Waldo De Thomas
18Patents
9h-index
6Co-inventors
61Inventor score
Filing activity: Aug 20, 1976 → Nov 28, 1994
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5510307A | Free radical initiator delivery system | Chemistry; Metallurgy | 48 | Expired |
| US4153578A | Catalyst comprising Raney nickel with adsorbed molybdenum compound | Emerging Cross-Sectional Technologies | 47 | Expired |
| US5347021A | Process of vapor phase catalytic hydrogenation of maleic anhydride to gamma-butyrolactone in high conversion and high selectivity using an activated catalyst | Performing Operations; Transporting | 18 | Expired |
| US4105674A | Production of gamma-butyrolactone from maleic anhydride with a hydrogenation catalyst | Performing Operations; Transporting | 18 | Expired |
| US4083809A | Hydrogenation catalyst and method of producing same | Performing Operations; Transporting | 12 | Expired |
| US4885410A | Hydrogenation catalyst | Performing Operations; Transporting | 12 | Expired |
| US4182721A | Catalytic hydrogenation of carbonyl containing organic compounds | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5122495A | Activated catalyst for the vapor phase hydrogenation of maleic anhydride to gamma-butyrolactone in high conversion and high selectivity | Performing Operations; Transporting | 10 | Expired |
| US5149836A | Process for the production of gamma butyrolactone THF in predetermined amounts | Chemistry; Metallurgy | 9 | Expired |
| US4885411A | Hydrogenation process for converting lactones to diols | Performing Operations; Transporting | 8 | Expired |
| US4797382A | Hydrogenation catalyst and process for preparing the catalyst | Performing Operations; Transporting | 7 | Expired |
| US4795733A | Hydrogenation catalyst and process for its preparation | Performing Operations; Transporting | 7 | Expired |
| US4851085A | Purification of butyrolactone | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4361495A | Regeneration of supported-nickel catalysts | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5405818A | Free radical initiator delivery system | Chemistry; Metallurgy | 3 | Expired |
| US4276215A | Purification of pyrrolidone | Chemistry; Metallurgy | 1 | Expired |
| US5362698A | Free radical initiator delivery system | Chemistry; Metallurgy | 0 | Expired |
| US5136058A | Process for the recovery of purified gamma-butyrolactone in high yield from its crude reactor effluent | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.