Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5448830 | Process for the production of a heat exchanger and apparatus for carrying out the method | Hans-Henning von Cleve | 1995-09-12 |
| 5292056 | method of welding heat exchangers | Hans-Henning von Cleve | 1994-03-08 |
| 4849105 | Apparatus for removing solid particles from cooling water | — | 1989-07-18 |
| 4694892 | Apparatus for retrieving spherically shaped cleansing bodies | — | 1987-09-22 |
| 4688630 | Apparatus for retrieving spherically shaped cleansing bodies | — | 1987-08-25 |
| 4551247 | Device for separating solid particles of dirt from cooling water for power stations | Klaus D. Nitsch | 1985-11-05 |
| 4350202 | Extractor for recirculating cleaning bodies in a fluid-circulation system | Adalbert Schulz | 1982-09-21 |
| 4337662 | Electrodynamic sound converter | Hermann-Josef Kopineck, Wolfgang Bottcher, Klaus D. Mreyen, Volker Deutsch | 1982-07-06 |