Issued Patents All Time
Showing 76–100 of 166 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6040257 | Hydrocarbon conversion catalyst composition and processes therefor and therewith | Charles A. Drake, Jianhua Yao | 2000-03-21 |
| 6037302 | Hydrodealkylation of C.sub.9 + aromatic compounds | Charles A. Drake | 2000-03-14 |
| 6037294 | Zeolite material, a process of making such zeolite material, a product from such process, and the use thereof in the conversion of hydrocarbons | Charles A. Drake | 2000-03-14 |
| 6034020 | Zeolite-based catalyst material, the preparation thereof and the use thereof | Charles A. Drake | 2000-03-07 |
| 6025294 | Hydrocarbon conversion catalyst composition and processes therefor and therewith | Charles A. Drake | 2000-02-15 |
| 6025293 | Hydrocarbon conversion catalyst composition and processes therefor and therewith | Ralph J. Melton, Charles A. Drake | 2000-02-15 |
| 6017844 | Hydrocarbon conversion catalyst composition and processes therefor and therewith | Charles A. Drake | 2000-01-25 |
| 6017840 | Hydrotreating catalyst composition and processes therefor and therewith | Charles A. Drake | 2000-01-25 |
| 6017442 | Hydrocarbon conversion with dual metal promoted zeolite | Charles A. Drake | 2000-01-25 |
| 6015931 | Process to convert propane into ethylene propene and C.sub.4 olefins | Charles A. Drake | 2000-01-18 |
| 6013849 | Toluene disproportionation process using a zeolite/tungsten carbide catalyst | Charles A. Drake | 2000-01-11 |
| 5997730 | Siliconized acid-treated zeolite containing zinc and boron used as a catalyst for converting hydrocarbons and method of making such catalyst | Charles A. Drake | 1999-12-07 |
| 5990032 | Hydrocarbon conversion catalyst composition and processes therefor and therewith | Charles A. Drake | 1999-11-23 |
| 5981418 | Zeolite based catalyst containing zinc, boron and phosphorus and method of making such zeolite based catalyst | Charles A. Drake, Jianhua Yao | 1999-11-09 |
| 5968343 | Hydrocarbon conversion catalyst composition and processes therefor and therewith | Charles A. Drake | 1999-10-19 |
| 5965782 | Zeolite catalyst composition and processes therefor and therewith | Charles A. Drake | 1999-10-12 |
| 5958823 | Hydrocarbon conversion catalyst composition and processes therefor and therewith | Charles A. Drake | 1999-09-28 |
| 5952259 | Process for making an acid-base leached zeolite catalyst | Charles A. Drake | 1999-09-14 |
| 5945364 | Catalyst composition comprising acid-base leached zeolites | Charles A. Drake | 1999-08-31 |
| 5945371 | Catalyst composition and processes therefor and therewith | Charles A. Drake | 1999-08-31 |
| 5929295 | Hydrodealkylation and transalkylation of C.sub.9 + aromatic compounds | Ralph J. Melton, Charles A. Drake | 1999-07-27 |
| 5925237 | Method for inhibiting the rate of coke formation during the zeolite catalyzed aromatization of hydrocarbons | Charles A. Drake | 1999-07-20 |
| 5922630 | Hydrotreating catalyst composition and processes therefor and therewith | Charles A. Drake | 1999-07-13 |
| 5907074 | Catalyst composition and processes therefor and therewith | Charles A. Drake | 1999-05-25 |
| 5905179 | Hydrocarbon conversion catalyst composition and processes therefor and therewith | Charles A. Drake | 1999-05-18 |