Peter Vehlewald
14Patents
9h-index
27Co-inventors
72Inventor score
Filing activity: Aug 14, 1975 → Jul 22, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4224417A | High molecular weight polyamines and their use in preparation of polyurethane resins | Chemistry; Metallurgy | 106 | Expired |
| US4250077A | Stable suspensions of inorganic fillers in organic polyhydroxyl compounds for polyurethane preparation | Chemistry; Metallurgy | 41 | Expired |
| US4792262A | Process for strengthening geological formations | Chemistry; Metallurgy | 31 | Expired |
| US5869546A | Mixtures leading to hard polyurethane foamed materials | Chemistry; Metallurgy | 20 | Expired |
| US4198333A | Stable suspensions of inorganic fillers in organic polyhydroxyl compounds containing completely or partially neutralized carboxyl groups | Chemistry; Metallurgy | 17 | Expired |
| US4240950A | Stabilized filler suspensions in polyols | Chemistry; Metallurgy | 16 | Expired |
| US4272619A | Process for the production of modified polyether polyols and their use in processes for the production of polyurethane plastics | Chemistry; Metallurgy | 14 | Expired |
| US4282329A | Stabilized filler suspensions in polyols | Chemistry; Metallurgy | 13 | Expired |
| US6007649A | Method of producing press-moulding materials with polyisocyanate binders and using latent, heat-activable catalysts | Chemistry; Metallurgy | 10 | Expired |
| US4028434A | Graft polymers of vinyl phosphonic acid esters | Chemistry; Metallurgy | 8 | Expired |
| US4668734A | Stable dispersions of polyureas and/or polyhydrazo-dicarbonamides in relatively high molecular weight hydroxyl-group containing materials, a process for the production thereof and the use thereof for the production of polyurethane plastics | Chemistry; Metallurgy | 8 | Expired |
| US4965292A | Process for strengthening geological formations | Chemistry; Metallurgy | 6 | Expired |
| US4904125A | Process for strengthening geological formations | Fixed Constructions | 5 | Expired |
| US6210523A | Compositions useful as binders for the production of composite materials | Chemistry; Metallurgy | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.