Patents by Inventor Xifeng Liu

Xifeng 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).

  • Patent number: 11945067
    Abstract: An automobile hub fixture includes a fixture body and a positioning apparatus. The fixture body includes a fixed platform and a plurality of clamping claws arranged at intervals in a circumferential direction of the fixed platform. The clamping claws are configured to clamp an outer rim of a hub. The plurality of clamping claws are connected to a driving member by using a linkage, and the driving member drives the clamping claws to radially move along the fixed platform. The positioning apparatus includes a movable platform slidably connected to the clamping claws. A positioning module configured to position an inner rim or the outer rim of the hub is mounted to the movable platform. The machining device includes a fixture, a machine tool, and a minimal quantity lubrication apparatus. The production line includes a machining device, a loading system, a loading and unloading manipulator, and a catching table.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: April 2, 2024
    Assignees: QINGDAO UNIVERSITY OF TECHNOLOGY, HANERGY (QINGDAO) LUBRICATION TECHNOLOGY CO., LTD.
    Inventors: Changhe Li, Minkai Chen, Zongming Zhou, Naiqing Zhang, Shuaiqiang Xu, Dewei Liu, Bingheng Lu, Yanbin Zhang, Xiaoming Wang, Min Yang, Bo Liu, Xin Cui, Mingzheng Liu, Xifeng Wu
  • Publication number: 20230102737
    Abstract: The disclosure provides a debris bin assembly, a cleaning robot and a cleaning robot system, the debris bin assembly includes a debris bin housing, a filter assembly, and a flow guide plate, the debris bin housing includes a top portion and a bottom portion disposed opposite to the top portion, and a side housing surrounding the top portion and the bottom portion, the top portion, the bottom portion and the side housing are enclosed to form an inner cavity, the top portion of the debris bin housing is provided with an air exhaust channel communicating with the inner cavity and an air outlet communicating with the air exhaust channel, the side housing is provided with an air inlet communicating with the inner cavity, the air inlet inclines towards a side where the top portion is located, the filter assembly is disposed in the air exhaust channel of the top portion, the flow guide plate is located in the inner cavity and is disposed opposite to the air inlet, the flow guide plate extends from the top portion to
    Type: Application
    Filed: September 19, 2022
    Publication date: March 30, 2023
    Inventor: Xifeng LIU
  • Patent number: 11040009
    Abstract: This disclosure relates to polymersomes comprising a crosslinked polymer and their use as drug delivery vehicles. Specifically, polymersomes comprising a polymer of Formula I: wherein each R is independently C1-6 alkyl; and n is an integer between 1 and 50.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: June 22, 2021
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Xifeng Liu, Michael J. Yaszemski, Lichun Lu
  • Publication number: 20200214982
    Abstract: This disclosure relates to polymersomes comprising a crosslinked polymer and their use as drug delivery vehicles. Specifically, polymersomes comprising a polymer of Formula I: wherein each R is independently C1-6 alkyl; and n is an integer between 1 and 50.
    Type: Application
    Filed: March 4, 2020
    Publication date: July 9, 2020
    Applicant: Mayo Foundation for Medical Education and Research
    Inventors: Xifeng Liu, Michael J. Yaszemski, Lichun Lu
  • Patent number: 10617643
    Abstract: This disclosure relates to polymersomes comprising a crosslinked polymer and their use as drug delivery vehicles. Specifically, polymersomes comprising a polymer of Formula I: wherein each R is independently C1-6 alkyl; and n is an integer between 1 and 50.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: April 14, 2020
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Xifeng Liu, Michael J. Yaszemski, Lichun Lu
  • Publication number: 20190358162
    Abstract: This disclosure relates to polymersomes comprising a crosslinked polymer and their use as drug delivery vehicles. Specifically, polymersomes comprising a polymer of Formula I: wherein each R is independently C1-6 alkyl; and n is an integer between 1 and 50.
    Type: Application
    Filed: December 14, 2018
    Publication date: November 28, 2019
    Applicant: Mayo Foundation for Medical Education and Research
    Inventors: Xifeng Liu, Michael J. Yaszemski, Lichun Lu
  • Patent number: 10188606
    Abstract: This disclosure relates to polymersomes comprising a crosslinked polymer and their use as drug delivery vehicles. Specifically, polymersomes comprising a polymer of Formula I: wherein each R is independently C1-6 alkyl; and n is an integer between 1 and 50.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: January 29, 2019
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Xifeng Liu, Michael J. Yaszemski, Lichun Lu
  • Publication number: 20180098939
    Abstract: This disclosure relates to polymersomes comprising a crosslinked polymer and their use as drug delivery vehicles. Specifically, polymersomes comprising a polymer of Formula I: wherein each R is independently C1-6 alkyl; and n is an integer between 1 and 50.
    Type: Application
    Filed: October 9, 2017
    Publication date: April 12, 2018
    Applicant: Mayo Foundation for Medical Education and Research
    Inventors: Xifeng Liu, Michael J. Yaszemski, Lichun Lu