Inventor · disambiguated record
John C. Hansen
Also filed as: HANSEN JOHN · HANSEN JOHN C · HANSEN JOHN FALCK
40 granted patents·4 pending applications·927 citations·filing 1982–2019
98Inventor score
Files withMINNESOTA MINING & MFG12JOHNSON CONTROLS TECH CO7HANSEN JOHN C3DE LARMINAT PAUL2DOLL JR MARTIN LUTHER2
Top patents by PatentIndex Score
44 records- 0195US8302426B2Heat exchangerDE LARMINAT PAUL·Filed 2010·Granted Nov 6, 2012·17 cites·15 claims
- 0294US8193756B2Variable speed drive for permanent magnet motorJADRIC IVAN·Filed 2009·Granted Jun 5, 2012·38 cites·19 claims
- 0394US4788339APerfluoroaminoethersMINNESOTA MINING & MFG·Filed 1986·Granted Nov 29, 1988·44 cites·21 claims
- 0494US4660386ADiagnostic system for detecting faulty sensors in liquid chiller air conditioning systemHANSEN JOHN C·Filed 1985·Granted Apr 28, 1987·133 cites·10 claims
- 0594US4653280ADiagnostic system for detecting faulty sensors in a refrigeration systemHANSEN JOHN C·Filed 1985·Granted Mar 31, 1987·171 cites·7 claims
- 0692US6386272B1Device and method for detecting fouling in a shell and tube heat exchangerYORK INT CORP·Filed 2000·Granted May 14, 2002·60 cites·32 claims
- 0789US8863551B2Heat exchangerDE LARMINAT PAUL·Filed 2009·Granted Oct 21, 2014·10 cites·11 claims
- 0889US8516850B2Motor cooling applicationsJADRIC IVAN·Filed 2009·Granted Aug 27, 2013·21 cites·17 claims
- 0987US4739103APerfluorocycloalkane carbonyl fluorides and their derivativesMINNESOTA MINING & MFG·Filed 1985·Granted Apr 19, 1988·22 cites·3 claims
- 1086US5669225AVariable speed control of a centrifugal chiller using fuzzy logicYORK INT CORP·Filed 1996·Granted Sep 23, 1997·76 cites·14 claims
- 1186US5104034APerfluoro-n,n,n',n-tetrapropyldiaminopropane and use thereof in vapor phase heatingMINNESOTA MINING & MFG·Filed 1991·Granted Apr 14, 1992·25 cites·4 claims
- 1284US8820105B2Medium voltage power controllerJOHNSON CONTROLS TECH CO·Filed 2013·Granted Sep 2, 2014·4 cites·20 claims
- 1384US6247295B1Hydro-mechanical transmission system for an agricultural combineNEW HOLLAND NORTH AMERICA INC·Filed 1999·Granted Jun 19, 2001·41 cites·18 claims
- 1484US5573654AProcess for making hexafluoropropane and perfluoropropaneMINNESOTA MINING & MFG·Filed 1994·Granted Nov 12, 1996·23 cites·12 claims
- 1583USD296776SControl panel for an air conditioning systemYORK INT CORPORATION·Filed 1985·Granted Jul 19, 1988·34 cites·1 claims
- 1682US10707800B2Multi-pulse constant voltage transformer for a variable speed drive in chiller applicationsJOHNSON CONTROLS TECH CO·Filed 2018·Granted Jul 7, 2020·3 cites·20 claims
- 1781US8286439B2Variable speed drive for permanent magnet motorWU ZHIQIAO·Filed 2009·Granted Oct 16, 2012·6 cites·20 claims
- 1880US8353174B1Control method for vapor compression systemJOHNSON CONTROLS TECH CO·Filed 2009·Granted Jan 15, 2013·5 cites·12 claims
- 1979US5159105AHigher pentafluorosulfanyl-fluoroaliphatic carbonyl and sulfonyl fluorides, and derivativesMINNESOTA MINING & MFG·Filed 1990·Granted Oct 27, 1992·25 cites·27 claims
- 2076US8434323B2Motor cooling applicationsWELCH ANDREW M·Filed 2009·Granted May 7, 2013·17 cites·18 claims
- 2174US6110976APerfluoro (alkoxycycloalkane) carbonyl fluoride compositions and their use3M INNOVATIVE PROPERTIES CO·Filed 1998·Granted Aug 29, 2000·12 cites·5 claims
