Patents by Inventor Lee Roy Lingerfelt

Lee Roy Lingerfelt 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: 10457217
    Abstract: Disclosed is a universal easy step apparatus configured for being quickly associated and removed from an existing step system such as the steps of a semi-trailer truck for a plurality of truck brands defining different step system configurations without the need for hardware modification to either the easy step or the truck. The easy step may further define a secure compartment for storing items. An electronic module may be disposed inside the electronic module to monitor various environment parameters and the truck driver and allow remote wireless access to the secure compartment.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: October 29, 2019
    Inventor: Lee Roy Lingerfelt