Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702644 | Pitch control composition | George K. Wai | 1997-12-30 |
| 5618861 | Pitch control composition and process for inhibiting pitch deposition | George K. Wai | 1997-04-08 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702644 | Pitch control composition | George K. Wai | 1997-12-30 |
| 5618861 | Pitch control composition and process for inhibiting pitch deposition | George K. Wai | 1997-04-08 |