- 2270US10075117B2Multi-pulse constant voltage transformer for a variable speed drive in chiller applicationsJOHNSON CONTROLS TECH CO·Filed 2015·Granted Sep 11, 2018·1 cites·20 claims
- 2370US4539632AProgrammable maintenance timer systemBORG WARNER·Filed 1982·Granted Sep 3, 1985·60 cites·4 claims
- 2468US8336323B2Variable speed drive with pulse-width modulated speed controlBORISOV KONSTANTIN·Filed 2009·Granted Dec 25, 2012·5 cites·17 claims
- 2566US11480373B2Variable speed drive control for chiller coast-throughJOHNSON CONTROLS TECH CO·Filed 2019·Granted Oct 25, 2022·0 cites·20 claims
- 2664US5318674AProcess for preparing perfluoroalkanesulfonyl fluoridesMINNESOTA MINING & MFG·Filed 1993·Granted Jun 7, 1994·16 cites·13 claims
- 2759US2009178790A1Vapor compression systemJOHNSON CONTROLS TECH CO·Filed 2009·Application pending·0 cites
- 2857US8258664B2Permanent magnet synchronous motor and drive systemWARNER JUSTIN D·Filed 2009·Granted Sep 4, 2012·3 cites·21 claims
- 2955US8590329B2Medium voltage power controllerNORBECK DEAN K·Filed 2012·Granted Nov 26, 2013·0 cites·24 claims
- 3053US5049670APerfluoroaminoethersMINNESOTA MINING & MFG·Filed 1990·Granted Sep 17, 1991·8 cites·9 claims
- 3152US5474657APreparation of F-alkyl F-isobutyl ethers by electrochemical fluorinationMINNESOTA MINING & MFG·Filed 1994·Granted Dec 12, 1995·8 cites·8 claims
- 3250US10337781B2Variable speed drive control for chiller coast-throughJOHNSON CONTROLS TECH CO·Filed 2013·Granted Jul 2, 2019·0 cites·16 claims
- 3349US5286352AElectrochemical production of higher pentafluorosulfonyl acid fluoridesMINNESOTA MINING & MFG·Filed 1992·Granted Feb 15, 1994·6 cites·3 claims
- 3448US10568261B2Dynamic combine fire risk index and displayCNH IND AMERICA LLC·Filed 2017·Granted Feb 25, 2020·0 cites·20 claims
- 3548US5756000APerfluoro(alkoxycycloalkane)carbonyl fluoride compositions and their useMINNESOTA MINING & MFG·Filed 1996·Granted May 26, 1998·3 cites·20 claims
- 3647US8109104B2System and method for detecting decreased performance in a refrigeration systemDOLL JR MARTIN LUTHER·Filed 2004·Granted Feb 7, 2012·6 cites·4 claims
- 3747US2007020074A1Containerized transport and storage systemHANSEN JOHN·Filed 2005·Application pending·0 cites
- 3846US2005000460A1Feeding trough for transportOK PLAST·Filed 2003·Application pending·0 cites
- 3946US2011259023A1System and method for detecting decreased performance in a refrigeration systemDOLL JR MARTIN LUTHER·Filed 2011·Application pending·0 cites
- 4041US4586865ARotatable discharge conveyor for a belly-dump trailerHANSEN JOHN C·Filed 1985·Granted May 6, 1986·11 cites·8 claims
- 4140US5427656AProcess for preparing branched perfluorochemicalsMINNESOTA MINING & MFG·Filed 1994·Granted Jun 27, 1995·5 cites·11 claims
- 4233US5486271AProcess for preparing perfluoroalkanesulfonyl fluoridesMINNESOTA MINING & MFG·Filed 1994·Granted Jan 23, 1996·2 cites·20 claims
- 4333US4929725APerfluoroaminoethersMOORE GEORGE G I·Filed 1988·Granted May 29, 1990·1 cites·7 claims
- 4426US4584845AControl system for liquid chilled by an evaporatorBORG WARNER AIR CONDITIONING I·Filed 1985·Granted Apr 29, 1986·5 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →