Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5364634 | Controlled-release PH sensitive capsule and adhesive system and method | — | 1994-11-15 |
| 5292533 | Controlled release microcapsules | William A. McMahon, Keith Branly | 1994-03-08 |