Patents by Inventor John H. Preston

John H. Preston 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).

  • Publication number: 20240097346
    Abstract: Methods for constructing multi-walled carbon nanotube (MWCNT) antenna arrays, may include: variable doping of the MWCNTs, forming light pipes with layers of variable dielectric glass, forming geometric diodes on full-wave rectified devices that propagate both electrons and holes, using clear conductive ground plans to form windows that can control a building's internal temperature, and generating multiple lithographic patterns with a single mask.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 21, 2024
    Inventors: Laurence H. COOKE, Darin S. OLSON, Paul COMITA, Robert E. COUSINS, Albert K. HENNING, Andreas HEGEDUS, David B. COOKE, Yao Te CHENG, John BURKE, Richard T. PRESTON
  • Patent number: 4735340
    Abstract: This invention relates to a bracket for retaining and supporting limp plastic bags as liners in a trash receptacle. The bracket includes leg means for clamping onto the upper rim of the trash receptacle and includes two or more projections, upwardly extending, to engage openings within said limp flexible plastic liner for holding and retaining said liner in the trash receptacle.
    Type: Grant
    Filed: December 19, 1986
    Date of Patent: April 5, 1988
    Inventor: John H. Preston