John P. Lawrence
15Patents
7h-index
5Co-inventors
59Inventor score
Filing activity: Jun 26, 1972 → Mar 18, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5719207A | Silica reinforced rubber composition and tire with tread | Chemistry; Metallurgy | 48 | Expired |
| US4365051A | Polyurethane prepared from diamine and prepolymer | Chemistry; Metallurgy | 36 | Expired |
| US4538418A | Heat pump | Emerging Cross-Sectional Technologies | 34 | Expired |
| US3944552A | N,N'-bisimidothio-diamines | Chemistry; Metallurgy | 10 | Expired |
| US4254272A | Aromatic diamines and polyurethanes cured thereby | Chemistry; Metallurgy | 8 | Expired |
| US4222955A | 3,5-Diamino-4-tert.-alkylbenzonitriles | Chemistry; Metallurgy | 8 | Expired |
| US4017489A | Process of preparing unsymmetrical disulfides | Chemistry; Metallurgy | 7 | Expired |
| US4110319A | Thiocarbamate additives for sulfur vulcanizable polymers | Chemistry; Metallurgy | 5 | Expired |
| US4042642A | Urea additives for sulfur vulcanizable polymers | Chemistry; Metallurgy | 2 | Expired |
| US4085094A | Inhibiting premature vulcanization of rubbers | Chemistry; Metallurgy | 1 | Expired |
| US3935219A | Antimicrobial dihalonitromethylisoxazoles | Chemistry; Metallurgy | 1 | Expired |
| US4066697A | Process for preparing tetramethylthiuram tetrasulfide | Chemistry; Metallurgy | 1 | Expired |
| US4087440A | N-(hydrocarbyl thiophosphoryldithio)-imide vulcanization agents and accelerators | Chemistry; Metallurgy | 1 | Expired |
| US4042641A | Inhibiting premature vulcanization of rubbers with N-aryl-hydrocarbyldithio-formimidate | Chemistry; Metallurgy | 0 | Expired |
| US3960857A | Urea additives for sulfur vulcanizable polymers | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.