Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9803700 | Clutch ring gear assembly and method of construction thereof | Liu Shunhua, Zhao Quande, Peng Sibo | 2017-10-31 |
| 8621908 | Method for testing the quality of a metallic coating | Andreas Birkenstock, Michael LINNEPE | 2014-01-07 |
| 7954353 | Method and device for testing the quality of a metallic coating | Andreas Birkenstock, Michael LINNEPE | 2011-06-07 |