Larry Steven Coffman

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Bowie, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Stormwater bioretention filtration system with overflow/bypass capa...
- Patent number 7,625,485
- Issue date Dec 1, 2009
- Americast, Inc.
- Terry Lee Siviter
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Stormwater bioretention filtration system with overflow/bypass capa...
- Patent number 7,425,261
- Issue date Sep 16, 2008
- Americast, Inc.
- Terry Lee Siviter
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method and apparatus for treating stormwater runoff
- Patent number 6,569,321
- Issue date May 27, 2003
- Larry Steven Coffman
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method and apparatus for treating stormwater runoff
- Patent number 6,277,274
- Issue date Aug 21, 2001
- Larry Steven Coffman
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
Stormwater bioretention filtration system with overflow/bypass capa...
- Publication number 20090014372
- Publication date Jan 15, 2009
- Americast, Inc.
- Terry Lee Siviter
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Stormwater bioretention filtration system with overflow/bypass capa...
- Publication number 20070256966
- Publication date Nov 8, 2007
- Terry Lee Siviter
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Method and apparatus for treating stormwater runoff
- Publication number 20010045383
- Publication date Nov 29, 2001
- Larry Steven Coffman
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL