Zhang; Biwei
Patent Applications and Registrations
Patent applications and USPTO patent grants for Zhang; Biwei.The latest application filed is for "pen".
- Zhang; Biwei - Ningbo CN
| Patent | Date |
|---|---|
| Pen Grant D632,333 - Zhang February 8, 2 | 2011-02-08 |
| Pen Grant D628,645 - Zhang December 7, 2 | 2010-12-07 |
| Pen Grant D628,641 - Zhang December 7, 2 | 2010-12-07 |
| Pen Grant D628,633 - Zhang December 7, 2 | 2010-12-07 |
| Pen Grant D616,498 - Zhang May 25, 2 | 2010-05-25 |
| Pen Grant D611,539 - Zhang March 9, 2 | 2010-03-09 |
| Pen Grant D607,932 - Zhang January 12, 2 | 2010-01-12 |
| Pen Grant D607,933 - Zhang January 12, 2 | 2010-01-12 |
| Pen Grant D606,587 - Zhang December 22, 2 | 2009-12-22 |
| Dual-tip pen Grant D605,694 - Zhang December 8, 2 | 2009-12-08 |
| Pen Grant D605,698 - Zhang December 8, 2 | 2009-12-08 |
| Pen Grant D605,701 - Zhang December 8, 2 | 2009-12-08 |
| Pen Grant D601,197 - Zhang September 29, 2 | 2009-09-29 |
| Pen Grant D598,954 - Wang , et al. August 25, 2 | 2009-08-25 |
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