Peter S. Gradeff
30Patents
10h-index
12Co-inventors
68Inventor score
Filing activity: Mar 24, 1975 → Apr 8, 1991
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4545923A | Process for preparing colloidal ceric oxide and complexes thereof with free organic acids | Chemistry; Metallurgy | 28 | Expired |
| US4647401A | Process for preparing colloidal ceric oxide and complexes thereof with free organic acids | Chemistry; Metallurgy | 22 | Expired |
| US4351962A | Process for the preparation of hydroxy benzene carboxaldehydes | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4886624A | Colloidal alcohol-dispersible association complexes of ceric dioxide and a hydroxyphenyl carboxylic acid | Chemistry; Metallurgy | 18 | Expired |
| US4599201A | Process for preparing ceric carboxylates | Chemistry; Metallurgy | 16 | Expired |
| US4973501A | Lanthanide impregnated wood composition and method for permanently depositing water insoluble lanthanide derivatives into wood materials | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4881976A | Antifouling paints containing matrices cross-linked with lanthanides and methods of making and use | Chemistry; Metallurgy | 11 | Expired |
| US4489000A | Process for the preparation of ceric alkoxides | Chemistry; Metallurgy | 11 | Expired |
| US4041083A | Process for the selective hydrogenation of the keto group in nonconjugated olefinic ketones | Chemistry; Metallurgy | 10 | Expired |
| US4836830A | Rare earth compositions for diesel fuel stabilization | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4842898A | Method of preserving wood with lanthanide derivatives lanthanide derivatives | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4663439A | Process for the preparation of ceric alkoxides | Chemistry; Metallurgy | 8 | Expired |
| US4889771A | Method of preserving wood with lanthanide derivatives | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4492655A | Tricyclopentadienyl cerium and process for preparing the same | Chemistry; Metallurgy | 7 | Expired |
| US4388250A | Process for the preparation of p-hydroxy-benzyl-nitriles and corresponding amines | Chemistry; Metallurgy | 7 | Expired |
| US4029709A | Process for the hydrogenation of citral to citronellal and of citronellal to citronellol using chromium-promoted Raney nickel catalyst | Chemistry; Metallurgy | 6 | Expired |
| US4801692A | Ceric alkanolatoamines | Chemistry; Metallurgy | 5 | Expired |
| US5099006A | Alkoxy-type derivative compounds and process for preparing alkoxy-type derivatives of trivalent Group 3b metals | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5017695A | Ceric hydrocarbyl silyloxides and process for their preparation | Chemistry; Metallurgy | 3 | Expired |
| US4743473A | Method of preserving wood with lanthanide derivatives | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4920204A | Ceric hydrocarbyloxy nitrates and their use in organic synthesis | Chemistry; Metallurgy | 2 | Expired |
| US4883689A | Method of preserving wood with lanthanide derivatives | Performing Operations; Transporting | 2 | Expired |
| US3971830A | Process for the semihydrogenation of citral to citronellal | Chemistry; Metallurgy | 2 | Expired |
| US4800072A | Anhydrous cerous nitrate-ammonium nitrate complex and a process for its preparation from ceric ammonium nitrate | Chemistry; Metallurgy | 1 | Expired |
| US5017694A | Process for the preparation of ceric hydrocarbyl silyloxides by transetherification of ceric alkoxides | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.