Richard E. Ernst
13Patents
4h-index
13Co-inventors
57Inventor score
Filing activity: Apr 23, 1975 → Jul 18, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4590285A | Process for preparing a mixture of tetrahydrofuran and 3-alkyl tetrahydrofuran and copolymers thereof | Chemistry; Metallurgy | 27 | Expired |
| US4879420A | Preparation of mixtures of butanediols | Chemistry; Metallurgy | 9 | Expired |
| US4383895A | Purification of 1,4-butanediol | Chemistry; Metallurgy | 7 | Expired |
| US4590312A | Process for preparing 2-alkyl-1,4-butanediols | Chemistry; Metallurgy | 7 | Expired |
| US3998936A | Process for regenerating hydrogenation catalyst activity in hydrogen peroxide synthesis | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4859801A | Synthesis of mixtures of butanediols | Chemistry; Metallurgy | 3 | Expired |
| US6225477A | Process for regeneration of carbon-supported, rhenium-containing catalysts | Performing Operations; Transporting | 3 | Expired |
| US4413136A | Purification of tetrahydrofuran | Chemistry; Metallurgy | 2 | Expired |
| US6566539B1 | Catalyst regeneration by treatment with an oxidizing agent | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6355846B1 | Narrowing of poly (tetramethylene ether) glycol | Chemistry; Metallurgy | 1 | Expired |
| US5596074A | Method for controlling color formation during polytetramethylene ether glycol production | Chemistry; Metallurgy | 1 | Expired |
| US4954658A | Process for reducing fluoride levels in poly(tetramethylene ether) glycol | Chemistry; Metallurgy | 0 | Expired |
| US4499291A | Process for simultaneous hydrogenation of 2-butyne-1,4-diol and furan | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.