The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 2002
Filed:
Aug. 23, 2001
Applicant:
Inventors:
Randall R. Thom, Tualatin, OR (US);
Paul C. John, Beaverton, OR (US);
Charles S. Swift, Milwaukie, OR (US);
James Boswell, Montgomery, TX (US);
William C. Stewart, Gladstone, OR (US);
Assignee:
Bio-Reaction Industries, LLC, Tualatin, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61L 9/01 ;
U.S. Cl.
CPC ...
A61L 9/01 ;
Abstract
Air laden with biodegradable volatile organic compounds is passed sequentially through a first filter bed containing a biologically inert filter media and a second filter bed containing a biologically active filter media. Water is present in the biologically active filter media and the biologically inert filter media. Water that drains from the second filter bed is collected and supplied to the first filter bed.