Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810785 | Crosslinked corn bran and utilization in papermaking | — | 1989-03-07 |
| 4810970 | Oil-based flushed zone electromagnetic well logging system and method | Wayne F. Warren | 1989-03-07 |
| 4806275 | Ionic derivatives of alkyl mono and polyglycosides | Kenneth B. Moser, Vivian B. Valenty | 1989-02-21 |