Inventor · disambiguated record
Mark J. Underhill
Also filed as: UNDERHILL MARK · UNDERHILL MARK J · UNDERHILL MARK JAMES
9 granted patents·1 pending application·65 citations·filing 1987–2022
84Inventor score
Top patents by PatentIndex Score
10 records- 0176US4760324ANon-dissipative snubber circuit for high-efficiency switching power suppliesRAYTHEON CO·Filed 1987·Granted Jul 26, 1988·36 cites·9 claims
- 0269US8176417B2Constructing and maintaining web sitesUNDERHILL MARK·Filed 2009·Granted May 8, 2012·10 cites·14 claims
- 0365US12497276B2Autonomous load moving electric vehicleMOOG INC·Filed 2022·Granted Dec 16, 2025·0 cites·22 claims
- 0465US11159102B2Active voltage bus system and methodMOOG INC·Filed 2013·Granted Oct 26, 2021·3 cites·13 claims
- 0562US12267005B2Active voltage bus system and methodMOOG INC·Filed 2021·Granted Apr 1, 2025·0 cites·15 claims
- 0652US12368839B2Camera system in situation built-in-testMOOG INC·Filed 2021·Granted Jul 22, 2025·0 cites·19 claims
- 0747US5602452ARegeneration current-spike limiter for six-step motor drivesMOOG INC·Filed 1995·Granted Feb 11, 1997·14 cites·5 claims
- 0842US8390220B2Device for controlling regeneration energy in an electronic motor drive having an LC filter to reduce conducted emissions from the motor back to the voltage sourceUNDERHILL MARK J·Filed 2008·Granted Mar 5, 2013·2 cites·7 claims
- 0937US2012210208A1Constructing And Maintaining Web SitesUNDERHILL MARK·Filed 2012·Application pending·0 cites
- 1027US10161136B2Autonomous roofing removal machineUNDERHILL MARK JAMES·Filed 2016·Granted Dec 25, 2018·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →