Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4722729 | Needleless injection instrument | Josef Zimmermann | 1988-02-02 |
| 4642095 | Locking mechanism for the removable vaccine pump of a needleless injection instrument | Josef Zimmermann | 1987-02-10 |
| 4411650 | Piston pump for needle-less injection instruments | Josef Zimmermann | 1983-10-25 |
| 4403986 | Needle-less injection instrument | Josef Zimmermann | 1983-09-13 |
| 4400171 | Needle-less injection instrument | Josef Zimmermann | 1983-08-23 |
| 4400172 | Needle-less injection instrument | Josef Zimmermann | 1983-08-23 |
| 4396384 | Needle-less injection instrument | Josef Zimmermann | 1983-08-02 |