Patents by Inventor Wooju Choi

Wooju Choi 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).

  • Publication number: 20200088181
    Abstract: Provided is a linear compressor. The linear compressor includes a piston, a cylinder, and a bearing inflow passage. The bearing inflow passage includes a first bearing inflow passage extending inward from an outer circumferential surface of the cylinder in the radial direction and a second bearing inflow passage extending from the first bearing inflow passage to an inner circumferential surface of the cylinder. The second bearing inflow passage extends from the inner circumferential surface of the cylinder in a circumferential direction.
    Type: Application
    Filed: November 22, 2019
    Publication date: March 19, 2020
    Inventors: Wooju JEON, Donghan KIM, Kichul CHOI
  • Publication number: 20200080553
    Abstract: Provided is a linear compressor. The linear compressor includes a cylinder disposed in a shell to define a compression space for a refrigerant, a piston installed to reciprocate in the cylinder, a motor assembly that allows the piston to move in an axial direction of the cylinder and thereby to compress the refrigerant introduced into the compression space, a nozzle which is provided in the cylinder and through which a portion of the refrigerant introduced into the compression space passes, and a cylinder filter installed in the cylinder and disposed at an inlet-side of the nozzle. At least one or more surfaces of the cylinder filter are oil-repellent coated.
    Type: Application
    Filed: August 16, 2019
    Publication date: March 12, 2020
    Inventors: Kichul CHOI, Wooju JEON
  • Publication number: 20200076755
    Abstract: A group feed is displayed for a selected group by a private social network service. The group feed displays only threads with unviewed content along with a user actuatable display element that allows the user to switch to a feed that displays all content for the group.
    Type: Application
    Filed: September 16, 2019
    Publication date: March 5, 2020
    Inventors: Stephanie HSU, Wooju Choi, Mario Estrada, Anthony Lawrence Jackson, Isura Harshana Edirisinghe, Stephen Quirk, Cameron Hindle Hughes Lock, Manuel Munoz Solera, Omer-Moshe Gelbard
  • Publication number: 20200011316
    Abstract: Provided is a linear compressor. The linear compressor includes a piston, a cylinder, and a bearing inflow passage. The bearing inflow passage includes a first bearing inflow passage extending inward from an outer circumferential surface of the cylinder in the radial direction and a second bearing inflow passage extending from the first bearing inflow passage to an inner circumferential surface of the cylinder. The second bearing inflow passage extends from the inner circumferential surface of the cylinder in a circumferential direction.
    Type: Application
    Filed: July 3, 2019
    Publication date: January 9, 2020
    Inventors: Wooju JEON, Donghan KIM, Kichul CHOI
  • Publication number: 20200011318
    Abstract: Provided is a linear compressor. The linear compressor includes a filter bracket seated on a gas inflow part passing through a cylinder and a filter assembly including a filter member seated on the filter bracket.
    Type: Application
    Filed: July 3, 2019
    Publication date: January 9, 2020
    Inventors: Wooju JEON, Donghan KIM, Kichul CHOI
  • Patent number: 10469426
    Abstract: A group feed is displayed for a selected group by a private social network service. The group feed displays only threads with unviewed content along with a user actuatable display element that allows the user to switch to a feed that displays all content for the group.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: November 5, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Stephanie Hsu, Wooju Choi, Mario Estrada, Anthony Lawrence Jackson, Isura Harshana Edirisinghe, Stephen Quirk, Cameron Hindle Hughes Lock, Manuel Munoz Selera, Omer-Moshe Gelbard
  • Publication number: 20170359290
    Abstract: A group feed is displayed for a selected group by a private social network service. The group feed displays only threads with unviewed content along with a user actuatable display element that allows the user to switch to a feed that displays all content for the group.
    Type: Application
    Filed: June 14, 2016
    Publication date: December 14, 2017
    Inventors: Stephanie Hsu, Wooju Choi, Mario Estrada, Anthony Lawrence Jackson, Isura Harshana Edirisinghe, Stephen Quirk, Cameron Hindle Hughes Lock, Manuel Munoz Solera, Omer-Moshe Gelbard