William C. Stewart

Follow

Person

Gladstone, OR, US

People

Patents Grantslast 30 patents

Information Patent Grant
Biological filter structures
- Patent number 6,551,818
- Issue date Apr 22, 2003
- Bio-Reaction Industries, LLC
- William C. Stewart
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Biological filter apparatus
- Patent number 6,479,276
- Issue date Nov 12, 2002
- Bio-Reaction Industries, LLC
- Randall R. Thom
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Pelletized composition for treatment of storm water runoff
- Patent number 5,624,576
- Issue date Apr 29, 1997
- CSF Treatment Systems, Inc.
- James H. Lenhart
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Biological treatment of hazardous waste
- Patent number 5,518,920
- Issue date May 21, 1996
- Bio-Reaction Industries, Inc.
- William C. Stewart
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Method and apparatus for treating storm water
- Patent number 5,322,629
- Issue date Jun 21, 1994
- W & H Pacific Inc.
- William C. Stewart
- E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents

Information Patent Application
Biological filter structures
- Publication number 20010053546
- Publication date Dec 20, 2001
- William C. Stewart
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL