Erich Penzel
13Patents
7h-index
32Co-inventors
62Inventor score
Filing activity: May 1, 1978 → Sep 11, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4250070A | Aqueous dispersions, containing hydrazine derivatives, of carbonyl-containing copolymers | Chemistry; Metallurgy | 44 | Expired |
| US4267091A | Binders for paints | Chemistry; Metallurgy | 30 | Expired |
| US5462978A | Use of unsaturated sulfonic acid polymers as spray drying assistants | Chemistry; Metallurgy | 24 | Expired |
| US4424298A | Preparation of concentrated polyacrylate dispersions | Chemistry; Metallurgy | 13 | Expired |
| US4255310A | Aqueous paints which contain polyglycidylamines as additives | Chemistry; Metallurgy | 10 | Expired |
| US5604272A | Unsaturated sulfonic acid polymers as spray drying assistants | Chemistry; Metallurgy | 10 | Expired |
| US4257859A | Benzoin photoinitiator containing a quaternary ammonium group in photo curable composition and process | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4663384A | Paints and renders containing aqueous dispersions of vinylidene chloride/(meth)acrylate copolymers as binders | Chemistry; Metallurgy | 7 | Expired |
| US4731402A | Floor covering adhesive based on aqueous polymer dispersions | Chemistry; Metallurgy | 7 | Expired |
| US4191838A | Acryloxy-alkylpropanals and methacryloxy-alkylpropanals | Chemistry; Metallurgy | 7 | Expired |
| US5624748A | Packaging materials having barrier properties against oxygen | Emerging Cross-Sectional Technologies | 1 | Expired |
| US5726224A | Composition of a redispersible spray dried unsaturated sulfonic acid polymer powder and a mineral binder | Chemistry; Metallurgy | 0 | Expired |
| US4612392A | N-substituted acrylamide and methacrylamide derivatives and their preparation | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.