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Sealed damper
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Patent number 10,816,214
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Issue date Oct 27, 2020
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Michael Ross Cates
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Duct access door
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Patent number 9,500,387
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Issue date Nov 22, 2016
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Kevin R. Chwala
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Chimney damper
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Patent number 9,091,439
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Issue date Jul 28, 2015
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Lawrence A. Brown
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Chimney blocking apparatus
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Patent number 9,086,218
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Issue date Jul 21, 2015
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Simon Christopher Wild
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Adjustable roof jack
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Patent number 8,763,325
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Issue date Jul 1, 2014
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Dot Metal Products
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Ventura S. Rodriguez
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E04 - BUILDING
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Adjustable roof jack
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Patent number 8,615,943
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Issue date Dec 31, 2013
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Dot Metal Products
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Ventura S. Rodriguez
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E04 - BUILDING
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Adjustable roof jack
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Patent number 8,534,013
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Issue date Sep 17, 2013
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Dot Metal Products
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Ventura S. Rodriguez
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E04 - BUILDING
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Chimney cap
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Patent number 8,246,430
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Issue date Aug 21, 2012
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Improved Consumer Products, Inc.
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William C. Paynton
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Chimney damper
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Patent number 7,422,519
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Issue date Sep 9, 2008
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Lawrence A. Brown
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Chimney cap
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Patent number 6,997,798
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Issue date Feb 14, 2006
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Chimney Kap Products
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Guy Jensen
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Chimney cap apparatus and method
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Patent number 6,926,600
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Issue date Aug 9, 2005
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European Copper, L.L.C.
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John G. Arnold, Jr.
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Sash sensing system and method
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Patent number 6,561,892
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Issue date May 13, 2003
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Tek-Air Systems, Inc.
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Kenneth W. Kolkebeck
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Flue seal
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Patent number 6,520,175
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Issue date Feb 18, 2003
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Jennifer L. Jones
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Access door for ductwork
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Patent number 6,505,441
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Issue date Jan 14, 2003
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Ductmate Industries, Inc.
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Alan B. Shuey
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Catalyst door system
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Patent number 6,412,221
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Issue date Jul 2, 2002
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Thermal Engineering International
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Jon Emsbo
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Adjustable chimney cover
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Patent number 6,066,039
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Issue date May 23, 2000
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Cowen; Calvin A.
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Calvin A. Cowen
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Chimney cap hood
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Patent number 5,897,434
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Issue date Apr 27, 1999
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Christopher B. Arbucci
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Collapsible chimney cap
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Patent number 5,876,276
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Issue date Mar 2, 1999
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Christopher B. Arbucci
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Adjustable chimney cover
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Patent number 5,842,918
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Issue date Dec 1, 1998
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Cowen; Calvin A.
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Calvin A. Cowen
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES