Ronald D. Stefanski

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Aurora, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and process for the separation of solids and liquids
- Patent number 8,962,906
- Issue date Feb 24, 2015
- BP Corporation North America Inc.
- Richard A Wilsak
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Solid-liquid separation process
- Patent number 8,211,319
- Issue date Jul 3, 2012
- BP Corporation North America Inc.
- Richard A. Wilsak
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Apparatus and process for the separation of solids and liquids
- Patent number 7,812,206
- Issue date Oct 12, 2010
- BP Corporation North America Inc.
- Richard A. Wilsak
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Apparatus and Process for the Separation of Solids and Liquids
- Publication number 20110006008
- Publication date Jan 13, 2011
- BP Corporation North America Inc.
- Richard A Wilsak
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Apparatus and Process for the Separation of Solids and Liquids
- Publication number 20070225539
- Publication date Sep 27, 2007
- Richard A. Wilsak
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Solid-liquid separation process
- Publication number 20050056599
- Publication date Mar 17, 2005
- Richard A. Wilsak
- C07 - ORGANIC CHEMISTRY