Patents by Inventor John P. Perkins

John P. Perkins 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).

  • Patent number: 9220942
    Abstract: A magnetometer and magnet are incorporated into a glove in order to measure the magnetic field between the two carrying an athletic movement such as a golf swing. The resulting magnetic field can be related to the distance between the magnet and the magnetometer in the wrist-joint angle, allowing a real time receptacle signal to be transmitted to the user when a proper wrist angel in achieved.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: December 29, 2015
    Assignee: W.A.T. SPORTS, LLC
    Inventors: Steven M. Serkiz, Matthew D. Folsom, John P. Perkins, Nicholas F. DeRoller
  • Patent number: 5231963
    Abstract: A device for increasing fuel efficiency in an internal combustion engine and for reducing emissions, including a rotor assembly positioned entirely within the manifold of the engine and including a post secured to the bottom of the manifold below the carburetor and mounting a freely rotatable rotor on the top of the post adjacent the carburetor opening of the manifold. The rotor includes a plurality of angled slots therethrough whereby the flow of the combustible mixture impels the rotor to spin. The spinning rotor causes the droplets of gasoline to further vaporize, thus boosting the fuel efficiency of the engine and reducing emissions.
    Type: Grant
    Filed: March 11, 1991
    Date of Patent: August 3, 1993
    Assignee: National Marketing Corp.
    Inventor: John P. Perkins