Inventor
WALLIS FRANK S
US39 patents
⚠️ This page may combine multiple inventors who share the name “WALLIS FRANK S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
COPELAND CORP
19 patentsUS6176686B1Jan 23, 2001
Scroll machine with capacity modulation
COPELAND CORP164 citations97
US5607288AMar 4, 1997
Scroll machine with reverse rotation protection
COPELAND CORP123 citations97
US5803716ASep 8, 1998
Scroll machine with reverse rotation protection
COPELAND CORP69 citations95
US5591014AJan 7, 1997
Scroll machine with reverse rotation protection
COPELAND CORP58 citations95
US6171084B1Jan 9, 2001
Discharge valve
COPELAND CORP55 citations94
US5588819ADec 31, 1996
Compliant drive for scroll machine
COPELAND CORP27 citations92
US6582211B2Jun 24, 2003
Discharge valve
COPELAND CORP23 citations91
US6428292B1Aug 6, 2002
Discharge valve
COPELAND CORP28 citations91
US5403172AApr 4, 1995
Scroll machine sound attenuation
COPELAND CORP33 citations91
US5464332ANov 7, 1995
Compressor with motor cooling fan
COPELAND CORP22 citations90
US5649816AJul 22, 1997
Hermetic compressor with heat shield
COPELAND CORP30 citations88
US6575710B2Jun 10, 2003
Compressor with blocked suction capacity modulation
COPELAND CORP14 citations84
US6164334ADec 26, 2000
Reed valve retention
COPELAND CORP16 citations84
US5038891AAug 13, 1991
Refrigerant compressor
COPELAND CORP13 citations74
US6116867ASep 12, 2000
Scroll machine with capacity modulation
COPELAND CORP14 citations72
US5538408AJul 23, 1996
Scroll machine sound attenuation
COPELAND CORP13 citations72
US5487654AJan 30, 1996
Hermetic compressor with heat shield
COPELAND CORP9 citations72
US5358391AOct 25, 1994
Hermetic compressor with heat shield
COPELAND CORP7 citations72
US5527167AJun 18, 1996
Scroll machine sound attenuation
COPELAND CORP4 citations61
EMERSON CLIMATE TECHNOLOGIES
10 patentsUS8964338B2Feb 24, 2015
System and method for compressor motor protection
EMERSON CLIMATE TECHNOLOGIES15 citations92
US9476414B2Oct 25, 2016
Variable capacity reciprocating compressor
EMERSON CLIMATE TECHNOLOGIES7 citations84
US10352308B2Jul 16, 2019
Reciprocating compressor with vapor injection system
EMERSON CLIMATE TECHNOLOGIES3 citations73
US9876346B2Jan 23, 2018
System and method for compressor motor protection
EMERSON CLIMATE TECHNOLOGIES2 citations72
US9590413B2Mar 7, 2017
System and method for compressor motor protection
EMERSON CLIMATE TECHNOLOGIES3 citations72
US11346583B2May 31, 2022
Climate-control system having vapor-injection compressors
EMERSON CLIMATE TECHNOLOGIES2 citations70
US10627146B2Apr 21, 2020
Liquid slugging detection and protection
EMERSON CLIMATE TECHNOLOGIES3 citations62
US8496454B2Jul 30, 2013
Unloader system and method for a compressor
EMERSON CLIMATE TECHNOLOGIES4 citations62
US10145372B2Dec 4, 2018
Variable capacity reciprocating compressor
EMERSON CLIMATE TECHNOLOGIES0 citations52
US10280918B2May 7, 2019
Reciprocating compressor with vapor injection system
EMERSON CLIMATE TECHNOLOGIES0 citations42
EMERSON CLIMATE TECH RETAIL SOLUTIONS INC
4 patentsUS11009250B2May 18, 2021
Maintenance and diagnostics for refrigeration systems
EMERSON CLIMATE TECH RETAIL SOLUTIONS INC2 citations69
US10371406B2Aug 6, 2019
Maintenance and diagnostics for refrigeration systems
EMERSON CLIMATE TECH RETAIL SOLUTIONS INC4 citations69
US10240836B2Mar 26, 2019
Energy management for refrigeration systems
EMERSON CLIMATE TECH RETAIL SOLUTIONS INC1 citations69
US10775085B2Sep 15, 2020
Energy management for refrigeration systems
EMERSON CLIMATE TECH RETAIL SOLUTIONS INC1 citations59