Hahn; Granville J.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Hahn; Granville J..The latest application filed is for "rotary extruder with internally cooled rotor".

Company Profile

0.15.0

Hahn; Granville J. - Big Spring TX
Hahn; Granville J. - Dallas TX

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Rotary extruder with internally cooled rotor Grant 4,887,907 - Hahn , et al. December 19, 1	1989-12-19
Composition for plastic article with unitarily molded foam layer Grant 4,879,138 - Johnson , et al. November 7, 1	1989-11-07
Drying method and apparatus Grant 4,839,969 - Hahn June 20, 1	1989-06-20
Plastic closure with unitarily molded, foamed sealing layer Grant 4,744,478 - Hahn May 17, 1	1988-05-17
Heat exchanger apparatus for extruding thermoplastic compositions Grant 4,621,678 - Hahn , et al. November 11, 1	1986-11-11
Apparatus for forming multilayer thermoplastic resin extrusions Grant 4,611,987 - Hahn , et al. September 16, 1	1986-09-16
Plastic container with decreased gas permeability Grant 4,552,791 - Hahn November 12, 1	1985-11-12
Extrusion apparatus for producing thermoplastic pipe Grant 4,548,570 - Hahn , et al. October 22, 1	1985-10-22
Coextrusion process for producing multiple layered thermoplastic pipe Grant 4,499,041 - Hahn , et al. February 12, 1	1985-02-12
Method for producing biaxially oriented hollow articles Grant 4,496,408 - Hahn January 29, 1	1985-01-29
Valve plate and feedblock design for co-extrusion apparatus and co-extrusion process using same Grant 4,483,812 - Hahn , et al. November 20, 1	1984-11-20
Methods for improving the gas barrier properties of polymeric containers Grant 4,478,874 - Hahn October 23, 1	1984-10-23
Multiple-layered sheeting apparatus and process therefor Grant 4,443,397 - Hahn , et al. April 17, 1	1984-04-17
Method for blow molding foamed walled plastic open mouthed containers Grant 3,939,236 - Hahn February 17, 1	1976-02-17
Polymer Pigmentation Grant 3,632,369 - Hahn January 4, 1	1972-01-04

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.