DU; Guangchao
Patent Applications and Registrations
Patent applications and USPTO patent grants for DU; Guangchao.The latest application filed is for "laser device".
- DU; Guangchao - Qingdao City CN
- Du; Guangchao - Shandong CN
- DU; Guangchao - Qingdao CN
| Patent | Date |
|---|---|
| Laser Device App 20220209499 - ZHOU; Zinan ; et al. | 2022-06-30 |
| Laser Device App 20220209495 - ZHOU; Zinan ; et al. | 2022-06-30 |
| Optical module Grant 11,294,128 - Du , et al. April 5, 2 | 2022-04-05 |
| Optical Module App 20210239922 - DU; Guangchao ; et al. | 2021-08-05 |
| Optical Module App 20210149131 - DU; Guangchao ; et al. | 2021-05-20 |
| Optical Module App 20200328815 - LI; Dan ; et al. | 2020-10-15 |
| Optical Module App 20200295528 - DU; Guangchao ; et al. | 2020-09-17 |
| Optical Module App 20190346640 - Xie; Yifan ; et al. | 2019-11-14 |
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