Patents by Inventor John H. Schaffeld

John H. Schaffeld 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: D304726
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: November 21, 1989
    Assignees: American Telephone and Telegraph Company, AT&T Bell Laboratories
    Inventors: Richard R. Brooks, John H. Schaffeld
  • Patent number: D326098
    Type: Grant
    Filed: February 5, 1990
    Date of Patent: May 12, 1992
    Assignee: AT&T Bell Laboratories
    Inventors: Tor A. Alden, Gerard M. Cafferty, Ginhyun Cho, William Minko, John H. Schaffeld
  • Patent number: D348469
    Type: Grant
    Filed: January 27, 1992
    Date of Patent: July 5, 1994
    Assignee: AT&T Bell Laboratories
    Inventors: Chris G. Johnson, John H. Schaffeld, Richard J. Schneebeli, Jr., Gordon E. Sylvester
  • Patent number: D370486
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: June 4, 1996
    Assignee: AT&T Corp.
    Inventors: Michael J. Nuttall, Christopher A. Robinette, John H. Schaffeld
  • Patent number: D372718
    Type: Grant
    Filed: January 4, 1995
    Date of Patent: August 13, 1996
    Assignee: AT&T IPM Corp.
    Inventors: Mark Biasotti, Michael J. Nuttall, John H. Schaffeld
  • Patent number: D373361
    Type: Grant
    Filed: January 4, 1995
    Date of Patent: September 3, 1996
    Assignee: AT&T IDM Corp.
    Inventors: Mark Biasotti, Michael J. Nuttall, John H. Schaffeld
  • Patent number: D373772
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: September 17, 1996
    Assignee: AT&T IPM Corp.
    Inventors: Stephen E. Bennett, Mark Biasotti, Reed S. Brown, Michael J. Nuttall, John H. Schaffeld
  • Patent number: D374012
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: September 24, 1996
    Assignee: AT&T IPM Corp.
    Inventors: Stephen E. Bennett, Mark Biasotti, Reed S. Brown, Michael J. Nuttall, John H. Schaffeld