Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5610455 | Electret containing syndiotactic vinyl aromatic polymer | Richard C. Allen, Anthony Flannery, Charles R. Kleissler | 1997-03-11 |
| 5591530 | Flexible optically uniform sign face substrate | Robert W. Warner, Robert C. Fitzer, Ronald J. Tabar | 1997-01-07 |