Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828556 | Breathable, multilayered, clothlike barrier | Ralph V. Braun, Robert J. Phelan, Richard S. Yeo | 1989-05-09 |
| 4818600 | Latex coated breathable barrier | Ralph V. Braun, Christine H. Brown, Steven W. Fitting, David Law, Robert E. Weber | 1989-04-04 |