| 11285523 |
Metal forming method including post-forming stretching to control springback |
Dajun Zhou, Kaiping Li, Robert D. Miller |
2022-03-29 |
| 10933458 |
Stretch forming die |
Dajun Zhou, Robert D. Miller, Richard J Siemen |
2021-03-02 |
| 10786842 |
Draw-in control for sheet drawing |
Dajun Zhou, Robert D. Miller |
2020-09-29 |
| 10668516 |
Post-compression for springback reduction |
Dajun Zhou |
2020-06-02 |
| 10328504 |
Two-stage method of cutting ultra-high strength material sheet |
Dajun Zhou, Robert D. Miller |
2019-06-25 |
| 9914164 |
Machine press |
John F Siekirk, III, Dajun Zhou, Robert D. Miller |
2018-03-13 |
| 9827606 |
Stamping apparatus having flared bead |
Dajun Zhou, Kaiping Li, Richard J Siemen |
2017-11-28 |
| 9149854 |
Stamping apparatus |
Dajun Zhou, Yang Hu, Yongjun Zhou |
2015-10-06 |
| 9120137 |
Stamping apparatus and method of use |
Dajun Zhou, John F Siekirk, III |
2015-09-01 |