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Window balance assembly
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Patent number 11,613,920
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Issue date Mar 28, 2023
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Caldwell Manufacturing Company North America, LLC
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Mark R. Baker
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Window counterbalance system
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Patent number 9,309,709
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Issue date Apr 12, 2016
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Caldwell Manufacturing Company North America, LLC
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Richard S. DeNormand
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Window balance assembly
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Patent number 9,121,209
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Issue date Sep 1, 2015
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Caldwell Manufacturing Company North America, LLC
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Mark R. Baker
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Window balance assembly
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Patent number 8,561,260
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Issue date Oct 22, 2013
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Caldwell Manufacturing Company North America, LLC
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Mark R. Baker
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Two piece carrier and balance assembly
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Patent number 7,945,994
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Issue date May 24, 2011
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Caldwell Manufacturing Company North America, LLC
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Tobias Peter Dallas
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Extended travel window balance
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Patent number 7,735,192
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Issue date Jun 15, 2010
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Caldwell Manufacturing Company
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Richard S deNormand
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Adjustable brace for window sash
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Patent number 5,546,702
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Issue date Aug 20, 1996
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Caldwell Manufacturing Company
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Richard S. deNormand
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Block and tackle window balance
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Patent number 5,530,991
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Issue date Jul 2, 1996
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Caldwell Manufacturing Company
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Richard S. deNormand
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Window jamb liner
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Patent number 5,199,219
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Issue date Apr 6, 1993
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Caldwell Manufacturing Company
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James A. Martini
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES