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)
  • Ionic air purifier
    Patent number: D437400
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: February 6, 2001
    Assignee: Funix Company
    Inventor: Fu Cheng Chuan
  • Combined mirror and defogger
    Patent number: D438293
    Type: Grant
    Filed: February 23, 1999
    Date of Patent: February 27, 2001
    Inventor: Joey Louis Munoz, Jr.
  • Contamination control breather
    Patent number: D438606
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: March 6, 2001
    Assignee: Fluid Protection Corporation
    Inventor: Ronald R. Jackson
  • Air dryer
    Patent number: D503785
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: April 5, 2005
    Assignee: SMC Kabushiki Kaisha
    Inventor: Satoshi Otaki
  • Air dryer
    Patent number: D503786
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: April 5, 2005
    Assignee: SMC Kabushiki Kaisha
    Inventor: Satoshi Otaki
  • Contamination control breather
    Patent number: D439318
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: March 20, 2001
    Assignee: Fluid Protection Corporation
    Inventor: Ronald R. Jackson
  • Contamination control breather
    Patent number: D439644
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: March 27, 2001
    Assignee: Fluid Protection Corporation
    Inventor: Ronald R. Jackson
  • Automobile air ionizer
    Patent number: D440290
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: April 10, 2001
    Assignee: Sharper Image Corporation
    Inventor: Rene C. Pinchuk
  • Supply-air device
    Patent number: D445493
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: July 24, 2001
    Assignee: Air Innovation Sweden AB
    Inventor: Bernt Nyström
  • Blower filter unit
    Patent number: D449099
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: October 9, 2001
    Assignee: Hornell International AB
    Inventors: Oskar Juhlin, David Crafoord, Arne Linderstrand, Ingemar Westberg, Jonas Nordlöf
  • Air flow generator
    Patent number: D453560
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: February 12, 2002
    Assignee: American Biosystems, Inc.
    Inventor: Nicholas P. Van Brunt
  • Fog box
    Patent number: D453958
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: February 26, 2002
    Inventor: Michael V. Elkas
  • Air compressor for car use
    Patent number: D460166
    Type: Grant
    Filed: October 12, 2001
    Date of Patent: July 9, 2002
    Inventor: Min Hsieng Wang
  • Air compressor
    Patent number: D460543
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: July 16, 2002
    Inventor: Min-Hsieng Wang
  • Ionizer module
    Patent number: D464414
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: October 15, 2002
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshinori Sekoguchi, Haruhito Miyazaki
  • Flanged rotary atomizer
    Patent number: D464720
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: October 22, 2002
    Assignee: Wilevco, Inc.
    Inventor: Mark R. Lohkamp
  • Air purifier
    Patent number: D468820
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: January 14, 2003
    Assignee: Hamilton Beach/Proctor-Silex, Inc.
    Inventors: Michael E. Smith, Anthony V. Cruz
  • Ionizer
    Patent number: D472625
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: April 1, 2003
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshinori Sekoguchi, Haruhito Miyazaki
  • Personal airspace cleaner
    Patent number: D481784
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: November 4, 2003
    Assignee: Headwaters Research & Development, Inc.
    Inventors: Bjarki Hallgrimsson, Sarah Dobbin, Rudy A. Vandenbelt
  • Ion conditioner
    Patent number: D481785
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: November 4, 2003
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Takeo Koike
  • Ion conditioner
    Patent number: D482108
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: November 11, 2003
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Takeo Koike
  • Hot gas volatizing device
    Patent number: D489803
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: May 11, 2004
    Assignee: Alternative Delivery Systems Inc.
    Inventors: Stephen G. Nelson, Michael F. Bilotta
  • Portable air purifier
    Patent number: D495409
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: August 31, 2004
    Inventor: Li-Sheng Ke
  • Air treatment unit
    Patent number: D496451
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: September 21, 2004
    Assignee: Shaklee Corporation
    Inventors: John J. Julos, Craig M. Saunders, Jeffrey Kalman
  • Air cleaner
    Patent number: D496991
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: October 5, 2004
    Assignee: Team Plus Corporation
    Inventor: Ching-Hsien Yang
  • Air purifier
    Patent number: D402022
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: December 1, 1998
    Assignee: Hunter Fan Company
    Inventors: James David Termeer, Jill Marie Hunt, Masao Tsuji
  • Filter regulator unit
    Patent number: D402023
    Type: Grant
    Filed: October 2, 1997
    Date of Patent: December 1, 1998
    Assignee: Festo AG & Co.
    Inventors: Axel Thallemer, Jan Kleffmann
  • Panel filter construction
    Patent number: D402361
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: December 8, 1998
    Assignee: Donaldson Company, Inc.
    Inventors: Larry R. Nepsund, Kathleen A. Abrahamson, Thomas A. Boeckermann, James K. Elfstrand
  • Supply air device
    Patent number: D402743
    Type: Grant
    Filed: November 14, 1997
    Date of Patent: December 15, 1998
    Assignee: Air Innovation Sweden AB
    Inventor: Bernt Nystrom
  • Air purifier
    Patent number: D402745
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: December 15, 1998
    Assignee: Hunter Fan Company
    Inventors: James David Termeer, Jill Marie Hunt, Masao Tsuji
  • Portable air cleaner
    Patent number: D402746
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: December 15, 1998
    Assignee: Carrier Corporation
    Inventors: Gary L. Clark, Richard J. Duell, Stephen Stopyra, Carleton E. Saunders, IV, Pedro T. Diez, Javier E. Piraneque, Matthew D. Bantly
  • Containment basin, which can hold silt-collecting sock, sorbent material disc and locking sealing frame
    Patent number: D403059
    Type: Grant
    Filed: October 21, 1997
    Date of Patent: December 22, 1998
    Assignee: Imbibitive Technologies Corp.
    Inventors: Nicolo Flor, Harry F. Nicholson, Richard Kapuscinski
  • Linearly extending, multiple region containment basin which can hold silt-collecting filters, absorbent, and lower discs for absorbing organic spills
    Patent number: D403060
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: December 22, 1998
    Assignee: Imbibitive Technologies Corp.
    Inventors: Nicolo Flor, John Christopher Polis, Harry F. Nicholson
  • Filter basin, which can hold silt-collecting sock and sorbent material
    Patent number: D403418
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: December 29, 1998
    Assignee: Imbibitive Technologies Corp.
    Inventors: John S. Brinkman, Nicolo Flor, Richard Kapuscinski, Harry F. Nicholson
  • Body member for a housing for an air cleaner
    Patent number: D407475
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: March 30, 1999
    Assignee: Donaldson Company, Inc.
    Inventors: Paul R. Coulonvaux, Johan G. Dewit, Jeffrey J. Ivarson
  • Curative climate apparatus
    Patent number: D409738
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: May 11, 1999
    Assignee: SMB Schwede Maschinenbau GmbH
    Inventor: Roland Schwede
  • Air cleaner
    Patent number: D411294
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: June 22, 1999
    Inventor: Rudolf Gutmann
  • Portable air charge-discharge machine
    Patent number: D414254
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: September 21, 1999
    Assignee: Bulton Enterprises Co., Ltd.
    Inventor: Hsin-Tsai Wu
  • Air cleaner
    Patent number: D416318
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: November 9, 1999
    Assignee: Circland Corp.
    Inventor: Hisashi Sato
  • Fog box
    Patent number: D417726
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: December 14, 1999
    Inventor: Michael V. Elkas
  • Air handling apparatus
    Patent number: D421108
    Type: Grant
    Filed: March 1, 1999
    Date of Patent: February 22, 2000
    Assignee: Kooltronic, Inc.
    Inventors: James A. Esty, Boris L. Muzikant
  • Body member for a housing for an air cleaner
    Patent number: D421110
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: February 22, 2000
    Assignee: Donaldson Company, Inc.
    Inventors: Paul R. Coulonvaux, Johan G. Dewit, Jeffrey J. Ivarson
  • Laboratory evaporator device
    Patent number: D422689
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: April 11, 2000
    Inventor: Felix H. Yiu
  • Air cleaner
    Patent number: D423659
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: April 25, 2000
    Assignee: Honeywell Inc.
    Inventor: Robert Schippanoski
  • Air conditioning device
    Patent number: D424674
    Type: Grant
    Filed: September 25, 1997
    Date of Patent: May 9, 2000
    Inventor: Danijel Puc
  • Combined filter element and frame therefor
    Patent number: D425189
    Type: Grant
    Filed: April 6, 1998
    Date of Patent: May 16, 2000
    Assignee: Donaldson Company, Inc.
    Inventors: Gary R. Gillingham, Bernard A. Matthys, Joseph C. Tokar, Daniel T. Risch
  • Ozone generator for an automobile
    Patent number: D426627
    Type: Grant
    Filed: January 26, 1998
    Date of Patent: June 13, 2000
    Assignee: Dong Woo Tech Co., Ltd.
    Inventor: Soo Hwan Cho
  • Rollably positioned, adjustably directed, clean air supply assembly unit
    Patent number: D427299
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: June 27, 2000
    Inventor: William J. Haslebacher
  • Air cleaner
    Patent number: D427301
    Type: Grant
    Filed: November 17, 1999
    Date of Patent: June 27, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takashi Sato, Takako Tsubaki
  • Volatile dispenser
    Patent number: D433091
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: October 31, 2000
    Assignee: S. C. Johnson & Son, Inc.
    Inventors: Michael R. Carey, Vincent H. Bowman, Renata E. McLean, Tracy A. Bacilek, Aaron B. Eiger