Patents by Inventor Gregory W. Langenfeld

Gregory W. Langenfeld 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).

  • Shelf
    Patent number: D532237
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: November 21, 2006
    Assignee: Laning Custom Design, Inc.
    Inventor: Gregory W. Langenfeld
  • Shelf
    Patent number: D540092
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: April 10, 2007
    Assignee: Laning Custom Design, Inc.
    Inventor: Gregory W. Langenfeld
  • Shelf
    Patent number: D541093
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: April 24, 2007
    Assignee: Laning Custom Design, Inc.
    Inventor: Gregory W. Langenfeld
  • Shelf
    Patent number: D544280
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: June 12, 2007
    Assignee: Laning Custom Design, Inc.
    Inventor: Gregory W. Langenfeld
  • Shelf
    Patent number: D435383
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: December 26, 2000
    Inventors: John W. Evans, Gregory W. Langenfeld, Lori L. Langenfeld