Inventor · disambiguated record
Frank S. Wallis
Also filed as: WALLIS FRANK · WALLIS FRANK S · WALLIS FRANK SHUE
44 granted patents·6 pending applications·862 citations·filing 1976–2024
98Inventor score
Files withCOPELAND CORP22EMERSON CLIMATE TECHNOLOGIES11EMERSON CLIMATE TECH RETAIL SOLUTIONS INC5COPELAND LP4WALLIS FRANK S3
Top patents by PatentIndex Score
50 records- 0196US8964338B2System and method for compressor motor protectionEMERSON CLIMATE TECHNOLOGIES·Filed 2013·Granted Feb 24, 2015·15 cites·23 claims
- 0296US6176686B1Scroll machine with capacity modulationCOPELAND CORP·Filed 1999·Granted Jan 23, 2001·164 cites·19 claims
- 0396US5607288AScroll machine with reverse rotation protectionCOPELAND CORP·Filed 1994·Granted Mar 4, 1997·123 cites·18 claims
- 0492US6171084B1Discharge valveCOPELAND CORP·Filed 1999·Granted Jan 9, 2001·55 cites·4 claims
- 0592US5803716AScroll machine with reverse rotation protectionCOPELAND CORP·Filed 1996·Granted Sep 8, 1998·69 cites·8 claims
- 0690US9476414B2Variable capacity reciprocating compressorEMERSON CLIMATE TECHNOLOGIES·Filed 2014·Granted Oct 25, 2016·7 cites·23 claims
- 0790US5591014AScroll machine with reverse rotation protectionCOPELAND CORP·Filed 1993·Granted Jan 7, 1997·58 cites·68 claims
- 0888US9590413B2System and method for compressor motor protectionEMERSON CLIMATE TECHNOLOGIES·Filed 2015·Granted Mar 7, 2017·3 cites·17 claims
- 0987US10371406B2Maintenance and diagnostics for refrigeration systemsEMERSON CLIMATE TECH RETAIL SOLUTIONS INC·Filed 2017·Granted Aug 6, 2019·4 cites·14 claims
- 1087US6428292B1Discharge valveCOPELAND CORP·Filed 2000·Granted Aug 6, 2002·28 cites·15 claims
- 1185US9876346B2System and method for compressor motor protectionEMERSON CLIMATE TECHNOLOGIES·Filed 2017·Granted Jan 23, 2018·2 cites·20 claims
- 1284US6582211B2Discharge valveCOPELAND CORP·Filed 2002·Granted Jun 24, 2003·23 cites·5 claims
- 1383US8308455B2Unloader system and method for a compressorWALLIS FRANK S·Filed 2010·Granted Nov 13, 2012·5 cites·27 claims
- 1481US8157538B2Capacity modulation system for compressor and methodWALLIS FRANK S·Filed 2008·Granted Apr 17, 2012·7 cites·36 claims
- 1580US10627146B2Liquid slugging detection and protectionEMERSON CLIMATE TECHNOLOGIES·Filed 2017·Granted Apr 21, 2020·3 cites·26 claims
- 1680US10352308B2Reciprocating compressor with vapor injection systemEMERSON CLIMATE TECHNOLOGIES·Filed 2013·Granted Jul 16, 2019·3 cites·18 claims
- 1780US5403172AScroll machine sound attenuationCOPELAND CORP·Filed 1993·Granted Apr 4, 1995·33 cites·14 claims
- 1879US11009250B2Maintenance and diagnostics for refrigeration systemsEMERSON CLIMATE TECH RETAIL SOLUTIONS INC·Filed 2016·Granted May 18, 2021·2 cites·26 claims
- 1978US8496454B2Unloader system and method for a compressorEMERSON CLIMATE TECHNOLOGIES·Filed 2012·Granted Jul 30, 2013·4 cites·20 claims
- 2076US12422177B2Mitigating compressor liquid migration and/or floodback using suction temperature sensor and/or liquid level sensorCOPELAND COMFORT CONTROL LP·Filed 2023·Granted Sep 23, 2025·0 cites·23 claims
- 2176US11346583B2Climate-control system having vapor-injection compressorsEMERSON CLIMATE TECHNOLOGIES·Filed 2019·Granted May 31, 2022·2 cites·13 claims
- 2276US10775085B2Energy management for refrigeration systemsEMERSON CLIMATE TECH RETAIL SOLUTIONS INC·Filed 2017·Granted Sep 15, 2020·1 cites·4 claims
