Patents by Inventor Carl M. Mattera

Carl M. Mattera 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).

  • Baseball training bat
    Patent number: D397385
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: August 25, 1998
    Inventors: Jeff M. LaBorde, Carl M. Mattera, Dean Brassfield