John R. Frey

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Aurora, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Reduced gas holdup in ebullated reactor
- Patent number 5,443,718
- Issue date Aug 22, 1995
- Amoco Corporation
- Robert D. Buttke
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Reduced gas holdup in catalytic reactor
- Patent number 5,219,532
- Issue date Jun 15, 1993
- Amoco Corporation
- Robert D. Buttke
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Vapor collection and process for ebullated bed reactors
- Patent number 4,950,459
- Issue date Aug 21, 1990
- Amoco Corporation
- Robert D. Buttke
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for collecting vapor in ebullated bed reactors
- Patent number 4,804,458
- Issue date Feb 14, 1989
- Amoco Corporation
- Robert D. Buttke
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL