U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Surface and air sterilization using ultraviolet light and ultrasonic waves

Patent 6576188 Issued on June 10, 2003. Estimated Expiration Date: Icon_subject November 14, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2249473

2814081

3481687

3672823

Sterilization method
Patent #: 4448750
Issued on: 05/15/1984
Inventor: Fuesting

Structure of sterilizing hand dryer
Patent #: 5074322
Issued on: 12/24/1991
Inventor: Jaw

Apparatus and method for a bio-conditioning germicidal dryer
Patent #: 5216251
Issued on: 06/01/1993
Inventor: Matschke

Germicidal air filter
Patent #: 5330722
Issued on: 07/19/1994
Inventor: Pick, et al.

Sterilizing apparatus utilizing ultrasonic vibration
Patent #: 5449502
Issued on: 09/12/1995
Inventor: Igusa, et al.

Biological decontamination system
Patent #: 5466425
Issued on: 11/14/1995
Inventor: Adams

More ...

Inventors

Assignee

Application

No. 713096 filed on 11/14/2000

US Classes:

422/20, Using sonic or ultrasonic energy422/24, Ultraviolet422/121, With means exposing gas to electromagnetic wave energy or corpuscular radiation422/128Including supersonic or ultrasonic energy generation means

Examiners

Primary: McKane, Elizabeth

Attorney, Agent or Firm

Foreign Patent References

  • 35 00 487 DE. 10/13/1986
  • 0 083 448 EP. 07/13/1983
  • 0 673 656 EP. 09/13/1995
  • 2269275 FR. 11/13/1975
  • 2 599 255 FR. 12/13/1987
  • 671922 GB. 05/13/2012
  • 2 040 150 GB. 08/13/1980
  • 469009 IT. 02/13/2012
  • 2001187123 JP. 07/13/2012
  • WO 91 10455 WO. 08/13/1991
  • WO-0064818 WO. 11/13/2012

International Classes

A61L 002/025
A61L 002/10
A61L 009/20

Abstract

A method and apparatus for sterilizing organic or inorganic matter through simultaneous exposure to ultraviolet light energy and ultrasonic wave energy in a non-aqueous environment such as air. The method is suitable for use in a chamber or in a mass production assembly line setting. Purification of air is similarly accomplished using simultaneous exposure to ultraviolet light and ultrasonic energy waves.

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