Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10865909 | Vacuum-keeping multistage vacuum-generating and vacuum-destructing valve | Ping-Cheng Yu | 2020-12-15 |
| 9297345 | High pressure control valve | Harald Burkart, Wolfram Maiwald, Frank Zelano, Ralf Heingl, Stefanie Gerhardt | 2016-03-29 |