Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11712771 | Power tool dust collector | Michael R. Brewster, Tsz Kin Wong, Chin Hung Lam, Brian Wattenbach, Brandon L. Verbrugge +2 more | 2023-08-01 |
| 10695880 | Power tool dust collector | Michael R. Brewster, Tsz Kin Wong, Chin Hung Lam, Brian Wattenbach, Brandon L. Verbrugge +2 more | 2020-06-30 |
| 9776296 | Power tool dust collector | Michael R. Brewster, Tsz Kin Wong, Chin Hung Lam, Brian Wattenbach, Brandon L. Verbrugge +2 more | 2017-10-03 |
| 8967923 | Dust suction device for drilling machine | Oliver Lerch | 2015-03-03 |
| 7661485 | Hammer drill | Rainer Kumpf | 2010-02-16 |
| D480937 | Hammer drill | Rainer Kumpf | 2003-10-21 |
| 5437465 | Tool changing device on a hand-operated machine tool | Dieter Hirt | 1995-08-01 |