Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4693237 | Radiopaque coded ring markers for use in identifying surgical grafts | Richard B. Hoffman | 1987-09-15 |
| 4602386 | Radiology apron having a waist support means | Richard B. Hoffman | 1986-07-29 |
| 4527288 | Radiology apron having a waist support means | Richard B. Hoffman | 1985-07-09 |