Hearing Aid Patents (Class D24/174)
  • Patent number: D322126
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: December 3, 1991
    Assignee: U.S. Philips Corporation
    Inventor: Okke O. van Mourik
  • Patent number: D322319
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: December 10, 1991
    Assignee: U.S. Philips Corporation
    Inventor: Okke O. van Mourik
  • Patent number: D322481
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: December 17, 1991
    Assignee: U.S. Philips Corporation
    Inventor: Okke O. van Mourik
  • Patent number: D338530
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: August 17, 1993
    Assignee: Audio Science, Inc.
    Inventor: Dennis A. Oberlander
  • Patent number: D340286
    Type: Grant
    Filed: January 29, 1991
    Date of Patent: October 12, 1993
    Inventor: Jinseong Seo
  • Patent number: D340522
    Type: Grant
    Filed: December 3, 1991
    Date of Patent: October 19, 1993
    Assignee: Nobelpharma AB
    Inventor: Jonnie Silbersky
  • Patent number: D344800
    Type: Grant
    Filed: September 12, 1991
    Date of Patent: March 1, 1994
    Assignee: Comento AB
    Inventor: Ulf Lamby
  • Patent number: D346026
    Type: Grant
    Filed: June 2, 1992
    Date of Patent: April 12, 1994
    Assignee: Unex Corporation
    Inventors: Lawrence G. Shubert, Christopher O. Lada, Christopher Loew, John Ela
  • Patent number: D353387
    Type: Grant
    Filed: November 6, 1992
    Date of Patent: December 13, 1994
    Inventor: Sylvan Peters
  • Patent number: D354568
    Type: Grant
    Filed: February 9, 1994
    Date of Patent: January 17, 1995
    Assignee: Rion Kabushiki Kaisha
    Inventors: Toshiyuki Araki, Yoshiyuki Narisawa, Noboru Inoue
  • Patent number: D355702
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: February 21, 1995
    Inventor: Ronald D. Johnson
  • Patent number: D360691
    Type: Grant
    Filed: September 1, 1993
    Date of Patent: July 25, 1995
    Assignee: Knowles Electronics, Inc.
    Inventor: August F. Mostardo
  • Patent number: D360948
    Type: Grant
    Filed: September 1, 1993
    Date of Patent: August 1, 1995
    Assignee: Knowles Electronics, Inc.
    Inventor: August F. Mostardo
  • Patent number: D360949
    Type: Grant
    Filed: September 1, 1993
    Date of Patent: August 1, 1995
    Assignee: Knowles Electronics, Inc.
    Inventor: August F. Mostardo
  • Patent number: D367113
    Type: Grant
    Filed: August 1, 1994
    Date of Patent: February 13, 1996
    Assignee: EarCraft Technologies, Inc.
    Inventor: Eric L. Weeks