Walter Sibral
10Patents
6h-index
7Co-inventors
55Inventor score
Filing activity: Jan 27, 1975 → Feb 8, 1984
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4507459A | Polyurethane compositions having low hysteresis | Chemistry; Metallurgy | 32 | Expired |
| US4129741A | Novel polyethers having terminal amino groups, a process for their production and their application | Chemistry; Metallurgy | 20 | Expired |
| US4247677A | Novel polyethers having terminal amino groups and plastic materials made therefrom | Chemistry; Metallurgy | 20 | Expired |
| US4260729A | Polyurea polymers formed from polyethers having terminal amino groups | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4153801A | Polyethers having terminal amino groups | Chemistry; Metallurgy | 18 | Expired |
| US4519432A | Reinforced polyurethane tires | Chemistry; Metallurgy | 7 | Expired |
| US4014874A | Process for the manufacture of 3-substituted thiomethyl-7-amino-2-cephem-4-carboxylic acid compound | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4229561A | Polyurea polymer prepared from polyethers having heterocyclic groups and terminal amino groups | Chemistry; Metallurgy | 1 | Expired |
| US4139706A | Novel poly(thio)ethers having terminal amino groups, a process for their production and their application | Chemistry; Metallurgy | 0 | Expired |
| US4283548A | Diisatoic acid or triisatoic acid derivatives | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.