Patents by Inventor Jon P. Knorr

Jon P. Knorr 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).

  • Low cost hearing protection device
    Patent number: 6970571
    Abstract: An earmuff comprising a headpiece and a circuit. The headpiece supports the earmuff on the head of an individual. The circuit has an input device for receiving external sound energy and converting the external sound energy to electrical sound signals.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: November 29, 2005
    Assignee: Jackson Products, Inc.
    Inventors: Jon P. Knorr, Benjamin P. Knapp
  • Low cost hearing protection device
    Publication number: 20030223612
    Abstract: An earmuff comprising a headpiece and a circuit. The headpiece supports the earmuff on the head of an individual. The circuit has an input device for receiving external sound energy and converting the external sound energy to electrical sound signals.
    Type: Application
    Filed: February 3, 2003
    Publication date: December 4, 2003
    Inventors: Jon P. Knorr, Benjamin P. Knapp