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Eugene E. Calkins — 3 Patents

BLBlount: 2 patents #59 of 164Top 40%

Salem, OR: #110 of 493 inventorsTop 25%

Oregon: #10,287 of 28,073 inventorsTop 40%

Overall (All Time): #1,328,092 of 4,157,543Top 35%

3 Patents All Time

Eugene E. Calkins has been granted 3 US patents while listed as an inventor at Blount. The first was granted in 1989 and the most recent in April 2019. Eugene E. Calkins ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Eugene E. Calkins in Salem, OR, US.

Patents per Year

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
10264801	Shellfish gauge and cleaner	Anthony S. Thiessen	2019-04-23
6049986	Chain saw guide bar equipped with chain tensioner	Kent L. Huntington, Mark D. Lamey	2000-04-18	$4,729,000
4876796	Sprocket assembly for chain saws	Michael V. Petrovich	1989-10-31

Eugene E. Calkins — 3 Patents

Patents per Year

Issued Patents All Time

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