Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5666104 | Belt for detecting an increase in girth | Stanley E. Pollack, Haans K. Petruschke | 1997-09-09 |
| 5618303 | Endoscopic instrument system and method | Haans K. Petruschke, Donald B. Coon, John Nelson | 1997-04-08 |