Patents by Inventor Kevin Patrick HARTZOG

Kevin Patrick HARTZOG 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: 12025154
    Abstract: A refrigerant compressor according to an exemplary aspect of the present disclosure includes, among other things, a diffuser including grooves configured to resist backflow of refrigerant. The compressor is used in a heating, ventilation, and air conditioning (HVAC) chiller system, for example.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: July 2, 2024
    Assignee: DANFOSS A/S
    Inventors: Jin Yan, Kevin Patrick Hartzog, Tianli Zhang
  • Publication number: 20230400038
    Abstract: A refrigerant compressor according to an exemplary aspect of the present disclosure includes, among other things, a diffuser including grooves configured to resist backflow of refrigerant. The compressor is used in a heating, ventilation, and air conditioning (HVAC) chiller system, for example.
    Type: Application
    Filed: November 17, 2021
    Publication date: December 14, 2023
    Inventors: Jin Yan, Kevin Patrick HARTZOG, Tianli ZHANG