Ervin F. Portman

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Cary, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
Methods and apparatus for removing sediment from a liquid using pul...
- Patent number 6,913,689
- Issue date Jul 5, 2005
- Ervin F. Portman
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Methods and apparatus for removing sediment from a liquid using pul...
- Publication number 20020185458
- Publication date Dec 12, 2002
- Ervin F. Portman
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL