Patents by Inventor Robert G. Hantman

Robert G. Hantman 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).

  • Radiant energy incandescent lamp
    Patent number: 4839559
    Abstract: An electric incandescent lamp for selective radiant energy distribution is disclosed which employs a reflective film for improved efficiency of the lamp operation. Said lamp further employs a tungsten filament extending the length of its elongated lamp envelope with particular support means for said incandescent filament also being disclosed to precisely position the filament along the principal lamp axis. Various structural configurations for said particular support means are also disclosed so that such filament position is maintained regardless of the lamp spatial orientation.
    Type: Grant
    Filed: February 22, 1988
    Date of Patent: June 13, 1989
    Assignee: General Electric Company
    Inventors: Frederic F. Ahlgren, Rolf S. Bergman, John M. Davenport, Richard L. Hansler, Robert G. Hantman, Leonard E. Hoegler