Inventor

HAHN GRANVILLE J

US30 patents

⚠️ This page may combine multiple inventors who share the name “HAHN GRANVILLE J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HAHN GRANVILLE J

COSDEN TECHNOLOGY

Plastic container with decreased gas permeability

Foamed polymer tubing

Extrusion apparatus for producing thermoplastic pipe

Method for producing biaxially oriented hollow articles

Methods for improving the gas barrier properties of polymeric containers

Multiple-layered sheeting apparatus and process therefor

Heat exchanger apparatus for extruding thermoplastic compositions

Extrusion process for producing thermoplastic pipe

Rotary extruder

Process for extruding thermoplastic compositions

Coextrusion apparatus for producing multiple layered thermoplastic pipe

Coextrusion process for producing multiple layered thermoplastic pipe

Valve plate and feedblock design for co-extrusion apparatus and co-extrusion process using same

Multiple-layered sheeting apparatus

Process and apparatus for manufacturing flexible foamed articles

Process and apparatus for manufacturing flame retardant flexible foamed articles

Apparatus for forming multilayer thermoplastic resin extrusions

Multiple heat exchanger distribution apparatus

PERMIAN RES CORP

Plastic closure with unitarily molded, foamed sealing layer

Drying method

Plastic closure with barrier coating

Drying method and apparatus

Rotary extruder with internally cooled rotor

Composition for plastic article with unitarily molded foam layer

Composition for plastic article with unitarily molded foam layer

Rotary extruder with a gear pump

Rotary extruder with internally heated rotor

Method and apparatus for controlling rotary extruder

COSDEN OIL & CHEM CO

Method for blow molding foamed walled plastic open mouthed containers

Method and apparatus for blow molding plastic