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USPTO Patent Rankings Data through Dec 31, 2025
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Robert C. Comer — 17 Patents

TTThe Toro: 17 patents #17 of 552Top 4%
Hopkins, MN: #16 of 249 inventorsTop 7%
Minnesota: #4,335 of 52,454 inventorsTop 9%
Overall (All Time): #263,971 of 4,157,543Top 7%
17 Patents All Time
Robert C. Comer has been granted 17 US patents while listed as an inventor at The Toro. The first was granted in 1980 and the most recent in June 2012. Robert C. Comer ranks #263,971 of 4,157,543 US inventors in our database (top 6.3%). Patent records list Robert C. Comer in Hopkins, MN, US.

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8205681 Aeration core processor Gaylord M. Pahl, Jack R. Gust, David J. Scherbring 2012-06-26 $3,316,000
6038989 Turf injector with ground slitting knives David J. Scherbring 2000-03-21 $1,367,000
5322418 High pressure liquid pump apparatus and pumping method 1994-06-21 $1,967,000
5207168 Method and apparatus for treating turf 1993-05-04 $1,730,000
5154241 Sand trap maintenance machine David J. Scherbring 1992-10-13 $1,257,000
5119744 Method and apparatus for treating turf 1992-06-09 $1,420,000
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 $1,570,000
4694528 Convertible vacuum-blower Wilbur J. Hampel, Edward A. Rogers 1987-09-22 $834,000
4374465 Attachment for rotary lawn mower 1983-02-22 $701,000
4335567 Bagging filament mower 1982-06-22 $106,000
4325195 Snow thrower 1982-04-20 $119,000
4293041 Power cultivator with debris excluding barrier and scraper Ronald J. Holmstadt 1981-10-06 $345,000
4282653 Cutting element for vegetation line trimmers Henry B. Tillotson 1981-08-11 $451,000
4280276 Reciprocating cutter Thomas F. Kruzel 1981-07-28 $512,000
4250695 Powered lawn care and cultivating implement Henry B. Tillotson 1981-02-17 $586,000
4235068 Filament mower 1980-11-25 $731,000
4227280 Vacuum/blower attachment for filament trimmer 1980-10-14 $429,000