Patents by Inventor Zhiwei Xu

Zhiwei Xu 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).

  • Portable room air purifier
    Patent number: 6036757
    Abstract: A portable air purifier including a housing defining an air inlet, an air outlet and an air flow passage extending therebetween; a filter mechanism disposed to filter air circulating through the flow passage; and a fan retained by the housing and activatable to draw air through the air inlet, move air through the flow passage and filter mechanism, and discharge air through the air outlet. An electrically powered drive mechanism is energizable to activate the fan and a control system including a processor monitors and records elapsed time data during periods in which the fan is activated to move air.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: March 14, 2000
    Assignee: Honeywell Inc.
    Inventors: Stephen M. Gatchell, Zhiwei Xu
  • Portable space heater
    Patent number: D384733
    Type: Grant
    Filed: July 24, 1996
    Date of Patent: October 7, 1997
    Assignee: Duracraft Corp.
    Inventors: Rodney Jane, Stephen Boyle, Zhiwei Xu, Jui-Shang Wang, Walter Birdsell, Richard O'Grady, W. Dan Haberstich
  • Portable space heater
    Patent number: D395490
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: June 23, 1998
    Assignee: Honeywell Consumer Products, Inc.
    Inventors: Rodney Jane', Stephan Boyle, Zhiwei Xu, Richard O'Grady, Walter Birdsell, Aaron Szymanski
  • Portable electric heater
    Patent number: D405171
    Type: Grant
    Filed: August 27, 1996
    Date of Patent: February 2, 1999
    Assignee: Honeywell Consumer Products, Inc.
    Inventors: Rodney Jane, Stephan Boyle, Zhiwei Xu, Walter Birdsell, Steven L. Hecker, Stanley Gresens, Kenneth David Harris, Jr.
  • Air cleaner
    Patent number: D416317
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: November 9, 1999
    Assignee: Honeywell Inc.
    Inventors: Kimberly Bellil, Stephen M. Gatchell, Zhiwei Xu, Scott W. Osiecki, Ronald J. Kingston, Timothy R. Fitch
  • Air cleaner
    Patent number: D416613
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: November 16, 1999
    Assignee: Honeywell Inc.
    Inventors: Kimberly Bellil, Stephen M. Gatchell, Zhiwei Xu, Scott W. Osiecki, Timothy R. Fitch, Gregg W. Harvey
  • Air cleaner
    Patent number: D422070
    Type: Grant
    Filed: May 7, 1999
    Date of Patent: March 28, 2000
    Assignee: Honeywell Inc.
    Inventors: Kimberly Bellil, Stephen M. Gatchell, Zhiwei Xu, Scott W. Osiecki, Ronald J. Kingston, Timothy R. Fitch
  • Finial
    Patent number: D430002
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: August 29, 2000
    Assignee: Beme International LLC
    Inventors: Brain Graves, Zhiwei Xu
  • Finial
    Patent number: D430003
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: August 29, 2000
    Assignee: Beme International, LLC
    Inventors: Brain Graves, Zhiwei Xu
  • Finial
    Patent number: D430004
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: August 29, 2000
    Assignee: Beme International, LLC
    Inventors: Brain Graves, Zhiwei Xu
  • Finial
    Patent number: D430481
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: September 5, 2000
    Assignee: Beme International LLC
    Inventors: Brain Graves, Zhiwei Xu
  • Finial
    Patent number: D431452
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: October 3, 2000
    Assignee: Beme International LLC
    Inventors: Brain Graves, Zhiwei Xu