Richard D. Offeman

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Pinole, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Thin film composite membranes and their method of preparation and use
- Patent number 8,617,395
- Issue date Dec 31, 2013
- The United States of America, as represented by the Secretary of Agriculture
- Richard D Offeman
- B32 - LAYERED PRODUCTS
Information Patent Grant
Spiral-wound liquid membrane module for separation of fluids and gases
- Patent number 7,341,663
- Issue date Mar 11, 2008
- The United States of America as represented by the Secretary of Agriculture
- Richard D. Offeman
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
THIN FILM COMPOSITE MEMBRANES AND THEIR METHOD OF PREPARATION AND USE
- Publication number 20120080147
- Publication date Apr 5, 2012
- The United States of America, as Represented by the Secretary of Agriculture
- Richard D. Offeman
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Spiral-wound liquid membrane module for separation of fluids and gases
- Publication number 20060131235
- Publication date Jun 22, 2006
- The United States of America, as Represented by the Secretary of Agriculture
- Richard D. Offeman
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL