Air Treatment Patents (Class D23/355)
Humidifier (Class D23/356)
Dehumidifier (Class D23/359)
Vaporizer (Class D23/360)
Air cleaner (Class D23/364)
Deodorizer or ozonizer (28) (Class D23/366)
Fan or ventilator (Class D23/370)
Wall or ceiling mount (24) (Class D23/385)
  • Combined air filter and cleaner unit
    Patent number: D295216
    Type: Grant
    Filed: October 30, 1986
    Date of Patent: April 12, 1988
    Assignee: D. Morris Sheet Metal, Inc.
    Inventors: David H. Morris, Douglas D. Morris
  • Combined air filteration housing and conveyor unit
    Patent number: D295567
    Type: Grant
    Filed: April 1, 1985
    Date of Patent: May 3, 1988
    Assignee: Shuttleworth, Inc.
    Inventors: Rutherford L. Cooper, Brian D. Walter
  • Natural gas purification unit
    Patent number: D295673
    Type: Grant
    Filed: July 22, 1985
    Date of Patent: May 10, 1988
    Inventors: Roger J. Anderson, Jeffrey R. Anderson
  • Air treatment unit
    Patent number: D296129
    Type: Grant
    Filed: May 27, 1986
    Date of Patent: June 7, 1988
    Assignee: Amway Corporation
    Inventors: Gordon W. Goodrich, Paul J. Kudirka
  • Air ionizer
    Patent number: D326512
    Type: Grant
    Filed: January 9, 1991
    Date of Patent: May 26, 1992
    Assignee: Elexis Corporation
    Inventor: Frank J. Bianco
  • Small volume ion chamber
    Patent number: D327121
    Type: Grant
    Filed: February 14, 1991
    Date of Patent: June 16, 1992
    Assignee: Rad Elec, Inc.
    Inventors: Robert W. Ramsey, Jr., Payasada Kotrappa
  • Air treatment unit or similar article
    Patent number: D327315
    Type: Grant
    Filed: February 8, 1991
    Date of Patent: June 23, 1992
    Assignee: Pelko Electric Corporation
    Inventor: Kosta L. Pelonis
  • Combined dryer and defogger for a bathroom mirror
    Patent number: D347275
    Type: Grant
    Filed: October 7, 1991
    Date of Patent: May 24, 1994
    Inventor: Russell G. Lovell
  • Heat pump
    Patent number: D348727
    Type: Grant
    Filed: January 3, 1992
    Date of Patent: July 12, 1994
    Assignee: Consolidated Technology Corporation
    Inventor: Kevin W. Sawyer
  • Combined spherical venturi blower head and ionizer for use in discharging static electricity
    Patent number: D355250
    Type: Grant
    Filed: May 20, 1993
    Date of Patent: February 7, 1995
    Inventor: Walter Spengler
  • Unit for removing dust from industrial equipment by substantially increasing air flow
    Patent number: D358875
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: May 30, 1995
    Inventor: Walter Spengler
  • Bathroom mirror defogger unit
    Patent number: D364225
    Type: Grant
    Filed: June 10, 1993
    Date of Patent: November 14, 1995
    Inventor: Martin W. Canney
  • Portable room air purifier with flush vertical grid one-piece cover and shroud
    Patent number: D365388
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: December 19, 1995
    Assignee: Honeywell Inc.
    Inventor: Paul B. Williams
  • Portable room air purifier with horizontal grid one-piece cover and shroud
    Patent number: D365389
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: December 19, 1995
    Assignee: Honeywell Inc.
    Inventor: Paul B. Williams
  • Air ionizer
    Patent number: D370253
    Type: Grant
    Filed: August 22, 1994
    Date of Patent: May 28, 1996
    Assignee: John Manufacturing Limited
    Inventor: Se Kit Yuen
  • Combined air cleaner and humidifier
    Patent number: D372078
    Type: Grant
    Filed: April 21, 1993
    Date of Patent: July 23, 1996
    Assignee: Holmes Products Corp.
    Inventor: Joseph M. Cunning
  • Air ionizing ring
    Patent number: D373183
    Type: Grant
    Filed: December 8, 1994
    Date of Patent: August 27, 1996
    Assignee: Richmond Technology, Inc.
    Inventor: Douglas H. Beyer
  • Plug-in ionizer
    Patent number: D373416
    Type: Grant
    Filed: October 17, 1994
    Date of Patent: September 3, 1996
    Assignee: Jing Mei Industrial Holdings, Ltd.
    Inventors: Joseph E. Ford, Ronald O. Hilger, Raymond Chan
  • Air purifying baffle
    Patent number: D373625
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: September 10, 1996
    Inventor: Manuel G. Pereira
  • Air cleaner
    Patent number: D374279
    Type: Grant
    Filed: August 15, 1995
    Date of Patent: October 1, 1996
    Assignee: Duracraft Corporation
    Inventors: Bernard Chiu, Robert Marvin, Richard O'Grady
  • Plug-in ionizer
    Patent number: D374713
    Type: Grant
    Filed: October 19, 1995
    Date of Patent: October 15, 1996
    Assignee: Jing Mei Industrial Holdings, Ltd.
    Inventors: Joseph E. Ford, Ronald O. Hilger, Raymond Chan
  • Air purifier
    Patent number: D375546
    Type: Grant
    Filed: December 27, 1995
    Date of Patent: November 12, 1996
    Assignee: Myoung Woull Electronics Co., Ltd.
    Inventor: Keun M. Lee
  • Air cleaner
    Patent number: D377213
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: January 7, 1997
    Assignee: Yih Chang Enterprise Co., Ltd.
    Inventor: Hung-Hsia Wang
  • Gas feeder
    Patent number: D377522
    Type: Grant
    Filed: August 22, 1995
    Date of Patent: January 21, 1997
    Assignee: CKD Kabushiki Kaisha
    Inventor: Hiroshi Itafuji
  • Air cleaner
    Patent number: D377523
    Type: Grant
    Filed: August 15, 1995
    Date of Patent: January 21, 1997
    Assignee: Duracraft Corp.
    Inventors: Robert Marvin, John Staton, Brian Graves, Andrew Parker
  • Air purifier
    Patent number: D377974
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: February 11, 1997
    Inventor: Robert E. Wasser
  • Air cleaner
    Patent number: D379219
    Type: Grant
    Filed: September 21, 1995
    Date of Patent: May 13, 1997
    Assignee: U.S. Philips Corporation
    Inventor: Iain P. Ellwood
  • Air cleaner
    Patent number: D379220
    Type: Grant
    Filed: September 21, 1995
    Date of Patent: May 13, 1997
    Assignee: U.S. Philips Corporation
    Inventor: Iain P. Ellwood
  • Air cylinder housing
    Patent number: D380042
    Type: Grant
    Filed: June 26, 1995
    Date of Patent: June 17, 1997
    Inventor: Lawrence F. Yuda
  • Combined filter cartridge and lid therefor
    Patent number: D380535
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: July 1, 1997
    Inventor: Carsten Joergensen
  • Diffusion hazer
    Patent number: D381740
    Type: Grant
    Filed: November 7, 1995
    Date of Patent: July 29, 1997
    Inventors: Michael W. Wood, Byron J. Ziegler, Richard S. Belliveau, Mark A. Stultz
  • Air treatment apparatus
    Patent number: D386564
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: November 18, 1997
    Assignee: Reckitt & Colman Products Limited
    Inventor: Damian Mycroft