Patents by Inventor Kin Wa Kwan

Kin Wa Kwan 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).

  • Metal hydroxides based actuator with polymeric supporting film
    Patent number: 11408403
    Abstract: Disclosed are actuators containing an active layer comprising at least one metal hydroxide, the active layer having a first volume under no stimulation and a second volume either greater than or smaller than the first volume under stimulation; and a passive layer comprising a porous polymer membrane, the passive layer having an elastic modulus at least half of an elastic modulus of the active layer.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: August 9, 2022
    Assignee: THE UNIVERSITY OF HONG KONG
    Inventors: Alfonso Hing Wan Ngan, Kin Wa Kwan, Runni Wu
  • METAL HYDROXIDES BASED ACTUATOR WITH POLYMERIC SUPPORTING FILM
    Publication number: 20220128045
    Abstract: Disclosed are actuators containing an active layer comprising at least one metal hydroxide, the active layer having a first volume under no stimulation and a second volume either greater than or smaller than the first volume under stimulation; and a passive layer comprising a porous polymer membrane, the passive layer having an elastic modulus at least half of an elastic modulus of the active layer.
    Type: Application
    Filed: February 4, 2020
    Publication date: April 28, 2022
    Inventors: Alfonso Hing Wan Ngan, Kin Wa Kwan, Runni Wu