Frank T. Prendergast

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Woodridge, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Liquid delivery systems
- Patent number 5,590,686
- Issue date Jan 7, 1997
- Dober Chemical Corp.
- Frank T. Prendergast
- G05 - CONTROLLING REGULATING
Information Patent Grant
System and method to control laundry waste water treatment
- Patent number 5,531,905
- Issue date Jul 2, 1996
- Dober Chemical Corporation
- John G. Dobrez
- G05 - CONTROLLING REGULATING