Chung; Koon For
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chung; Koon For.The latest application filed is for "electric tool".
- Chung; Koon For - Kwai Chung CN
- Chung; Koon For - Anderson SC
- Chung; Koon For - New Territories CN
- Chung; Koon For - Hong Kong CN
- CHUNG; Koon For - Sai Kung HK
| Patent | Date |
|---|---|
| Electric Tool App 20220307518 - Chung; Koon For ; et al. | 2022-09-29 |
| Shredding Mechanism, Shredding Device And Control System And Method Thereof App 20220193692 - Lee; Wai Chung ; et al. | 2022-06-23 |
| Shredding Device App 20220193691 - Lee; Wai Chung ; et al. | 2022-06-23 |
| Long-rod-type Electric Tool App 20220143802 - Wang; Yan Jia ; et al. | 2022-05-12 |
| Hedge Trimmer App 20220078978 - Chung; Koon For ; et al. | 2022-03-17 |
| Hedge trimmer with a dual gear setting Grant 11,185,015 - Chung , et al. November 30, 2 | 2021-11-30 |
| Hand-held Knockout Punch Driver App 20210299902 - Myrhum, JR.; James O. ; et al. | 2021-09-30 |
| Hand-held knockout punch driver Grant 11,034,047 - Myrhum, Jr. , et al. June 15, 2 | 2021-06-15 |
| Electric Blower App 20200096001 - Chung; Koon For | 2020-03-26 |
| Walk-behind Electric Gardening Device App 20200000023 - CHUNG; Koon For | 2020-01-02 |
| Cutting Head Assembly App 20190343039 - Chung; Koon For | 2019-11-14 |
| Hand-held Knockout Punch Driver App 20190224879 - Myrhum, JR.; James O. ; et al. | 2019-07-25 |
| Hand-held knockout punch driver Grant 10,252,438 - Myrhum, Jr. , et al. | 2019-04-09 |
| Hedge Trimmer App 20180325035 - Chung; Koon For ; et al. | 2018-11-15 |
| Hand-held Knockout Punch Driver App 20160303755 - Myrhum, JR.; James O. ; et al. | 2016-10-20 |
| Hand-held knockout punch driver Grant 9,393,711 - Myrhum, Jr. , et al. July 19, 2 | 2016-07-19 |
| Vegetation Trimmer App 20140208597 - ZHOU; Haijun ; et al. | 2014-07-31 |
| Hand-held Knockout Punch Driver App 20120255184 - Myrhum, JR.; James O. ; et al. | 2012-10-11 |
| Sand pad lock for sander Grant 7,510,465 - Chung , et al. March 31, 2 | 2009-03-31 |
| Rotatable chuck Grant 7,481,608 - Zhou , et al. January 27, 2 | 2009-01-27 |
| Rotatable chuck Grant 7,478,979 - Zhou , et al. January 20, 2 | 2009-01-20 |
| Router With Lighted Base App 20080295918 - Chung; Koon For ; et al. | 2008-12-04 |
| Impact rotary tool with drill mode Grant 7,410,007 - Chung , et al. August 12, 2 | 2008-08-12 |
| Sand Pad Lock For Sander App 20070184763 - Chung; Koon For ; et al. | 2007-08-09 |
| Impact rotary tool with drill mode App 20070056756 - Chung; Koon For ; et al. | 2007-03-15 |
| Rotatable chuck App 20060244223 - Zhou; Jin Lin ; et al. | 2006-11-02 |
| Rotatable chuck App 20060244224 - Zhou; Jin Lin ; et al. | 2006-11-02 |
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