Inventor · disambiguated record
Keith Warren
Also filed as: WARREN KEITH · WARREN KEITH O
23 granted patents·4 pending applications·523 citations·filing 1983–2023
95Inventor score
Top patents by PatentIndex Score
27 records- 0193US5503285AMethod for forming an electrostatically force balanced silicon accelerometerLITTON SYSTEMS INC·Filed 1993·Granted Apr 2, 1996·73 cites·12 claims
- 0292US4522072AElectromechanical transducer strain sensor arrangement and constructionINSOUTH MICROSYSTEMS INC·Filed 1983·Granted Jun 11, 1985·111 cites·43 claims
- 0390US10036118B2Wire element arrangement in an energy recovery deviceEXERGYN LTD·Filed 2015·Granted Jul 31, 2018·9 cites·20 claims
- 0490US5840199AMethod for purging a multi-layer sacrificial etched silicon substrateLITTON SYSTEMS INC·Filed 1997·Granted Nov 24, 1998·84 cites·12 claims
- 0588USD500411SFabricVUITTON LOUIS SA·Filed 2004·Granted Jan 4, 2005·35 cites·1 claims
- 0688US5476819ASubstrate anchor for undercut silicon on insulator microstructuresLITTON SYSTEMS INC·Filed 1994·Granted Dec 19, 1995·60 cites·21 claims
- 0779US5142921AForce balance instrument with electrostatic charge controlLITTON SYSTEMS INC·Filed 1990·Granted Sep 1, 1992·38 cites·32 claims
- 0877US5446616AElectrode structure and method for anodically-bonded capacitive sensorsLITTON SYSTEMS INC·Filed 1994·Granted Aug 29, 1995·34 cites·22 claims
- 0969US9382706B2Method of retrofitting a buildingWARREN KEITH·Filed 2015·Granted Jul 5, 2016·3 cites·20 claims
- 1068US10563640B2Optimised diametric contraction of a SMA element for use in an energy recovery deviceEXERGYN LTD·Filed 2015·Granted Feb 18, 2020·1 cites·3 claims
- 1164US9074366B2Method of retrofitting a buildingWARREN KEITH·Filed 2012·Granted Jul 7, 2015·2 cites·11 claims
- 1261US9885344B2Energy recovery deviceEXERGYN LTD·Filed 2012·Granted Feb 6, 2018·1 cites·20 claims
- 1361US5850042AElectrostatically force balanced silicon accelerometerLITTON SYSTEMS INC·Filed 1995·Granted Dec 15, 1998·18 cites·8 claims
- 1460US5006923AStackable multilayer substrate for mounting integrated circuitsLITTON SYSTEMS INC·Filed 1989·Granted Apr 9, 1991·26 cites·20 claims
- 1559US2025215862A1Solid State Thermodynamic CycleEXERGYN LTD·Filed 2023·Application pending·0 cites
- 1657US12276266B2Engine operating using a compression SMA materialEXERGYN LTD·Filed 2022·Granted Apr 15, 2025·0 cites·11 claims
- 1756US12140346B2System and method for work recovery in a heat pumpEXERGYN LTD·Filed 2020·Granted Nov 12, 2024·0 cites·8 claims
- 1856US12085315B2Elastocaloric heat recovery in a heat pump / refrigeration system using a pump mechanismEXERGYN LTD·Filed 2020·Granted Sep 10, 2024·0 cites·4 claims
- 1955US5497660ADigital force balanced instrumentLITTON SYSTEMS INC·Filed 1994·Granted Mar 12, 1996·15 cites·29 claims
- 2053US2018216604A1Energy recovery deviceEXERGYN LTD·Filed 2018·Application pending·0 cites
- 2152US12298450B2Shape memory alloy heat pumpEXERGYN LTD·Filed 2021·Granted May 13, 2025·0 cites·13 claims
- 2248US12072125B2System and method for maximising heat output and temperature delta in a SMA heat pump/refrigeration systemEXERGYN LTD·Filed 2020·Granted Aug 27, 2024·0 cites·13 claims
- 2346US10288049B2Method and system for efficiency increase in an energy recovery deviceEXERGYN LTD·Filed 2016·Granted May 14, 2019·0 cites·20 claims
- 2444US9995289B2Bundle holder for use in an energy recovery deviceEXERGYN LTD·Filed 2015·Granted Jun 12, 2018·0 cites·9 claims
- 2544US2020190645A1Wire forming of Shape-Memory Alloys (SMAs) or Negative Thermal Expansion (NTE) materials for use in an Energy Recovery SystemEXERGYN LTD·Filed 2018·Application pending·0 cites
- 2642US5094969AMethod for making a stackable multilayer substrate for mounting integrated circuitsLITTON SYSTEMS INC·Filed 1990·Granted Mar 10, 1992·13 cites·9 claims
- 2736US2019145592A1Solar powered recycling and waste stationLAWSON GREG·Filed 2018·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →