Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8331547 | Call handling | Steven Smith | 2012-12-11 |
| 5887590 | Eyelid closure patch | — | 1999-03-30 |
| 4272441 | Preparation of carbamates | Robert E. Keay, Edward F. Orwoll | 1981-06-09 |
| 4223159 | By-product recycling process | Edward F. Orwoll | 1980-09-16 |