Ma; Kam Hoi
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ma; Kam Hoi.The latest application filed is for "surface cleaning apparatus".
- Ma; Kam Hoi - Hong Kong CN
- Ma; Kam Hoi - SunShine CN
| Patent | Date |
|---|---|
| Surface Cleaning Apparatus App 20220071466 - Xia; Jincheng ; et al. | 2022-03-10 |
| Surface cleaning apparatus Grant 11,241,134 - Xia , et al. February 8, 2 | 2022-02-08 |
| Surface cleaning apparatus Grant 11,122,949 - Xia , et al. September 21, 2 | 2021-09-21 |
| Surface cleaning apparatus Grant 11,096,543 - Xia , et al. August 24, 2 | 2021-08-24 |
| Surface cleaning apparatus Grant 11,096,542 - Xia , et al. August 24, 2 | 2021-08-24 |
| Surface cleaning apparatus Grant 11,096,541 - Xia , et al. August 24, 2 | 2021-08-24 |
| Surface cleaning apparatus Grant 11,096,540 - Xia , et al. August 24, 2 | 2021-08-24 |
| Surface cleaning apparatus Grant 11,096,539 - Xia , et al. August 24, 2 | 2021-08-24 |
| Surface cleaning apparatus Grant 11,089,933 - Xia , et al. August 17, 2 | 2021-08-17 |
| Surface Cleaning Apparatus App 20210153708 - Xia; Jincheng ; et al. | 2021-05-27 |
| Surface Cleaning Apparatus App 20210106199 - Xia; Jincheng ; et al. | 2021-04-15 |
| Surface Cleaning Apparatus App 20210106200 - Xia; Jincheng ; et al. | 2021-04-15 |
| Surface Cleaning Apparatus App 20210106198 - Xia; Jincheng ; et al. | 2021-04-15 |
| Surface cleaning apparatus Grant 10,925,455 - Xia , et al. February 23, 2 | 2021-02-23 |
| Surface Cleaning Apparatus App 20210045606 - Xia; Jincheng ; et al. | 2021-02-18 |
| Surface Cleaning Apparatus App 20210045607 - Xia; Jincheng ; et al. | 2021-02-18 |
| Surface Cleaning Apparatus App 20210045608 - Xia; Jincheng ; et al. | 2021-02-18 |
| Surface Cleaning Apparatus App 20210045609 - Xia; Jincheng ; et al. | 2021-02-18 |
| Surface Cleaning Apparatus App 20210045610 - Xia; Jincheng ; et al. | 2021-02-18 |
| Surface cleaning apparatus Grant 10,820,769 - Xia , et al. November 3, 2 | 2020-11-03 |
| Surface Cleaning Apparatus App 20180325341 - Xia; Jincheng ; et al. | 2018-11-15 |
| Surface cleaning apparatus Grant 10,092,155 - Xia , et al. October 9, 2 | 2018-10-09 |
| Surface Cleaning Apparatus App 20170119225 - Xia; Jincheng ; et al. | 2017-05-04 |
| Vacuum cleaner with level control Grant 7,293,324 - Chui , et al. November 13, 2 | 2007-11-13 |
| Vacuum cleaner App 20050060832 - Chui, Kam Lun ; et al. | 2005-03-24 |
| Floor cleaning unit with a brush assembly Grant 6,640,386 - Morgan , et al. November 4, 2 | 2003-11-04 |
| Floor cleaning device with a recovery tank Grant 6,629,332 - Morgan , et al. October 7, 2 | 2003-10-07 |
| A Floor Cleaning Device With A Recovery Tank App 20030051306 - Morgan, Jeffery A. ; et al. | 2003-03-20 |
| Floor cleaning unit with a brush assembly App 20030051308 - Morgan, Jeffery A. ; et al. | 2003-03-20 |
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