Raymond G. Rohlfing

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Bartlesville, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Rotary valve
- Patent number 4,773,626
- Issue date Sep 27, 1988
- Phillips Petroleum Company
- Raymond G. Rohlfing
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Rotary valve
- Patent number 4,773,565
- Issue date Sep 27, 1988
- Phillips Petroleum Company
- Raymond G. Rohlfing
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Rotary valve
- Patent number 4,767,028
- Issue date Aug 30, 1988
- Phillips Petroleum Company
- Raymond G. Rohlfing
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Catalyst feed system
- Patent number 4,690,804
- Issue date Sep 1, 1987
- Phillips Petroleum Company
- Raymond G. Rohlfing
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method for mixing and transferring polymer-coated catalyst composit...
- Patent number 4,563,665
- Issue date Jan 7, 1986
- Phillips Petroleum Company
- Raymond G. Rohlfing
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Rotary valve
- Patent number 4,501,286
- Issue date Feb 26, 1985
- Phillips Petroleum Company
- Raymond G. Rohlfing
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...