Chung; Yen-Chao
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chung; Yen-Chao.The latest application filed is for "spring back safety and film cutter".
- Chung; Yen-Chao - Taipei TW
| Patent | Date |
|---|---|
| Spring back safety and film cutter Grant 9,956,695 - Chung , et al. May 1, 2 | 2018-05-01 |
| Pocket safety cutter Grant 9,539,733 - Jennings , et al. January 10, 2 | 2017-01-10 |
| Spring Back Safety and Film Cutter App 20150202781 - Chung; Yen-Chao ; et al. | 2015-07-23 |
| Spring back safety and film cutter Grant 8,819,942 - Chung , et al. September 2, 2 | 2014-09-02 |
| Pocket Safety Cutter App 20140123501 - Jennings; Dale E. ; et al. | 2014-05-08 |
| Pocket safety cutter Grant 8,443,522 - Jennings , et al. May 21, 2 | 2013-05-21 |
| Spring Back Safety and Film Cutter App 20120216412 - Chung; Yen-Chao ; et al. | 2012-08-30 |
| Pocket Safety Cutter App 20120047747 - Jennings; Dale E. ; et al. | 2012-03-01 |
| Spring back safety and film cutter Grant 8,069,571 - Chung , et al. December 6, 2 | 2011-12-06 |
| Pocket safety cutter Grant 8,006,389 - Jennings , et al. August 30, 2 | 2011-08-30 |
| Spring Back Safety and Film Cutter App 20090266210 - Chung; Yen-Chao ; et al. | 2009-10-29 |
| Pocket Safety Cutter App 20080289190 - Jennings; Dale E. ; et al. | 2008-11-27 |
| Carpenter knife Grant D509,419 - Chung September 13, 2 | 2005-09-13 |
| Hand held cutter Grant 5,862,596 - Chung January 26, 1 | 1999-01-26 |
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