Patents by Inventor Haoqian Liu

Haoqian Liu 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).

  • Locking mechanism to secure a firearm accessory mount to a picatinny rail
    Patent number: 10935348
    Abstract: A locking mechanism for securely attaching an accessory mount to a firearm having a Picatinny/Weaver mounting rail. The locking mechanism includes a resiliently biased slider jam that is received within a transverse groove of the Picatinny/Weaver rail. A clip is provided to clamp the accessory mount to the rail by a locking screw. A locking screw spring may urge the clip away from a tight engagement with the rail when the locking screw is in a loosened condition. The locking mechanism is adaptable to all Picatinny/Weaver rails and provides a rock solid firearm accessory mounting system.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: March 2, 2021
    Inventors: Haoqian Liu, Xiaobo Liu
  • LOCKING MECHANISM TO SECURE A FIREARM ACCESSORY MOUNT TO A PICATINNY RAIL
    Publication number: 20200271423
    Abstract: A locking mechanism for securely attaching an accessory mount to a firearm having a Picatinny/Weaver mounting rail. The locking mechanism includes a resiliently biased slider jam that is received within a transverse groove of the Picatinny/Weaver rail. A clip is provided to clamp the accessory mount to the rail by a locking screw. A locking screw spring may urge the clip away from a tight engagement with the rail when the locking screw is in a loosened condition. The locking mechanism is adaptable to all Picatinny/Weaver rails and provides a rock solid firearm accessory mounting system.
    Type: Application
    Filed: February 25, 2020
    Publication date: August 27, 2020
    Inventors: Haoqian Liu, Xiaobo Liu