Berg; David W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Berg; David W..The latest application filed is for "flag release system and method".
- Berg; David W. - Leander TX
- Berg; David W. - Plymouth MN
- Berg; David W. - Wayzata MN
- Berg; David W. - Minneapolis MN
| Patent | Date |
|---|---|
| Flag release system and method Grant 11,083,942 - Berg , et al. August 10, 2 | 2021-08-10 |
| Flag Release System And Method App 20200114234 - Berg; David W. ; et al. | 2020-04-16 |
| Variable diameter cleaning brush Grant 6,125,495 - Berg , et al. October 3, 2 | 2000-10-03 |
| Electromagnetic filter cleaning system Grant 6,117,200 - Berg , et al. September 12, 2 | 2000-09-12 |
| Curing of floor coatings using long and short wave ultraviolet radiation Grant 6,096,383 - Berg , et al. August 1, 2 | 2000-08-01 |
| Powered utility cart having engagement adapters Grant 6,070,679 - Berg , et al. June 6, 2 | 2000-06-06 |
| Surface maintenance machine with improved dust collection system Grant 5,940,929 - Berg August 24, 1 | 1999-08-24 |
| Sweeper with hopper heat shield Grant 5,884,353 - Berg , et al. March 23, 1 | 1999-03-23 |
| Vacuum powered scrub head Grant 5,088,149 - Berg , et al. February 18, 1 | 1992-02-18 |
| Disc brush suspension for a floor maintenance machine Grant 4,729,141 - Berg , et al. March 8, 1 | 1988-03-08 |
| Power sweeper Grant D273,620 - Kimzey , et al. April 24, 1 | 1984-04-24 |
| Seal assembly Grant 4,121,840 - Berg October 24, 1 | 1978-10-24 |
| Wheel brake assembly Grant 4,053,036 - Branham , et al. October 11, 1 | 1977-10-11 |
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