Patents

  US Patent No's Foreign Patent No's Part # / Series #
Constant Force Supports and Chaining 6,393,661
6,584,644
6,412,144
6,848,148
7,076,835
7,552,510
2,361,261 (Canada)
2,369,818 (Canada)
981, 983, 984, 985 series
Side Load Extended Travel Block & Tackle Balance 6,598,264
6,877,187
7,155,778
7,353,567
7,669,284
8,042,227
2,376,418 (Canada) 130 series, 135 series, 136 series
Inverted Balance T-Lock 6,679,000
6,820,368
6,931,788
7,191,562
8,424,248
9,580,950
2,367,733 (Canada) 706 series, 716 series, 747 series
Tru-lockĀ® 8,348,308
8,382,166
8,628,126
200980151399.0 (China)
322506 (Mexico)

3205
Inverted Constant Force RE45,328
8,813,310
9,121,209
974 series, 975 series, 977 series, 978 series
Side Load Balance Cord Terminal Clip 6,745,433 2,399,703 (Canada) 100 series, 130 series, 135 series, 136 series, 186 series
Gemini Lock 6,264,252 2,214,291 (Canada) 2770-00
2777-84
Class 5 Side Load Attachment 8,296,903
8,448,296
210, 211, 220, 221 series
Window Opening Control Device / Window Opening Limit Device 8,813,424
9,428,945
2,757,154 (Canada) 14149, 14150, 14151, 14152, SafeGard WOCD
Key Lockable Operator Cover 9,003,706
9,476,241
2014201551 (Australia) 14873, 14874
Casement Window Hinge with Sash Locator 7,735,194 2,546,140 (Canada)
Sliding Door Handle Linkage 6,945,572
7,261,330
2890
Sliding Door Handle D572,996
D583,646

Pile Weatherstripping Manufacturing Apparatus and Method 6,974,512
7,419,555

Door Handle Pull and Escutcheon D592,933
D593,395
Operator Assembly 7,464,619 2,459,237 (Canada)
Two-Point Lock for Sliding Door 8,376,414 2,628,518 (Canada)
5020148 (Japan)
Window Lock Handle and Cover D597,398 129,268 (Canada)
Multipoint Lock Mechanism 8,398,126 2,631,923 (Canada)
Cover and Handle for Window Lock D780,555 201611574 (Australia)
Adjustable Hinge 8,490,246
2,697,880 (Canada)
Multi-Point Mortise Lock Mechanism for Swinging Door 9,593,516
2,708,912 (Canada)
Positive Action Lock for Sliding Windows 7,676,990 2,579,980 (Canada)
Integrated Lock and Tilt-Latch Mechanism for a Sliding Window 7,322,619
2,534,384 (Canada)
Integrated Lock and Tilt-Latch Mechanism for a Sliding Window 7,963,577
2,639,711 (Canada)
Friction Hinge for Push-Out Style Window 7,900,322
2615614 (Canada)
Window Sash Latch D742200 160845 (Canada)
Window Lock Handle and Cover D597,398
129,268 (Canada)
Passive Door Lock Mechanisms 9,765,550 201380053003.5 (China)
Center Release Tilt Latch for Hung Windows 6,817,142 Customer Specific
Balance Shoe with pivot retaining fingers 7,210,267 72488
Crescent Handle D678,032 3828, 3629
Adjustable Door Hinge 8,429,794 HG 200, HG 300
Positionable Hinge 8,438,703 NA
Nexus Multipoint Sliding Door Lock 8,899,635 Nexus Multipoint Sliding Door Lock Systems
Adjustable Lock Point for Lock Tie Bars 9,175,506
Casement Window Operator Handle and Cover D595,111
Multi-Point Sash Lock System for Casement Window 7,452,014
Folding Handle and Operator Cover D591,146
Negative Loading Snubber for Casement Window 8,141,299
Window Operator Cover D649,867
Self Locating Tie Bar guide for Sash Lock Tie Bars 9,217,266
Low Profile High Performance Casement and Awning Window Keeper 9,181,746
Door Handle Pull D592,932
Operator for Moveable Sash 8,601,745
Hardware for a Hinged Light Panel 8,850,744
Recessed Lock Actuating Device for Sliding Doors 9,482,035
Lock with Sliding Door Elements 8,939,474
Multi-Point Lock Having Sequentially-Actuated Locking Elements 9,428,937
Handle D509,420
Sash Rail Lock D569,708
Sash Rail Lock Keeper D583,216
Window Tilt Latch D595,562
Finger-Lift Handle for a Sliding Window D595,564
Integrated Lock and Latch Device for Sliding Windows 9,234,374
FER Locking System for Sliding Windows 9,140,033
9,702,173
Apparatus and Method for Canceling Torsional Forces in a Compound Balance 8,302,258
Window Opening Limit Device and Method of Use 8,950,119
Single Coil Window Balance D464,256
Inverted Constant Force Window Balance for Tilt Sash 9,133,656
Apparatus for Extruding a Low Density Thermoplastic Foam 5,728,406
Projection Window Operator 7,325,359
Low Profile Lock for Windows 9,725,934
Combination Window Sash Lock and Tilt Mechanism 9,719,279
Automatically-Extending Remote Door Lock Bolts 9,637,957
Self-Sealing Butt Hinge 9,617,782
Entry Door Latch Actuator System 9,605,444
Cover and Handle for Window Lock D780555
Opposed Hook Sliding Door Lock 9,790,716
High Security Lock for Door 9,758,997
Sash Lock Actuator 2,322,926 (Canada)
Concealed Casement Window Hinge with Roller and Integral Shipping Block 2,715,866 (Canada)
Enhanced Performance Tandem Roller for Patio Doors 2,350,051 (Canada)
Pick Resistant Sash Lock and Keeper and Method of Locking Sashes 2,242,188 (Canada)

Note:
We are constantly innovating. Additional US and non-US patents protecting these and other products are pending. Products identified in this table are protected at least by the patent(s) listed, and may be covered by additional patent(s) not specifically identified. We reserve the right to update this information at any time.