Inventor · disambiguated record
Charles Perry Butterfield, Jr.
Also filed as: BUTTERFIELD CHARLES PERRY · BUTTERFIELD JR CHARLES PERRY
3 granted patents·1 pending application·474 citations·filing 2012–2019
79Inventor score
Files withBOULDER WIND POWER INC4
Top patents by PatentIndex Score
4 records- 0197US10193429B2Air gap control systems and methodsBOULDER WIND POWER INC·Filed 2016·Granted Jan 29, 2019·400 cites·12 claims
- 0297US9479038B2Air gap control systems and methodsBOULDER WIND POWER INC·Filed 2013·Granted Oct 25, 2016·22 cites·4 claims
- 0397US8362731B2Air gap control systems and methodsBOULDER WIND POWER INC·Filed 2012·Granted Jan 29, 2013·52 cites·26 claims
- 0467US2019245421A1Air gap control systems and methodsBOULDER WIND POWER INC·Filed 2019·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →