| 11845122 |
Stamping machine and method including variable binder gap |
Kaiping Li, Robert D. Miller, Richard J Siemen, Yongiun Zhou |
2023-12-19 |
| 11684962 |
Stamping apparatus having a part-time draw bead |
Chunlei Wang, Robert D. Miller, Kaiping Li, Yongjun Zhou, Richard J Siemen |
2023-06-27 |
| 11401565 |
Sheet metal forming die laser surface hardening process |
Yongjun Zhou, Robert D. Miller |
2022-08-02 |
| 11285523 |
Metal forming method including post-forming stretching to control springback |
Changqing Du, Kaiping Li, Robert D. Miller |
2022-03-29 |
| 10942529 |
Aircraft information acquisition method, apparatus and device |
Ying-Shih Huang |
2021-03-09 |
| 10933458 |
Stretch forming die |
Changqing Du, Robert D. Miller, Richard J Siemen |
2021-03-02 |
| 10795379 |
Flight control method and flight control apparatus for aircraft |
Junfeng Shen, Bin Wang, Xuefeng Wei |
2020-10-06 |
| 10786842 |
Draw-in control for sheet drawing |
Changqing Du, Robert D. Miller |
2020-09-29 |
| 10668516 |
Post-compression for springback reduction |
Changqing Du |
2020-06-02 |
| 10408296 |
Metal stamping tool with a hybrid magnetorheological-nitrogen spring |
— |
2019-09-10 |
| 10328504 |
Two-stage method of cutting ultra-high strength material sheet |
Changqing Du, Robert D. Miller |
2019-06-25 |
| 9914164 |
Machine press |
John F Siekirk, III, Changqing Du, Robert D. Miller |
2018-03-13 |
| 9827606 |
Stamping apparatus having flared bead |
Kaiping Li, Changqing Du, Richard J Siemen |
2017-11-28 |
| 9149854 |
Stamping apparatus |
Changqing Du, Yang Hu, Yongjun Zhou |
2015-10-06 |
| 9120137 |
Stamping apparatus and method of use |
Changqing Du, John F Siekirk, III |
2015-09-01 |