Patents by Inventor Edwin C. Laird

Edwin C. Laird 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).

  • Battery paste for lead-acid storage batteries
    Patent number: 4323470
    Abstract: A lead-acid storage battery paste containing an inorganic glass fiber extender or bulking agent up to 6.5% by weight of leady oxide. The extended negative active mass helps to reduce its lead content by about 14 weight % without affecting the lead-acid battery performance.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: April 6, 1982
    Assignee: Globe-Union Inc.
    Inventors: Basanta K. Mahato, Edwin C. Laird
  • Sandal
    Patent number: D329731
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: September 29, 1992
    Inventors: Bob E. Adcock, Edwin C. Laird