Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5317229 | Pressure pulse source operable according to the traveling wave principle | Ulrich Schaetzle, Arnim Rohwedder, Martin Scheidt | 1994-05-31 |
| 5309897 | Apparatus for generating acoustic rarefaction pulses | Dietrich Hassler, Helmut Reichenberger, Hubert Schwark | 1994-05-10 |