Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE37842 | Regenerating zeolitic cracking catalyst | Brent J. Bertus, Harold W. Mark, John S. Roberts | 2002-09-17 |
| RE37789 | Regenerating zeolitic cracking catalyst | Brent J. Bertus, Harold W. Mark, John S. Roberts | 2002-07-16 |
| 5358630 | Regenerating zeolitic cracking catalyst | Brent J. Bertus, Harold W. Mark, John S. Roberts | 1994-10-25 |
| 4765884 | Cracking catalyst and process | Darrell W. Walker | 1988-08-23 |
| 4416154 | Method for measuring the surface area of a solid | Joseph G. Gallagher | 1983-11-22 |
| 4187026 | Photoacoustic method and apparatus for measuring intensity of electromagnetic radiation | John A. Favre | 1980-02-05 |