Heinz Wittkus
7Patents
5h-index
10Co-inventors
56Inventor score
Filing activity: Aug 1, 1980 → Jan 27, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4309523A | Water-soluble copolymer of acrylamidomethylpropanesulfonic acids salts | Chemistry; Metallurgy | 64 | Expired |
| US6013114A | Environmentally friendly diesel fuel | Emerging Cross-Sectional Technologies | 39 | Expired |
| US4587283A | Cement slurries for deep holes, with a copolymer content for reducing the water loss | Chemistry; Metallurgy | 27 | Expired |
| US5510436A | Water-soluble copolymers useful in drilling fluids | Chemistry; Metallurgy | 25 | Expired |
| US4357245A | Water-soluble copolymer and its preparation | Chemistry; Metallurgy | 23 | Expired |
| US5830830A | Use of acetal-containing mixtures | Chemistry; Metallurgy | 3 | Expired |
| US5759963A | Use of acetals | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.