Patents by Inventor (Newman) Cheng-Wen Lai

(Newman) Cheng-Wen Lai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11525285
    Abstract: An interconnection assembly includes a chassis, and cam plates that are rotatably coupled to the chassis to pivot about a plurality of rotational axises. An upper cam plate is operatively coupled to a deadbolt. The upper cam plate has a cam surface. A lower cam plate is rotatably coupled to the chassis to pivot about a second rotational axis. The lower cam plate is operatively coupled to an interior latch bolt handle. The lower cam plate has a cam slot. A linkage bar is rotatably coupled to the chassis to pivot about a pivot axis. The linkage bar has a first linkage portion having a first cam follower configured to operatively engage the cam surface of the upper cam plate and has a second linkage portion having a second cam follower operatively received in the cam slot of the lower cam plate.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: December 13, 2022
    Assignee: dormakaba USA Inc
    Inventors: (Sam Chen) Po-Yang Chen, (Kate) Kai-Ting Tung, (Steven) Ming-Che Chen, (Newman) Cheng-Wen Lai