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USPTO Patent Rankings Data through Dec 31, 2025
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Harold E. Folkerth — 6 Patents

SHShopsmith: 6 patents #4 of 27Top 15%
Dayton, OH: #304 of 1,892 inventorsTop 20%
Ohio: #13,600 of 73,341 inventorsTop 20%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Harold E. Folkerth has been granted 6 US patents while listed as an inventor at Shopsmith. The first was granted in 1985 and the most recent in April 1991. Harold E. Folkerth ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Harold E. Folkerth in Dayton, OH, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5004027 Biscuit joiner John G. Legler, David D. Flora, Barry L. Hile 1991-04-02 $272,000
4926916 Biscuit joiner John G. Legler, David D. Flora 1990-05-22 $199,000
4721023 Saw guard system Robert L. Bartlett, John G. Legler 1988-01-26 $150,000
D292407 Combined guard and dust collector for a table saw John G. Legler, Robert L. Bartlett 1987-10-20
D281328 Saw table Edward A. Irelan, John G. Legler, Garry W. Woods 1985-11-12
4494591 Tilting table for a woodworking tool 1985-01-22 $115,000