Patents by Inventor Doris Wong

Doris Wong 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).

  • Nasal mask
    Patent number: 5724965
    Abstract: A miniature nasal mask for supplying breathing gas to a human user through an interface with the user's nares, the interface being maintained by a contact seal which engages the user's face only within an area between the tip and immediately adjacent lateral flanks of the user's nose adjacent to the nares, and the user's upper lip.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: March 10, 1998
    Assignee: Respironics Inc.
    Inventors: Patrick M. Handke, John R. Starr, Doris Wong
  • Apparatus for diluting chemical concentrates
    Patent number: D339625
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: September 21, 1993
    Assignee: Scott Paper Company
    Inventors: Allen E. Brandenburg, James M. Rubenstein, Alexander Bally, Doris Wong