Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8205681 | Aeration core processor | Gaylord M. Pahl, Jack R. Gust, David J. Scherbring | 2012-06-26 |
| 6038989 | Turf injector with ground slitting knives | David J. Scherbring | 2000-03-21 |
| 5322418 | High pressure liquid pump apparatus and pumping method | — | 1994-06-21 |
| 5207168 | Method and apparatus for treating turf | — | 1993-05-04 |
| 5154241 | Sand trap maintenance machine | David J. Scherbring | 1992-10-13 |
| 5119744 | Method and apparatus for treating turf | — | 1992-06-09 |
| 5101745 | Method and apparatus for soil cultivation by high pressure injection of fluids | Dean A. Podevels, Dana R. Lonn, David J. Scherbring, John M. Beattie, Charles C. Holley +1 more | 1992-04-07 |
| 4694528 | Convertible vacuum-blower | Wilbur J. Hampel, Edward A. Rogers | 1987-09-22 |
| 4374465 | Attachment for rotary lawn mower | — | 1983-02-22 |
| 4335567 | Bagging filament mower | — | 1982-06-22 |
| 4325195 | Snow thrower | — | 1982-04-20 |
| 4293041 | Power cultivator with debris excluding barrier and scraper | Ronald J. Holmstadt | 1981-10-06 |
| 4282653 | Cutting element for vegetation line trimmers | Henry B. Tillotson | 1981-08-11 |
| 4280276 | Reciprocating cutter | Thomas F. Kruzel | 1981-07-28 |
| 4250695 | Powered lawn care and cultivating implement | Henry B. Tillotson | 1981-02-17 |
| 4235068 | Filament mower | — | 1980-11-25 |
| 4227280 | Vacuum/blower attachment for filament trimmer | — | 1980-10-14 |