- 2374US6575710B2Compressor with blocked suction capacity modulationCOPELAND CORP·Filed 2001·Granted Jun 10, 2003·14 cites·32 claims
- 2474US5588819ACompliant drive for scroll machineCOPELAND CORP·Filed 1995·Granted Dec 31, 1996·27 cites·39 claims
- 2572US10240836B2Energy management for refrigeration systemsEMERSON CLIMATE TECH RETAIL SOLUTIONS INC·Filed 2016·Granted Mar 26, 2019·1 cites·20 claims
- 2672US5649816AHermetic compressor with heat shieldCOPELAND CORP·Filed 1994·Granted Jul 22, 1997·30 cites·18 claims
- 2767US12215904B2Energy management for refrigeration systemsCOPELAND COLD CHAIN LP·Filed 2020·Granted Feb 4, 2025·0 cites·8 claims
- 2867US4106187ACurved rigid printed circuit boardsMARCONI CO LTD·Filed 1976·Granted Aug 15, 1978·28 cites·9 claims
- 2966US11768019B2Controls and related methods for mitigating liquid migration and/or floodbackEMERSON ELECTRIC CO·Filed 2020·Granted Sep 26, 2023·0 cites·17 claims
- 3065US2019219296A1Maintenance And Diagnostics For Refrigeration SystemsEMERSON CLIMATE TECH RETAIL SOLUTIONS INC·Filed 2019·Application pending·0 cites
- 3161US12092111B2Compressor with oil pumpCOPELAND LP·Filed 2022·Granted Sep 17, 2024·0 cites·21 claims
- 3261US6106251AScroll machine with reverse rotation sound attenuationCOPELAND CORP·Filed 1998·Granted Aug 22, 2000·15 cites·24 claims
- 3361US6044862ACompressor reed valveCOPELAND CORP·Filed 1999·Granted Apr 4, 2000·25 cites·18 claims
- 3460US10145372B2Variable capacity reciprocating compressorEMERSON CLIMATE TECHNOLOGIES·Filed 2016·Granted Dec 4, 2018·0 cites·20 claims
- 3560US2014377089A1Capacity modulation system for compressor and methodEMERSON CLIMATE TECHNOLOGIES·Filed 2014·Application pending·0 cites
- 3658US8807961B2Capacity modulation system for compressor and methodWALLIS FRANK S·Filed 2012·Granted Aug 19, 2014·1 cites·28 claims
- 3756US6116867AScroll machine with capacity modulationCOPELAND CORP·Filed 1998·Granted Sep 12, 2000·14 cites·26 claims
- 3855US6164334AReed valve retentionCOPELAND CORP·Filed 1999·Granted Dec 26, 2000·16 cites·18 claims
- 3955US5772415AScroll machine with reverse rotation sound attenuationCOPELAND CORP·Filed 1996·Granted Jun 30, 1998·12 cites·39 claims
- 4055US5464332ACompressor with motor cooling fanCOPELAND CORP·Filed 1994·Granted Nov 7, 1995·22 cites·17 claims
- 4154US5538408AScroll machine sound attenuationCOPELAND CORP·Filed 1995·Granted Jul 23, 1996·13 cites·10 claims
- 4254US2025389263A1Reciprocating compressor and fluid injection systemCOPELAND LP·Filed 2024·Application pending·0 cites
- 4354US2025389265A1Reciprocating Compressor And Fluid Injection SystemCOPELAND LP·Filed 2024·Application pending·0 cites
- 4454US2025389264A1Reciprocating Compressor And Fluid Injection SystemCOPELAND LP·Filed 2024·Application pending·0 cites
- 4552US5487654AHermetic compressor with heat shieldCOPELAND CORP·Filed 1994·Granted Jan 30, 1996·9 cites·20 claims
- 4650US10280918B2Reciprocating compressor with vapor injection systemEMERSON CLIMATE TECHNOLOGIES·Filed 2016·Granted May 7, 2019·0 cites·22 claims
- 4749US5038891ARefrigerant compressorCOPELAND CORP·Filed 1990·Granted Aug 13, 1991·13 cites·8 claims
- 4845US5358391AHermetic compressor with heat shieldCOPELAND CORP·Filed 1993·Granted Oct 25, 1994·7 cites·10 claims
- 4935US5527167AScroll machine sound attenuationCOPELAND CORP·Filed 1995·Granted Jun 18, 1996·4 cites·24 claims
- 5035US2004202562A1Reciprocating compressorFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →