Domestic Water Heater Or Boiler Patents (Class D23/318)
Boiler (Class D23/319)
With door or access panel (Class D23/320)
With discharge valve or tap (Class D23/321)
Element (Class D23/322)
  • Instantaneous electric shower water heater
    Patent number: D459452
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: June 25, 2002
    Inventor: Byron Blanco, Jr.
  • Water heater
    Patent number: D532498
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: November 21, 2006
    Assignee: Rinnai Corporation
    Inventors: Katsunori Maegawa, Tetsuya Higuchi, Hiroaki Higashijima
  • Water heater
    Patent number: D485893
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: January 27, 2004
    Assignees: Haier Group Corporation, Qingdao Refrigeration Technology Research Institute
    Inventors: Guanglin Du, Jinjia Zhang
  • Water heater
    Patent number: D486896
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: February 17, 2004
    Assignee: The Coleman Company, Inc.
    Inventors: Norris R. Long, Mitchell L. Wilgus, Gary Israel
  • Water heater
    Patent number: D294288
    Type: Grant
    Filed: June 5, 1985
    Date of Patent: February 16, 1988
    Assignee: Zip Financial Inc.
    Inventor: Byron Blanco
  • Gas radiators
    Patent number: D492757
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: July 6, 2004
    Assignee: Fondital Fonderie Italiane Nuova Valsabbia S.p.A.
    Inventor: Ilario Niboli
  • Water heater
    Patent number: D300352
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: March 21, 1989
    Assignee: Sears, Roebuck & Company
    Inventor: John P. Ronvik
  • Water heating and pumping unit
    Patent number: D301038
    Type: Grant
    Filed: September 4, 1985
    Date of Patent: May 9, 1989
    Assignee: Hollibaugh Manufacturing Co., Inc.
    Inventor: James E. Kingston
  • Microwave-powered water heater
    Patent number: D301733
    Type: Grant
    Filed: October 7, 1986
    Date of Patent: June 20, 1989
    Inventor: Bentley Mansfield
  • Microwave-powered domestic hot water heater
    Patent number: D303704
    Type: Grant
    Filed: August 26, 1987
    Date of Patent: September 26, 1989
    Inventor: Don R. Cunningham
  • Solar water heater or the like
    Patent number: D310060
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: August 21, 1990
    Inventors: Angel M. Salgado, Harold L. Drury
  • Liquid heater which operates on solar energy or any other energy source
    Patent number: D324265
    Type: Grant
    Filed: February 8, 1989
    Date of Patent: February 25, 1992
    Assignee: Siddons Ramset Limited
    Inventors: Mark G. Fleming, David C. Collins
  • Combined water heater and space heater
    Patent number: D326712
    Type: Grant
    Filed: September 21, 1989
    Date of Patent: June 2, 1992
    Assignee: Mor-Flo Industries, Inc.
    Inventor: John M. Fabrizio
  • Water heater
    Patent number: D347274
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: May 24, 1994
    Assignee: Societe Elm Leblanc
    Inventor: Rene Prevost
  • Water heater
    Patent number: D351900
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: October 25, 1994
    Assignee: Societe Elm LeBlanc
    Inventor: Rene Prevot
  • Once-through heater
    Patent number: D356861
    Type: Grant
    Filed: January 28, 1994
    Date of Patent: March 28, 1995
    Assignee: Bosch-Siemens Hausgeraete GmbH
    Inventor: Gerhard Busalt
  • Combined low profile non-pressurized thermosyphon storage tank and collector unit of a solar water heater
    Patent number: D362056
    Type: Grant
    Filed: June 19, 1992
    Date of Patent: September 5, 1995
    Inventor: John D. Grandinetti
  • Inline water heater
    Patent number: D369402
    Type: Grant
    Filed: January 26, 1994
    Date of Patent: April 30, 1996
    Inventor: Richard E. Krishart
  • Electric water heater
    Patent number: D388868
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: January 6, 1998
    Assignee: State Industries, Inc.
    Inventors: Otto Z. Vago, Clifford Carlton, William M. Pryor
  • Gas-fired water heater
    Patent number: D400971
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: November 10, 1998
    Assignee: State Industries, Inc.
    Inventors: Otto Z. Vago, Clifford Carlton, William M. Pryor
  • Combined water cooler and heating unit
    Patent number: D410535
    Type: Grant
    Filed: December 10, 1996
    Date of Patent: June 1, 1999
    Assignee: Energy Converters, Inc.
    Inventor: Charles M. Eckman
  • Water heater tank
    Patent number: D421107
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: February 22, 2000
    Inventors: Barry Neild Jackson, Gary W. Gauer, John Ronvik