Donald G. Wells

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Humble, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Particle control screen with depth filtration
- Patent number 7,497,257
- Issue date Mar 3, 2009
- Purolator Facet, Inc.
- Sam A. Hopkins
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Particle control screen with depth filtration
- Publication number 20070256834
- Publication date Nov 8, 2007
- Sam A. Hopkins
- E21 - EARTH DRILLING MINING
Information Patent Application
Method, apparatus and system for substantially reducing or eliminat...
- Publication number 20050045383
- Publication date Mar 3, 2005
- Simon D. Seaton
- E21 - EARTH DRILLING MINING