Patents by Inventor David W. Johnsen

David W. Johnsen 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).

  • Pair of spectacles
    Patent number: D243084
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: January 18, 1977
    Assignee: American Optical Corporation
    Inventor: David W. Johnsen
  • Pair of spectacles
    Patent number: D243395
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: February 15, 1977
    Assignee: American Optical Corporation
    Inventor: David W. Johnsen
  • Pair of spectacles
    Patent number: D243396
    Type: Grant
    Filed: December 8, 1975
    Date of Patent: February 15, 1977
    Assignee: American Optical Corporation
    Inventor: David W. Johnsen
  • Spectacle frame front
    Patent number: D243397
    Type: Grant
    Filed: January 8, 1976
    Date of Patent: February 15, 1977
    Assignee: American Optical Corporation
    Inventor: David W. Johnsen
  • Pair of spectacles
    Patent number: D243762
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: March 22, 1977
    Assignee: American Optical Corporation
    Inventor: David W. Johnsen
  • Pair of spectacles
    Patent number: D244447
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: May 24, 1977
    Assignee: American Optical Corporation
    Inventor: David W. Johnsen
  • Pair of spectacles
    Patent number: D244603
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: June 7, 1977
    Assignee: American Optical Corporation
    Inventor: David W. Johnsen
  • Pair of spectacles
    Patent number: D246656
    Type: Grant
    Filed: October 28, 1976
    Date of Patent: December 13, 1977
    Assignee: American Optical Corporation
    Inventor: David W. Johnsen
  • Pair of spectacles
    Patent number: D247910
    Type: Grant
    Filed: March 21, 1977
    Date of Patent: May 16, 1978
    Assignee: American Optical Corporation
    Inventor: David W. Johnsen
  • Spectacles frame front
    Patent number: D248861
    Type: Grant
    Filed: March 21, 1977
    Date of Patent: August 8, 1978
    Assignee: American Optical Corporation
    Inventor: David W. Johnsen
  • Pair of spectacles
    Patent number: D252813
    Type: Grant
    Filed: September 12, 1977
    Date of Patent: September 4, 1979
    Assignee: American Optical Corporation
    Inventor: David W. Johnsen
  • Spectacles frame front
    Patent number: D252882
    Type: Grant
    Filed: September 13, 1977
    Date of Patent: September 11, 1979
    Assignee: American Optical Corporation
    Inventor: David W. Johnsen
  • Spectacles frame front
    Patent number: D253479
    Type: Grant
    Filed: January 19, 1978
    Date of Patent: November 20, 1979
    Assignee: American Optical Corporation
    Inventor: David W. Johnsen
  • Pair of spectacles
    Patent number: D253480
    Type: Grant
    Filed: March 3, 1978
    Date of Patent: November 20, 1979
    Assignee: American Optical Corporation
    Inventor: David W. Johnsen
  • Pair of spectacles
    Patent number: D253954
    Type: Grant
    Filed: April 27, 1978
    Date of Patent: January 15, 1980
    Assignee: American Optical Corporation
    Inventor: David W. Johnsen
  • Pair of spectacles
    Patent number: D263058
    Type: Grant
    Filed: May 25, 1979
    Date of Patent: February 16, 1982
    Assignee: American Optical Corporation
    Inventor: David W. Johnsen