Assignee
CALDWELL MFG CO
US·54 granted patents·13 pending applications·1,595 citations·filing 1973–2010
Top patents by PatentIndex Score
67 records- 0199US5353548ACurl spring shoe based window balance systemCALDWELL MFG CO·Filed 1993·Granted Oct 11, 1994·126 cites·63 claims
- 0298US5463793ASash shoe system for curl spring window balanceCALDWELL MFG CO·Filed 1994·Granted Nov 7, 1995·100 cites·43 claims
- 0397US7735191B2Locking shoe and mounting bracket for curl spring window balance systemCALDWELL MFG CO·Filed 2007·Granted Jun 15, 2010·41 cites·20 claims
- 0494US6565133B1Sweep lock and tilt latch combinationCALDWELL MFG CO·Filed 2000·Granted May 20, 2003·82 cites·8 claims
- 0593US6041476AInverted block and tackle window balanceCALDWELL MFG CO·Filed 1997·Granted Mar 28, 2000·83 cites·23 claims
- 0688US5530991ABlock and tackle window balanceCALDWELL MFG CO·Filed 1994·Granted Jul 2, 1996·63 cites·5 claims
- 0787US6378169B1Mounting arrangement for constant force spring balanceCALDWELL MFG CO·Filed 2000·Granted Apr 30, 2002·52 cites·37 claims
- 0886US7004515B2Fenestration locking systemCALDWELL MFG CO·Filed 2002·Granted Feb 28, 2006·37 cites·35 claims
- 0985US7708322B2Actuator for use in fenestration systemsCALDWELL MFG CO·Filed 2004·Granted May 4, 2010·34 cites·17 claims
- 1083US7703175B2Curl spring coverCALDWELL MFG CO·Filed 2007·Granted Apr 27, 2010·14 cites·20 claims
- 1181US5189838ATilt sash lock shoe systemCALDWELL MFG CO·Filed 1992·Granted Mar 2, 1993·48 cites·40 claims
- 1281US4941285ALift-off shoe system for tilt windowCALDWELL MFG CO·Filed 1989·Granted Jul 17, 1990·43 cites·30 claims
- 1380US4167835ADemountable sash lockCALDWELL MFG CO·Filed 1973·Granted Sep 18, 1979·58 cites·2 claims
- 1479US4571887AAutomatic friction sash holderCALDWELL MFG CO·Filed 1984·Granted Feb 25, 1986·39 cites·39 claims
- 1578US6032417ACorner locking carrier shoe for tilt sashCALDWELL MFG CO·Filed 1997·Granted Mar 7, 2000·48 cites·76 claims
- 1677US4452012APivot shoe for sash balanceCALDWELL MFG CO·Filed 1982·Granted Jun 5, 1984·55 cites·9 claims
- 1776US6523868B1Wind-resistant window sash lockCALDWELL MFG CO·Filed 2000·Granted Feb 25, 2003·27 cites·21 claims
- 1870US5572828APin lock for tilt sash lock shoeCALDWELL MFG CO·Filed 1995·Granted Nov 12, 1996·37 cites·28 claims
- 1967US7735192B2Extended travel window balanceCALDWELL MFG CO·Filed 2006·Granted Jun 15, 2010·6 cites·17 claims
- 2067US4885871AAudibly locking shoe system for take-out windowCALDWELL MFG CO·Filed 1988·Granted Dec 12, 1989·29 cites·19 claims
- 2167US4799333ALock shoe system for take-out windowCALDWELL MFG CO·Filed 1987·Granted Jan 24, 1989·30 cites·38 claims
- 2266US6478347B1Wind-resistant sweep lockCALDWELL MFG CO·Filed 2000·Granted Nov 12, 2002·17 cites·31 claims
- 2366US6446391B1Casement sash cable actuatorCALDWELL MFG CO·Filed 2000·Granted Sep 10, 2002·14 cites·12 claims
- 2466US5152032AWindow sash balance with tension and torsion springCALDWELL MFG CO·Filed 1991·Granted Oct 6, 1992·30 cites·18 claims
- 2564US5119592ABalance system for laterally biased sash guidesCALDWELL MFG CO·Filed 1990·Granted Jun 9, 1992·29 cites·12 claims
