Assignee
ARMSTRONG INT INC
US35 patents
Top patents by PatentIndex Score
US4842460AJun 27, 1989
Load holding device
ARMSTRONG INT INC62 citations95
US5516466AMay 14, 1996
Steam humidifier system
ARMSTRONG INT INC113 citations93
US5056759AOct 15, 1991
Protected bellows for valve
ARMSTRONG INT INC22 citations92
US7246036B2Jul 17, 2007
Remote monitor for steam traps
ARMSTRONG INT INC21 citations90
US6145529ANov 14, 2000
Monitoring steam traps using RF signaling
ARMSTRONG INT INC44 citations90
US5992436ANov 30, 1999
Monitoring steam traps using RF signaling
ARMSTRONG INT INC42 citations90
US5947145ASep 7, 1999
Combination steam trap and flow valve assembly
ARMSTRONG INT INC19 citations90
US5881766AMar 16, 1999
Manifold and station for mounting steam/condensate responsive devices in a condensate return line
ARMSTRONG INT INC22 citations90
US4630633ADec 23, 1986
Steam trap checker
ARMSTRONG INT INC37 citations89
US4508135AApr 2, 1985
Combined inlet and outlet fitting
ARMSTRONG INT INC31 citations89
US7203626B2Apr 10, 2007
Method and apparatus for analyzing steam trap data
ARMSTRONG INT INC12 citations88
US4875428AOct 24, 1989
Motorized outrigger drive
ARMSTRONG INT INC24 citations88
US5065785ANov 19, 1991
Steam trap with separate steam and condensate inlets
ARMSTRONG INT INC26 citations84
US7150100B2Dec 19, 2006
Method of forming a jacketed steam distribution tube
ARMSTRONG INT INC23 citations83
US6070559AJun 6, 2000
Annular tube heat exchanger
ARMSTRONG INT INC16 citations83
US5942163AAug 24, 1999
Low pressure jacketed steam manifold
ARMSTRONG INT INC40 citations83
US6599096B1Jul 29, 2003
Steam driven pump
ARMSTRONG INT INC19 citations82
US7702484B2Apr 20, 2010
Steam trap monitoring
ARMSTRONG INT INC8 citations81
USD292391SOct 20, 1987
Bracket for mounting outboard engine behind boat transom
ARMSTRONG INT INC22 citations81
US4675505AJun 23, 1987
Stepped output steam humidifier
ARMSTRONG INT INC31 citations80
US7912675B2Mar 22, 2011
Method and apparatus for analyzing steam trap data
ARMSTRONG INT INC9 citations77
US6467503B2Oct 22, 2002
Manifold and station for mounting steam/condensate responsive devices in a condensate return line
ARMSTRONG INT INC10 citations71
US6099260AAug 8, 2000
Pump trap assembly having multiple pivot axes
ARMSTRONG INT INC9 citations70
US4852292AAug 1, 1989
Cable terminal
ARMSTRONG INT INC9 citations69
US4468962ASep 4, 1984
Energy loss detection system
ARMSTRONG INT INC14 citations69
US4456173AJun 26, 1984
Energy loss detection system
ARMSTRONG INT INC8 citations69
US11726068B2Aug 15, 2023
Steam/hot water device monitoring
ARMSTRONG INT INC2 citations67
US11255823B2Feb 22, 2022
Steam/hot water device monitoring
ARMSTRONG INT INC4 citations67
US6602056B1Aug 5, 2003
Steam driven pump
ARMSTRONG INT INC7 citations65
USD884519SMay 19, 2020
Handheld tester
ARMSTRONG INT INC1 citations57
US7201181B1Apr 10, 2007
Mixing valve
ARMSTRONG INT INC4 citations54
US6446877B1Sep 10, 2002
Gas fired humidifier
ARMSTRONG INT INC2 citations54
US12480916B2Nov 25, 2025
Device monitoring systems and methods
ARMSTRONG INT INC0 citations47
US10667023B2May 26, 2020
Steam/hot water monitoring and control system
ARMSTRONG INT INC0 citations34
US11460152B2Oct 4, 2022
Steam trap and valve assembly station
ARMSTRONG INT INC0 citations31