Patents by Inventor Ronnie Chi Wah Mak

Ronnie Chi Wah Mak 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).

  • Radio
    Patent number: D380472
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: July 1, 1997
    Assignee: Sanny Electronics Limited
    Inventor: Ronnie Chi Wah Mak
  • Clock radio
    Patent number: D380757
    Type: Grant
    Filed: May 14, 1996
    Date of Patent: July 8, 1997
    Assignee: Sanny Electronics Limited
    Inventor: Ronnie Chi Wah Mak
  • Combined calculator and clock
    Patent number: D382008
    Type: Grant
    Filed: April 17, 1996
    Date of Patent: August 5, 1997
    Assignee: Sanny Electronics Limited
    Inventor: Ronnie Chi Wah Mak
  • Clock
    Patent number: D385199
    Type: Grant
    Filed: May 14, 1996
    Date of Patent: October 21, 1997
    Assignee: Ever Perfect Industries Limited
    Inventor: Ronnie Chi Wah Mak
  • Clock
    Patent number: D385498
    Type: Grant
    Filed: April 17, 1996
    Date of Patent: October 28, 1997
    Assignee: Ever Perfect Industries Limited
    Inventor: Ronnie Chi Wah Mak
  • Clock
    Patent number: D388715
    Type: Grant
    Filed: May 16, 1996
    Date of Patent: January 6, 1998
    Assignee: Ever Perfect Industries Limited
    Inventor: Ronnie Chi Wah Mak