Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4808235 | Cleaning gas turbine compressors | Jeffrey Woodson, Helen M. White, Gordon C. Fischer | 1989-02-28 |
| 4799995 | Scale inhibition formulations for kraft digesters | Druce K. Crump, Thomas M. Hopkins, II | 1989-01-24 |