Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4892717 | Gas treating process | — | 1990-01-09 |
| 4804522 | Process for removing SO.sub.x and NO.sub.x compounds from gas streams | — | 1989-02-14 |
| 4675169 | Process for removing sox and nox compounds from gas streams | — | 1987-06-23 |
| 4597954 | Process for removing sox and nox compounds from gas streams | — | 1986-07-01 |
| 4576814 | Catalyst and process for oxidizing hydrogen sulfide | John W. Ward | 1986-03-18 |
| 4528277 | Catalyst for oxidizing hydrogen sulfide | John W. Ward | 1985-07-09 |
| 4478811 | Method for preventing sulfur emissions from vessels containing molten sulfur | — | 1984-10-23 |
| 4448899 | Process for removing SO.sub.x and NO.sub.x compounds from gas streams | — | 1984-05-15 |
| 4444742 | Catalyst and process for oxidizing hydrogen sulfide | John W. Ward | 1984-04-24 |
| 4444908 | Catalyst and process for oxidizing hydrogen sulfide | John W. Ward | 1984-04-24 |
| 4444741 | Catalyst and process for oxidizing hydrogen sulfide | John W. Ward | 1984-04-24 |
| 4386058 | Process for removing SO.sub.x and NO.sub.x compounds from gas streams | — | 1983-05-31 |
| 4372932 | Process for removing SO.sub.x and NO.sub.x compounds from gas streams | — | 1983-02-08 |
| 4347227 | Process for removing SO.sub.x and NO.sub.x compounds from gas streams | Walter Albertson | 1982-08-31 |
| 4331639 | Process for removing SO.sub.x and NO.sub.x compounds from gas streams | Walter Albertson | 1982-05-25 |
| 4314983 | Catalyst and process for oxidizing hydrogen sulfide | John W. Ward | 1982-02-09 |
| 4311683 | Process for removal of hydrogen sulfide from gas streams | Rowland C. Hansford | 1982-01-19 |
| 4246141 | Catalyst for incinerating H.sub.2 S to SO.sub.2 | Rowland C. Hansford | 1981-01-20 |
| 4243647 | Process for removal of hydrogen sulfide from gas streams | Rowland C. Hansford | 1981-01-06 |
| 4222991 | Process for removing SO.sub.x and NO.sub.x compounds from gas streams | — | 1980-09-16 |