Werner Siemanowski
18Patents
8h-index
11Co-inventors
61Inventor score
Filing activity: Mar 24, 1989 → Dec 18, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5041688A | Process for the preparation of polyglycerols | Chemistry; Metallurgy | 40 | Expired |
| US4960953A | Process for preparing polyglycerols | Chemistry; Metallurgy | 40 | Expired |
| US5264460A | Process for preparing nonionic surfactants | Emerging Cross-Sectional Technologies | 34 | Expired |
| US5466719A | Polyglycerol fatty acid ester mixture | Chemistry; Metallurgy | 32 | Expired |
| US5130056A | Cleaning agent and process for its preparation | Chemistry; Metallurgy | 26 | Expired |
| US5397497A | Bath additive composition containing polyglycerol fatty acid ester mixture | Human Necessities | 25 | Expired |
| US5648067A | Cosmetic deodorant preparation containing di- or triglycerin esters | Human Necessities | 14 | Expired |
| US5424469A | Process for preparing polyglycerol fatty acid ester mixtures and use in cosmetic, pharmeceutical and chemical preparations | Human Necessities | 11 | Expired |
| US5718888A | Deodorant active-substance combinations made from wool-grease acids and partial glycerides | Human Necessities | 8 | Expired |
| US5093043A | Process for preparing nonionic surfactants | Chemistry; Metallurgy | 7 | Expired |
| US5243086A | Process for the preparation of diglycerol and/or polyglycerol | Chemistry; Metallurgy | 7 | Expired |
| US5169964A | Process for preparing high purity epichlorohydrin | Chemistry; Metallurgy | 6 | Expired |
| US5247114A | Polyglycerine and capric acid ester mixture | Chemistry; Metallurgy | 4 | Expired |
| US5510542A | Process and apparatus for producing diglycerin | Performing Operations; Transporting | 3 | Expired |
| US4992594A | Process for the preparation of polyglycerols | Chemistry; Metallurgy | 3 | Expired |
| US5024787A | Process for the preparation of fatty acid or hydroxy fatty acid esters of isopropylidene derivatives of polyglycerols | Chemistry; Metallurgy | 2 | Expired |
| US5087708A | Method of preparing 2,2-dimethyl-4-(2',3'-epoxy) propoxymethyl-1,3-dioxolane and use thereof | Chemistry; Metallurgy | 0 | Expired |
| US5403941A | Preparation of fatty acid esters of isopropylidene derivatives of polyglycerol | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.