Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5673533 | On-line container and seal integrity test system | Jianjun Wang, Ralph A. Gygax | 1997-10-07 |
| 5577364 | On-line container and seal integrity test system | Jianjun Wang, Ralph A. Gygax | 1996-11-26 |
| 5494038 | Apparatus for ultrasound testing | Jianjun Wang, Lonnie R. Drayer | 1996-02-27 |
| 5488811 | On-line air filter integrity testing apparatus | Jianjun Wang, Douglas OSBORN, Douglas A. Harp | 1996-02-06 |