Brian M. Francis

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Wichita Falls, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for forming double containment pipeline sections
- Patent number 7,166,177
- Issue date Jan 23, 2007
- Ameron International Corporation
- Ralph S. Friedrich
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Double containment pipe sections
- Patent number 6,026,862
- Issue date Feb 22, 2000
- Ameron International Corporation
- Ralph S. Friedrich
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Fiber-reinforced resin pipe having improved impact resistance
- Patent number 5,725,920
- Issue date Mar 10, 1998
- Ameron International Corporation
- Ralph S. Friedrich
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Method for forming double containment pipeline sections
- Publication number 20040089405
- Publication date May 13, 2004
- Ralph S. Friedrich
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...