Featured patents

Adjustable Door Closer
US 08863357 B1, Oct. 21, 2014, Hui-Chen Chang / Heng Kuo Co., Ltd (Daxi Township, Taoyuan County, TW)
An adjustable door closer comprising:…

Door Actuator
US 08793838 B2, Aug. 5, 2014, Brian Christopher Eickhoff et al. / Schlage Lock Company LLC (Indianapolis, US)
An apparatus comprising:…

Retracting Device
US 08793839 B2, Aug. 5, 2014, Junpei Iwaki / Sugatsune Kogyo Co., Ltd. (Tokyo, JP)
A retracting device comprising:…

Patentorg has 3 documents under Spring Patents.

Other subcategories for category Miscellaneous hardware (e.g., bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance, etc.)
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