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Robert D. Johnson — 1 Patent in 2018

SUSunpower: 1 patents #53 of 141Top 40%

Mitchell, SD: #3 of 10 inventorsTop 30%

South Dakota: #50 of 233 inventorsTop 25%

Overall (2018): #259,983 of 503,207Top 55%

1 Patents 2018

Issued Patents 2018

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
9866030	Automatic voltage regulation for photovoltaic systems	Lars Johnson	2018-01-09	$6,160,000