Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12359723 | Sealing device for a piston rod of a reciprocating compressor | Andreas Kaufmann, Guido Pratelli | 2025-07-15 |
| 12326140 | Sealing device for a piston rod of a reciprocating compressor | Andreas Kaufmann, Guido Pratelli | 2025-06-10 |
| 12071940 | Packaging ring with relief opening | Bernhard Spiegl, Andreas Kaufmann, Marian Janko-Grasslober, Matthias Kornfeld | 2024-08-27 |
| 11808360 | Oil scraper ring for a piston rod | Marian Janko-Grasslober, Andreas Kaufmann | 2023-11-07 |
| 9138839 | Piston having position rings and support rings | Christian Hold, Alexander Jandl | 2015-09-22 |
| 8662105 | Suction valve with unloader | Gerhard Stiegelmar | 2014-03-04 |