Cheung; Benson Chun Kit
Patent Applications and Registrations
Patent applications and USPTO patent grants for Cheung; Benson Chun Kit.The latest application filed is for "handheld vacuum cleaner".
- Cheung; Benson Chun Kit - Kwai Chung HK
- Cheung; Benson Chun Kit - Kowloon HK
- Cheung; Benson Chun Kit - Hong Kong CN
| Patent | Date |
|---|---|
| Handheld vacuum cleaner Grant 11,419,465 - Yuen , et al. August 23, 2 | 2022-08-23 |
| Handheld vacuum cleaner Grant 11,363,921 - Yuen , et al. June 21, 2 | 2022-06-21 |
| Handheld Vacuum Cleaner App 20190183304 - YUEN; Alvin Au Yeuk ; et al. | 2019-06-20 |
| Handheld Vacuum Cleaner App 20190183303 - YUEN; Alvin Au Yeuk ; et al. | 2019-06-20 |
| Handheld Vacuum Cleaner App 20190183300 - YUEN; Alvin Au Yeuk ; et al. | 2019-06-20 |
| Hammer drill Grant D521,337 - Cheung , et al. May 23, 2 | 2006-05-23 |
| Battery charger Grant D514,507 - Cheung , et al. February 7, 2 | 2006-02-07 |
| Battery charger Grant D506,436 - Cheung , et al. June 21, 2 | 2005-06-21 |
| Battery pack Grant D504,394 - Cheung , et al. April 26, 2 | 2005-04-26 |
| Drill Grant D501,385 - Cheung , et al. February 1, 2 | 2005-02-01 |
| Speed drill Grant D494,034 - Cheung August 10, 2 | 2004-08-10 |
| Hammer drill Grant D491,438 - Cheung , et al. June 15, 2 | 2004-06-15 |
| Hammer drill Grant D488,978 - Cheung April 27, 2 | 2004-04-27 |
| Pivot driver Grant D476,542 - Chunn , et al. July 1, 2 | 2003-07-01 |
| Stick driver Grant D472,779 - Chunn , et al. April 8, 2 | 2003-04-08 |
| Pivot driver Grant D472,439 - Chunn , et al. April 1, 2 | 2003-04-01 |
| Stick driver Grant D467,146 - Chunn , et al. December 17, 2 | 2002-12-17 |
| Keyless drill chuck Grant D462,249 - Chunn , et al. September 3, 2 | 2002-09-03 |
| Keyless drill chuck Grant D461,696 - Chunn , et al. August 20, 2 | 2002-08-20 |
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