Raymond M. Cahen
27Patents
9h-index
11Co-inventors
72Inventor score
Filing activity: Feb 10, 1975 → Jun 7, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4587375A | Process for the isomerization of olefins | Chemistry; Metallurgy | 31 | Expired |
| US4831200A | Process for the selective hydrogenation of alkynes | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4118342A | Process for producing catalysts | Chemistry; Metallurgy | 18 | Expired |
| US4161483A | Hydrogenation process | Chemistry; Metallurgy | 13 | Expired |
| US5171331A | Process for producing gasoline | Chemistry; Metallurgy | 12 | Expired |
| US4306105A | Process for the production of polyisobutenes | Chemistry; Metallurgy | 12 | Expired |
| US4229361A | Hydrogenation catalyst and hydrogenation process | Performing Operations; Transporting | 10 | Expired |
| US3993592A | Process for preparing catalysts for the hydrotreating of petroleum fractions | Chemistry; Metallurgy | 9 | Expired |
| US4599473A | Process for para selective alkylation of aromatic hydrocarbons | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4613724A | Process for removing carbonyl-sulfide from liquid hydrocarbon feedstocks | Chemistry; Metallurgy | 8 | Expired |
| US4188333A | Process for selectively hydrogenating polyenic compounds in oils | Chemistry; Metallurgy | 8 | Expired |
| US4781906A | Crystalline silicas | Chemistry; Metallurgy | 7 | Expired |
| US4772456A | Process for preparing crystalline silicas | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4451686A | Dehydrogenation process | Chemistry; Metallurgy | 5 | Expired |
| US3993590A | Process for preparing spheroidal silico-alumina particles | Performing Operations; Transporting | 5 | Expired |
| US4582818A | Halogen-containing alumina catalysts prepared from alumina of at least 99% purity | Performing Operations; Transporting | 5 | Expired |
| US3992324A | Process for the preparation of catalysts for the hydrotreatment of petroleum fractions | Performing Operations; Transporting | 4 | Expired |
| US3966996A | Process for preparing spheroidal alumina particles | Chemistry; Metallurgy | 4 | Expired |
| US4830735A | Process for removing carbonyl-sulfide from liquid hydrocarbon feedstocks | Chemistry; Metallurgy | 4 | Expired |
| US5674379A | Process for removing carbonyl-sulfide from liquid hydrocarbon feedstocks | Chemistry; Metallurgy | 3 | Expired |
| US5470456A | Process for removing carbonyl-sulfide from liquid hydrocarbon feedstocks | Chemistry; Metallurgy | 3 | Expired |
| US4748291A | Catalytic treatment process | Chemistry; Metallurgy | 3 | Expired |
| US3993589A | Preparation of spheroidal silico-alumina particles | Performing Operations; Transporting | 2 | Expired |
| US3993596A | Preparation of spheroidal alumina particles | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4556753A | Process for producing isobutene | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.