Patents by Inventor Lai King Ma

Lai King 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).

  • Attachable portable lighting device and methods of operation
    Patent number: 8360594
    Abstract: A lighting device includes a housing, one or more light sources, one or more lenses and an attachment mechanism or clip. The housing includes a front end, a lower surface, and an upper surface. The one or more light sources are positioned at a front end of the housing. The one or more lenses are positioned proximate to the light sources. The clip or the attachment mechanism is coupled to the lower surface of the housing.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: January 29, 2013
    Assignee: Eveready Battery Company, Inc.
    Inventors: Earl K Sant, Lai King Ma, Frank F Huang
  • Lighting device
    Patent number: D642311
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: July 26, 2011
    Assignee: Eveready Battery Company, Inc.
    Inventor: Lai King Ma
  • Lighting device
    Patent number: D647229
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: October 18, 2011
    Assignee: Eveready Battery Company, Inc.
    Inventor: Lai King Ma
  • Lighting device
    Patent number: D696804
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: December 31, 2013
    Assignee: Eveready Battery Company, Inc.
    Inventor: Lai King Ma
  • Lighting device
    Patent number: D716482
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: October 28, 2014
    Assignee: Eveready Battery Company, Inc.
    Inventor: Lai King Ma
  • Lighting device
    Patent number: D716983
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: November 4, 2014
    Assignee: Eveready Battery Company, Inc.
    Inventor: Lai King Ma
  • Lighting device
    Patent number: D724771
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: March 17, 2015
    Assignee: Eveready Battery Company, Inc.
    Inventor: Lai King Ma
  • Lighting device
    Patent number: D734520
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: July 14, 2015
    Assignee: Eveready Battery Company, Inc.
    Inventor: Lai King Ma
  • Lighting device
    Patent number: D735393
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: July 28, 2015
    Assignee: Eveready Battery Company, Inc.
    Inventors: Brian J. Hennessey, Lai King Ma
  • Lighting device
    Patent number: D744137
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: November 24, 2015
    Assignee: ENERGIZER BRANDS, LLC
    Inventor: Lai King Ma
  • Lighting device
    Patent number: D744680
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: December 1, 2015
    Assignee: Energizer Brands, LLC
    Inventor: Lai King Ma
  • Lighting device
    Patent number: D750302
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: February 23, 2016
    Assignee: Energizer Brands, LLC
    Inventor: Lai King Ma
  • Lighting device
    Patent number: D752261
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: March 22, 2016
    Assignee: Energizer Brands, LLC
    Inventor: Lai King Ma
  • Lighting device
    Patent number: D763494
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: August 9, 2016
    Assignee: Energizer Brands, LLC
    Inventor: Lai King Ma
  • Lighting device
    Patent number: D766477
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: September 13, 2016
    Assignee: Energizer Brands, LLC
    Inventor: Lai King Ma
  • Tap light
    Patent number: D777367
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: January 24, 2017
    Assignee: ENERGIZER BRANDS, LLC
    Inventor: Lai King Ma
  • Lighting device
    Patent number: D783187
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: April 4, 2017
    Assignee: Energizer Brands, LLC
    Inventor: Lai King Ma
  • Lighting device
    Patent number: D809171
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: January 30, 2018
    Assignee: Energizer Brands, LLC
    Inventor: Lai King Ma
  • Handheld flashlight
    Patent number: D833661
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: November 13, 2018
    Assignee: Energizer Brands, LLC
    Inventor: Lai King Ma
  • Pen light
    Patent number: D844204
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: March 26, 2019
    Assignee: Energizer Brands, LLC
    Inventor: Lai King Ma