Josef Witte
41Patents
11h-index
47Co-inventors
75Inventor score
Filing activity: Mar 27, 1972 → Sep 5, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4751275A | Process and catalyst for the preparation of syndiotactic 1,2,-polybutadiene | Emerging Cross-Sectional Technologies | 65 | Expired |
| US4242232A | Catalyst and its preparation and use for the solution polymerization of conjugated dienes | Chemistry; Metallurgy | 60 | Expired |
| US4260707A | Solution polymerization of conjugated dienes | Chemistry; Metallurgy | 56 | Expired |
| US4537982A | Production of organic nickel compounds | Chemistry; Metallurgy | 24 | Expired |
| US4292291A | Process for the production of furnace black | Chemistry; Metallurgy | 24 | Expired |
| US5686542A | Process for the preparation of branched low-pressure polyethylene, new low-pressure polyethylenes, and preformed bifunctional catalysts | Chemistry; Metallurgy | 22 | Expired |
| US3976609A | Process for the preparation of distributions | Chemistry; Metallurgy | 17 | Expired |
| US3954713A | Polycarbonate powder | Chemistry; Metallurgy | 17 | Expired |
| US4691036A | Organic nickel compounds, the production thereof and the use thereof as polymerization catalysts | Chemistry; Metallurgy | 16 | Expired |
| US4798873A | Polyolefinecarboxylic acids, their preparation and their use for preparing polyolefine-polycarbonate block copolymers | Chemistry; Metallurgy | 15 | Expired |
| US4620021A | Organic nickel compounds, production and use thereof as catalysts in the polymerization of olefins | Chemistry; Metallurgy | 12 | Expired |
| US4331823A | Catalyst, preparation thereof and use thereof in the preparation of telomeric polybutadiene homo- or co-polymers | Chemistry; Metallurgy | 11 | Expired |
| US4279697A | Method of and apparatus for shutting down a gas-cooled nuclear reactor | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4893911A | Polarizers based on polyacetylene, and the production thereof | Physics | 10 | Expired |
| US4599291A | Electrostatographic suspension developer of block copolymer reacted with mercaptan | Chemistry; Metallurgy | 9 | Expired |
| US4929689A | Polyolefinecarboxylic acids, their preparation and their use for preparing polyolefine-polycarbonate block copolymers | Chemistry; Metallurgy | 9 | Expired |
| US3960758A | Non-discoloring stabilizers | Chemistry; Metallurgy | 8 | Expired |
| US4028434A | Graft polymers of vinyl phosphonic acid esters | Chemistry; Metallurgy | 8 | Expired |
| US4189558A | Process for the production of butadiene-propylene copolymers | Chemistry; Metallurgy | 7 | Expired |
| US4276389A | Graft polymers containing silicon | Chemistry; Metallurgy | 6 | Expired |
| US5242977A | Poly-.alpha.-olefin/polyurethane block copolymers, processes for their production and their use | Chemistry; Metallurgy | 6 | Expired |
| US4849488A | Polymerization of acrylic derivatives | Chemistry; Metallurgy | 6 | Expired |
| US4665011A | Electrostatographic suspension developer having a block copolymer containing aromatic vinyl compounds and dienes reacted with mercaptan | Chemistry; Metallurgy | 5 | Expired |
| US3966637A | Catalysts | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5395888A | Thermoplastically processible poly-vinylarene/polyurethane block copolymers | Chemistry; Metallurgy | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.