Wolbrink; David W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Wolbrink; David W..The latest application filed is for "downdraft range ventilator".
- Wolbrink; David W. - Hartford WI
| Patent | Date |
|---|---|
| Downdraft range ventilator Grant 5,062,410 - Sarnosky , et al. November 5, 1 | 1991-11-05 |
| Exhaust fan for bathrooms and the like Grant 4,867,640 - Penlesky , et al. September 19, 1 | 1989-09-19 |
| Combination deodorizer and light Grant D288,007 - Jonas , et al. January 27, 1 | 1987-01-27 |
| Filter for ductless range hood Grant 4,610,705 - Sarnosky , et al. September 9, 1 | 1986-09-09 |
| Fan for ventilation Grant 4,594,940 - Wolbrink , et al. June 17, 1 | 1986-06-17 |
| Mounting device for range hoods Grant 4,465,256 - Wolbrink , et al. August 14, 1 | 1984-08-14 |
| Conveying apparatus including tilting support structures Grant 4,102,448 - Wolbrink , et al. July 25, 1 | 1978-07-25 |
| Drive mechanism for trash compactors Grant 4,100,850 - Wolbrink , et al. July 18, 1 | 1978-07-18 |
| Receptacle for trash compactors Grant 4,064,798 - Wolbrink , et al. December 27, 1 | 1977-12-27 |
| Deodorizer for trash compactors Grant 4,047,775 - Wolbrink September 13, 1 | 1977-09-13 |
| Latch for trash compactors Grant 4,018,148 - Wolbrink April 19, 1 | 1977-04-19 |
| Rotary loading apparatus Grant 4,003,461 - Speaker , et al. January 18, 1 | 1977-01-18 |
| Cabinet arrangement for trash compactors Grant 4,002,387 - Wolbrink January 11, 1 | 1977-01-11 |
| Blower Wheel Grant 3,846,043 - Wolbrink , et al. November 5, 1 | 1974-11-05 |
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