Chemistry; Metallurgy | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.