Granville J. Hahn

Person

Big Spring, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for controlling rotary extruder
- Patent number 5,045,252
- Issue date Sep 3, 1991
- Permian Research Corporation
- Granville J. Hahn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Rotary extruder with internally heated rotor
- Patent number 5,033,861
- Issue date Jul 23, 1991
- Permian Research Corp.
- Granville J. Hahn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method for retarding mineral buildup in downhole pumps
- Patent number 4,990,233
- Issue date Feb 5, 1991
- Permian Research Corporation
- Granville Hahn
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Drying method
- Patent number 4,974,336
- Issue date Dec 4, 1990
- Permian Research Corporation
- Granville J. Hahn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Rotary extruder with internally cooled rotor
- Patent number 4,887,907
- Issue date Dec 19, 1989
- Permian Research Corporation
- Granville J. Hahn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Composition for plastic article with unitarily molded foam layer
- Patent number 4,879,138
- Issue date Nov 7, 1989
- Permian Research Corporation
- Marion Johnson
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Plastic closure with barrier coating
- Patent number 4,872,573
- Issue date Oct 10, 1989
- Permian Research Corporation
- Marion Johnson
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Composition for plastic article with unitarily molded foam layer
- Patent number 4,866,100
- Issue date Sep 12, 1989
- Permian Research Corporation
- Marion Johnson
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Drying method and apparatus
- Patent number 4,839,969
- Issue date Jun 20, 1989
- Permian Research Corporation
- Granville J. Hahn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Rotary extruder with a gear pump
- Patent number 4,813,863
- Issue date Mar 21, 1989
- Permian Research Corporation
- Granville J. Hahn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Plastic closure with unitarily molded, foamed sealing layer
- Patent number 4,744,478
- Issue date May 17, 1988
- Permian Research Corporation
- Granville J. Hahn
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Foamed polymer tubing
- Patent number 4,713,271
- Issue date Dec 15, 1987
- Cosden Technology, Inc.
- Alonzo H. Searl
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Heat exchanger apparatus for extruding thermoplastic compositions
- Patent number 4,621,678
- Issue date Nov 11, 1986
- Cosden Technology, Inc.
- Granville J. Hahn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Apparatus for forming multilayer thermoplastic resin extrusions
- Patent number 4,611,987
- Issue date Sep 16, 1986
- Cosden Technology, Inc.
- Granville J. Hahn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Plastic container with decreased gas permeability
- Patent number 4,552,791
- Issue date Nov 12, 1985
- Cosden Technology, Inc.
- Granville J. Hahn
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Extrusion apparatus for producing thermoplastic pipe
- Patent number 4,548,570
- Issue date Oct 22, 1985
- Cosden Technology, Inc.
- Granville J. Hahn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process and apparatus for manufacturing flexible foamed articles
- Patent number 4,526,736
- Issue date Jul 2, 1985
- Cosden Technology, Inc.
- Alonzo H. Searl
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Multiple heat exchanger distribution apparatus
- Patent number 4,512,395
- Issue date Apr 23, 1985
- Cosden Technology, Inc.
- Granville J. Hahn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Extrusion process for producing thermoplastic pipe
- Patent number 4,512,943
- Issue date Apr 23, 1985
- Cosden Technology, Inc.
- Granville J. Hahn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Coextrusion apparatus for producing multiple layered thermoplastic...
- Patent number 4,507,071
- Issue date Mar 26, 1985
- Cosden Technology, Inc.
- Granville J. Hahn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Rotary extruder
- Patent number 4,501,543
- Issue date Feb 26, 1985
- Cosden Technology, Inc.
- Raleigh N. Rutledge
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Coextrusion process for producing multiple layered thermoplastic pipe
- Patent number 4,499,041
- Issue date Feb 12, 1985
- Cosden Technology, Inc.
- Granville J. Hahn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method for producing biaxially oriented hollow articles
- Patent number 4,496,408
- Issue date Jan 29, 1985
- Cosden Technology, Inc.
- Granville J. Hahn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Valve plate and feedblock design for co-extrusion apparatus and co-...
- Patent number 4,483,812
- Issue date Nov 20, 1984
- Cosden Technology, Inc.
- Granville J. Hahn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Multiple-layered sheeting apparatus
- Patent number 4,483,669
- Issue date Nov 20, 1984
- Cosden Technology, Inc.
- Granville J. Hahn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Methods for improving the gas barrier properties of polymeric conta...
- Patent number 4,478,874
- Issue date Oct 23, 1984
- Cosden Technology, Inc.
- Granville J. Hahn
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for extruding thermoplastic compositions
- Patent number 4,469,651
- Issue date Sep 4, 1984
- Cosden Technology, Inc.
- Granville J. Hahn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process and apparatus for manufacturing flame retardant flexible fo...
- Patent number 4,451,586
- Issue date May 29, 1984
- Cosden Technology, Inc.
- Alonzo H. Searl
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Multiple-layered sheeting apparatus and process therefor
- Patent number 4,443,397
- Issue date Apr 17, 1984
- Cosden Technology, Inc.
- Granville J. Hahn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Granville J. Hahn

Person

Patents Grantslast 30 patents

Method and apparatus for controlling rotary extruder

Rotary extruder with internally heated rotor

Method for retarding mineral buildup in downhole pumps

Drying method

Rotary extruder with internally cooled rotor

Composition for plastic article with unitarily molded foam layer

Plastic closure with barrier coating

Composition for plastic article with unitarily molded foam layer

Drying method and apparatus

Rotary extruder with a gear pump

Plastic closure with unitarily molded, foamed sealing layer

Foamed polymer tubing

Heat exchanger apparatus for extruding thermoplastic compositions

Apparatus for forming multilayer thermoplastic resin extrusions

Plastic container with decreased gas permeability

Extrusion apparatus for producing thermoplastic pipe

Process and apparatus for manufacturing flexible foamed articles

Multiple heat exchanger distribution apparatus

Extrusion process for producing thermoplastic pipe

Coextrusion apparatus for producing multiple layered thermoplastic...

Rotary extruder

Coextrusion process for producing multiple layered thermoplastic pipe

Method for producing biaxially oriented hollow articles

Valve plate and feedblock design for co-extrusion apparatus and co-...

Multiple-layered sheeting apparatus

Methods for improving the gas barrier properties of polymeric conta...

Process for extruding thermoplastic compositions

Process and apparatus for manufacturing flame retardant flexible fo...

Multiple-layered sheeting apparatus and process therefor