- 2663US4837976AWindow balance spring cover friction systemCALDWELL MFG CO·Filed 1988·Granted Jun 13, 1989·21 cites·17 claims
- 2763US4606147ASealing jamb liner for double-hung window sashCALDWELL MFG CO·Filed 1984·Granted Aug 19, 1986·26 cites·18 claims
- 2862US6513194B2Pivot connection adjustment assemblyCALDWELL MFG CO·Filed 2001·Granted Feb 4, 2003·15 cites·16 claims
- 2962US5615452ALift-off guard guide for tilt shoeCALDWELL MFG CO·Filed 1995·Granted Apr 1, 1997·29 cites·17 claims
- 3062US4517766AAdjustable friction sash holderCALDWELL MFG CO·Filed 1983·Granted May 21, 1985·22 cites·7 claims
- 3161US4689850APulley mount for window balance systemCALDWELL MFG CO·Filed 1986·Granted Sep 1, 1987·27 cites·32 claims
- 3259US4854558ASound deadener for window counterbalance springCALDWELL MFG CO·Filed 1988·Granted Aug 8, 1989·19 cites·17 claims
- 3358US7367162B2System for shoe latching in laterally removable sashCALDWELL MFG CO·Filed 2004·Granted May 6, 2008·10 cites·20 claims
- 3458US5267416AWindow sash counterbalance with varying liftCALDWELL MFG CO·Filed 1992·Granted Dec 7, 1993·24 cites·12 claims
- 3557US5934031AJamb liner wind braces for tilt windowCALDWELL MFG CO·Filed 1998·Granted Aug 10, 1999·27 cites·35 claims
- 3655US5207025AAutomatic friction shoeCALDWELL MFG CO·Filed 1992·Granted May 4, 1993·21 cites·31 claims
- 3755US2010212463A1Pivoting Handle Installation Tool for Assembling Pre-tension Spiral Balances into Window FramesCALDWELL MFG CO·Filed 2009·Application pending·0 cites
- 3855US2010083464A1Parallel Axes Compound BalanceCALDWELL MFG CO·Filed 2009·Application pending·0 cites
- 3954US4779380ASpring cover friction system for sash balanceCALDWELL MFG CO·Filed 1987·Granted Oct 25, 1988·16 cites·18 claims
- 4054US4685175ASpring system for double-hung window sashCALDWELL MFG CO·Filed 1985·Granted Aug 11, 1987·21 cites·13 claims
- 4153US2009119874A1Snap-On Window Balance Terminal ClipCALDWELL MFG CO·Filed 2007·Application pending·0 cites
- 4253US2009188076A1Block for Window Block and Tackle Sash BalanceCALDWELL MFG CO·Filed 2008·Application pending·0 cites
- 4353US2009094898A1Assembly of Cam-actuated Brake in Locking Shoe for Tilt SashCALDWELL MFG CO·Filed 2007·Application pending·0 cites
- 4453US2010077563A1Side Load Carrier and Balance System for Window SashesCALDWELL MFG CO·Filed 2009·Application pending·0 cites
- 4552US5231795ALock shoe system for heavy sashCALDWELL MFG CO·Filed 1992·Granted Aug 3, 1993·19 cites·25 claims
- 4652US4672713ASpring coupler for block and tackle window balance systemCALDWELL MFG CO·Filed 1986·Granted Jun 16, 1987·20 cites·22 claims
- 4751US2007101654A1Spring Wiper for Curl Spring BalancesCALDWELL MFG CO·Filed 2006·Application pending·0 cites
- 4850US5199219AWindow jamb linerCALDWELL MFG CO·Filed 1991·Granted Apr 6, 1993·20 cites·14 claims
- 4950US4800680ACord guide system for sash balanceCALDWELL MFG CO·Filed 1987·Granted Jan 31, 1989·18 cites·24 claims
- 5050US4654928AAdjustable friction block and tackle window balance systemCALDWELL MFG CO·Filed 1986·Granted Apr 7, 1987·19 cites·32 claims
Showing the top 50 of 67 patent records by PatentIndex Score.
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