Frederick T. Clark
20Patents
9h-index
11Co-inventors
64Inventor score
Filing activity: Mar 30, 1990 → May 24, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5221656A | Hydroprocessing catalyst | Performing Operations; Transporting | 24 | Expired |
| US5151172A | Distillate hydrogenation | Chemistry; Metallurgy | 21 | Expired |
| US5147526A | Distillate hydrogenation | Chemistry; Metallurgy | 19 | Expired |
| US5087596A | Process for regenerating spent heavy hydrocarbon hydroprocessing catalyst | Performing Operations; Transporting | 18 | Expired |
| US5273645A | Manufacture of lubricating oils | Chemistry; Metallurgy | 13 | Expired |
| US5154819A | Hydroprocessing using regenerated spent heavy hydrocarbon catalyst | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5308814A | Distillate hydrogenation catalyst | Chemistry; Metallurgy | 11 | Expired |
| US5009771A | Hydroconversion process using mixed catalyst system | Performing Operations; Transporting | 9 | Expired |
| US5100855A | Mixed catalyst system for hyproconversion system | Performing Operations; Transporting | 9 | Expired |
| US5837128A | Method for grading cylindrical catalyst particles in a bed to reduce pressure drop | Performing Operations; Transporting | 8 | Expired |
| US5275990A | Process for regenerating a spent resid hydroprocessing catalyst using a group IIA metal | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5346612A | Distillate hydrogenation utilizing a catalyst comprising platinum, palladium, and a beta zeolite support | Performing Operations; Transporting | 6 | Expired |
| US5071538A | Process for regenerating spent heavy hydrocarbon hydroprocessing catalyst | Chemistry; Metallurgy | 5 | Expired |
| US5232885A | Process for regenerating a spent resin hydroprocessing catalyst using a group IV metal | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4994423A | Process for regenerating spent heavy hydrocarbon hydroprocessing catalyst | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5225383A | Distillate hydrogenation catalyst | Chemistry; Metallurgy | 5 | Expired |
| US5346874A | Distillate hydrogenation | Performing Operations; Transporting | 5 | Expired |
| US4997799A | Process for regenerating spent heavy hydrocarbon hydroprocessing catalyst | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5271828A | Distillate hydrogenation | Performing Operations; Transporting | 2 | Expired |
| US5494870A | Distillate hydrogenation catalyst | Performing Operations; Transporting | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.