Patents by Inventor Marlene Ma

Marlene Ma 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).

  • Computer mouse
    Patent number: D368900
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: April 16, 1996
    Assignee: Silitek Corporation
    Inventor: Marlene Ma
  • Computer mouse
    Patent number: D369592
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: May 7, 1996
    Assignee: Silitek Corporation
    Inventor: Marlene Ma
  • Computer mouse
    Patent number: D369593
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: May 7, 1996
    Assignee: Silitek Corporation
    Inventor: Marlene Ma