Oil Type Patents (Class D23/416)
  • Patent number: D435903
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: January 2, 2001
    Inventor: Ming Chih Wang
  • Patent number: D447554
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: September 4, 2001
    Assignee: Black Gold Corporation
    Inventors: Eugene C. Briggs, Wayne Robertson, Christopher L. Gansel
  • Patent number: D540938
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: April 17, 2007
    Assignee: R.W. Beckett Corporation
    Inventors: John P. Graham, Will Meibuhr, Martin J. Fabian, Frank J. Witkowski, III, Robert L. Naas, Len H. Nicholas, Howard Scott Ryan
  • Patent number: D297975
    Type: Grant
    Filed: October 20, 1986
    Date of Patent: October 4, 1988
    Assignee: Kitate Sangyo Co., Inc.
    Inventor: Isaburo Yamaguchi
  • Patent number: D331104
    Type: Grant
    Filed: March 5, 1990
    Date of Patent: November 17, 1992
    Assignee: Shennandoah Manufacturing Co., Inc.
    Inventor: Glenn Bender
  • Patent number: D342131
    Type: Grant
    Filed: July 19, 1991
    Date of Patent: December 7, 1993
    Inventor: Lloyd J. Westenberg
  • Patent number: D349956
    Type: Grant
    Filed: December 11, 1991
    Date of Patent: August 23, 1994
    Assignee: Wayne/Scott Fetzer Company
    Inventors: John M. Mulqueen, Harley B. Kaplan, James E. Wellman, Richard J. Ostroski
  • Patent number: D665901
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: August 21, 2012
    Assignee: Kärcher North America, Inc.
    Inventors: Paul Linton, Thomas E. Corsine, Zhakhary Polovin, Derek J. Knight
  • Patent number: D755945
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: May 10, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Toshikatsu Arai, Hitoshi Kikuchi, Tsutomu Takahashi, Tatsushi Murakami, Hiromichi Aoki, Tomoya Fukui
  • Patent number: D932001
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: September 28, 2021
    Inventors: Joonas Kattelus, Lassi Karvonen, Michele Danelon