Frank Schiffman

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Pittsburgh, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Chemical feeder
- Patent number 9,540,265
- Issue date Jan 10, 2017
- Axiall Ohio, Inc.
- Richard H. Ferguson
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Chemical feeder
- Patent number 7,081,232
- Issue date Jul 25, 2006
- PPG Industries, Ohio, Inc.
- Gerard F. Dooley, Jr.
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
Chemical Feeder
- Publication number 20150284274
- Publication date Oct 8, 2015
- Axiall Ohio, Inc.
- Richard H. Ferguson
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE