Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D743624 | Hair curler | David Richmond, Howard Richmond, Michael A. Ragosta, Zhiyong Yu, Rentong Wang +4 more | 2015-11-17 |
| D735410 | Automatic hair styling device | David Richmond, Howard Richmond, Michael A. Ragosta, Zhiyong Yu, Zhiwu Yu +4 more | 2015-07-28 |
| D732738 | Automatic hair styling device | David Richmond, Howard Richmond, Michael A. Ragosta, Zhiyong Yu, Zhiwu Yu +4 more | 2015-06-23 |
| D724784 | Automatic hair styling device | David Richmond, Howard Richmond, Michael A. Ragosta, Zhiyong Yu, Zhiwu Yu +4 more | 2015-03-17 |