Fay A. Purvis

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Malvern, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
System and method for producing and maintaining predetermined propo...
- Patent number 5,823,219
- Issue date Oct 20, 1998
- National Foam, Inc.
- Fay A. Purvis
- G05 - CONTROLLING REGULATING
Information Patent Grant
Foam liquid concentrate supply system
- Patent number 4,436,487
- Issue date Mar 13, 1984
- Enterra Corporation
- Fay A. Purvis
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL