Francis Brion
22Patents
4h-index
18Co-inventors
56Inventor score
Filing activity: Oct 21, 1987 → Jan 19, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6136981A | Preparation of 4-phenyl-1,2,3,6-tetrahydropyridines | Chemistry; Metallurgy | 17 | Expired |
| US6235899A | Method for preparing alkyloxy furanone derivatives, compounds obtained by said method and use of said compounds | Chemistry; Metallurgy | 6 | Expired |
| US5705704A | Tricyclic compounds | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5556962A | Process for the preparation of hydrocortisone | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5502182A | Process for the preparation of hydrocortisone | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5401840A | Intermediate steroid compounds | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5312964A | Process and intermediates | Chemistry; Metallurgy | 3 | Expired |
| US5260463A | Process for the preparation of hydrocortisone | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4879392A | Process for making perhydroindole-2-carbonxylic acid | Chemistry; Metallurgy | 2 | Expired |
| US5585482A | Preparation of 11-keto steroids | Chemistry; Metallurgy | 1 | Expired |
| US5187273A | .DELTA..sup.4,9(11),17(20) -pregnatriene-3-ones | Emerging Cross-Sectional Technologies | 1 | Expired |
| US5594127A | Intermediates for the preparation of .DELTA..sup.4,9(11),17(20) -pregnatriene-3-ones | Emerging Cross-Sectional Technologies | 0 | Expired |
| US6268520A | Tricyclic compounds | Emerging Cross-Sectional Technologies | 0 | Expired |
| US5502223A | Process for preparation of .DELTA..sup.4,9(11),16 pregnatriene-3,20-diones | Emerging Cross-Sectional Technologies | 0 | Expired |
| US5278322A | Process | Chemistry; Metallurgy | 0 | Expired |
| US5756722A | Intermediates for the preparation of .DELTA..sup.4,9(11),17(20) -pregnatriene-3-ones | Emerging Cross-Sectional Technologies | 0 | Expired |
| US5959146A | Tricyclic compounds | Emerging Cross-Sectional Technologies | 0 | Expired |
| US5401864A | Process for preparing 21 acyloxy-.DELTA.4,9(11),16 pregnatrienes 3-20-dione | Emerging Cross-Sectional Technologies | 0 | Expired |
| US5294704A | 4,9(11),17(20)-pregnatriene-3-ones | Emerging Cross-Sectional Technologies | 0 | Expired |
| US6258947A | (3,4,7,8,9,10-hexahydro-6,10-dioxo-6H pyridazino[1,2-A] [1,2] diazepine-1-carboxylic acid derivatives | Chemistry; Metallurgy | 0 | Expired |
| US6433164B1 | (3,4,7,8,9,10-hexahydro-6, 10 -6H-pyridazino [1,2-a] [1,2] diazepine-1-carboxylic-acid derivatives | Chemistry; Metallurgy | 0 | Expired |
| US5760256A | Process for the production of 21-acyloxy-4,9 (11),16-pregnatriene-3,20-diones | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.