Elmar Wolf
66Patents
14h-index
19Co-inventors
81Inventor score
Filing activity: May 30, 1975 → Apr 30, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4463154A | Polyurethane powder enamels free of cleavage products as well as enamel coatings produced from such powders | Chemistry; Metallurgy | 39 | Expired |
| US4495229A | One-component, heat-curing polyurethane-coatings, stable in storage | Chemistry; Metallurgy | 38 | Expired |
| US4454317A | Process for the trimerization of diisocyanates | Chemistry; Metallurgy | 38 | Expired |
| US4483798A | Polyaddition products containing uretidione groups and process for their preparation | Chemistry; Metallurgy | 32 | Expired |
| US4356307A | Cyclic imides, their preparation and use | Chemistry; Metallurgy | 31 | Expired |
| US4476054A | Uretidione dimer of isophorone diisocyanate and method of preparation | Chemistry; Metallurgy | 29 | Expired |
| USD442972S | Lawnmower | General | 29 | Expired |
| US4246380A | Powdery polyurethane lacquers based on polyester resins and blocked isocyanates | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4121405A | Grass-cutting and air-impelling means for a rotary scythe lawn mower | Human Necessities | 26 | Expired |
| US4269020A | Means for impelling grass clippings in a rotary-scythe grass mower | Human Necessities | 25 | Expired |
| US4355058A | Powdery coating media and their use | Chemistry; Metallurgy | 15 | Expired |
| US4478031A | Lawnmowers with rotatable cutting blades | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4302351A | Compounds containing isocyanuric groups and terminally blocked isocyanate groups | Chemistry; Metallurgy | 14 | Expired |
| US4210687A | Method for the coating of glass surfaces | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5621063A | Blocked polyisocyanates and a process for their preparation | Chemistry; Metallurgy | 14 | Expired |
| US4313876A | Production of isophoronediisocyanate adducts containing free NCO-grops and NCO-groups end blocked with .epsilon.-caprolactam | Chemistry; Metallurgy | 12 | Expired |
| US4306051A | Isocyanurate group-and terminally blocked isocyanate group-containing compounds | Chemistry; Metallurgy | 11 | Expired |
| US4246132A | Isocyanurate group-and terminally-blocked isocyanate group-containing mixtures | Chemistry; Metallurgy | 11 | Expired |
| US5756634A | Liquid one component PU stoving enamels | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4354014A | Powdered coating compositions having good storage stability and production of same | Chemistry; Metallurgy | 10 | Expired |
| US4668780A | Isocyanate-uretdiones and a method for their production | Chemistry; Metallurgy | 9 | Expired |
| US5173560A | Cold-curing solvent free, duroplastic polyurethane-polyurea compounds | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5633336A | Polyamines containing urea groups and process for their preparation | Chemistry; Metallurgy | 8 | Expired |
| US4200725A | Method of producing blocked polyisocyanates by reaction of an imidazoline with an isocyanate | Chemistry; Metallurgy | 8 | Expired |
| US5859164A | Uretdione-functional polyaddition compounds, a process for their preparation, and their use | Chemistry; Metallurgy | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.