Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699811 | Use of eitelite to reduce sidestream smoke | — | 1997-12-23 |
| 5651917 | Liquid scrubbing of gas-phase contaminants | Charles T. Bridges, Charles R. Howe, Kenneth F. Podraza | 1997-07-29 |