Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5662773 | Process for preparation of cellulose acetate filters for use in paper making | Tim J. Frederick, Lee Reynolds Partin | 1997-09-02 |
| 5631078 | Films made from paper containing cellulose ester fiber | Eric Eugene Ellery, Charles Kelly Crosswhite, Donald W. Monk | 1997-05-20 |