Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5939643 | Vortex flow sensor with a cylindrical bluff body having roughned surface | Frank Ohle | 1999-08-17 |
| 5918265 | Device and method for producing a steep-fronted pressure wave in a liquid | Frank Ohle, Joachim Maul | 1999-06-29 |