Ben Duh

Person

Tallmadge, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Reduction of friability of poly(trimethylene terephthalate)
- Patent number 6,610,819
- Issue date Aug 26, 2003
- Shell Oil Company
- Ben Duh
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Apparatus for crystallization of polytrimethylene terephthalate
- Patent number 6,461,575
- Issue date Oct 8, 2002
- Shell Oil Company
- Ben Duh
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
High temperature solid state polymerization of poly (trimethylene t...
- Patent number 6,441,129
- Issue date Aug 27, 2002
- Shell Oil Company
- Ben Duh
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Solid state polymerization process for poly(trimethylene terephthal...
- Patent number 6,403,762
- Issue date Jun 11, 2002
- Shell Oil Company
- Ben Duh
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for preparing polytrimethylene terephthalate
- Patent number 6,297,315
- Issue date Oct 2, 2001
- Shell Oil Company
- Ben Duh
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for crystallizing polyethylene naphthalate copolymers in th...
- Patent number 6,124,423
- Issue date Sep 26, 2000
- Shell Oil Company
- Ben Duh
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process to prepare a polyester resin
- Patent number 6,113,997
- Issue date Sep 5, 2000
- Shell Oil Company
- Freddie Lee Massey
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for the crystallization of polyethylene naphthalate prepoly...
- Patent number 5,750,644
- Issue date May 12, 1998
- Shell Oil Company
- Ben Duh
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for the crystallization of polyethylene naphthalate prepoly...
- Patent number 5,744,578
- Issue date Apr 28, 1998
- Shell Oil Company
- Ben Duh
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Solid state polymerization process for foamed poly(ethylene naphtha...
- Patent number 5,478,868
- Issue date Dec 26, 1995
- Shell Oil Company
- Ben Duh
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Solid state polymerization process for foamed poly(ethylene naphtha...
- Patent number 5,449,701
- Issue date Sep 12, 1995
- Shell Oil Company
- Ben Duh
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Solid state polymerization of polyesters with low diffusion resista...
- Patent number 5,412,063
- Issue date May 2, 1995
- Shell Oil Company
- Ben Duh
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Solid state polymerization
- Patent number 5,408,035
- Issue date Apr 18, 1995
- Shell Oil Company
- Ben Duh
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Solid state polymerization of polyesters with low diffusion resista...
- Patent number 5,391,694
- Issue date Feb 21, 1995
- Shell Oil Company
- Ben Duh
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for crystallization of polyethylene naphthalate
- Patent number 4,963,644
- Issue date Oct 16, 1990
- The Goodyear Tire & Rubber Company
- Ben Duh
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of high molecular weight polyester
- Patent number 4,374,975
- Issue date Feb 22, 1983
- The Goodyear Tire & Rubber Company
- Ben Duh
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for production of a high molecular weight polyester prepared...
- Patent number 4,238,593
- Issue date Dec 9, 1980
- The Goodyear Tire & Rubber Company
- Ben Duh
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for production of high molecular weight polyester with low c...
- Patent number 4,205,157
- Issue date May 27, 1980
- The Goodyear Tire & Rubber Company
- Ben Duh
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Reduction of friability of poly (trimethylene terephthalate)
- Publication number 20030055204
- Publication date Mar 20, 2003
- Ben Duh
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
SOLID STATE POLYMERIZATION PROCESS FOR POLY (TRIMETHYLENE TEREPHTHA...
- Publication number 20020026030
- Publication date Feb 28, 2002
- Ben Duh
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
High temperature solid state polymerization of poly (trimethylene t...
- Publication number 20010056172
- Publication date Dec 27, 2001
- Ben Duh
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Person

Patents Grantslast 30 patents

Reduction of friability of poly(trimethylene terephthalate)

Apparatus for crystallization of polytrimethylene terephthalate

High temperature solid state polymerization of poly (trimethylene t...

Solid state polymerization process for poly(trimethylene terephthal...

Process for preparing polytrimethylene terephthalate

Process for crystallizing polyethylene naphthalate copolymers in th...

Process to prepare a polyester resin

Process for the crystallization of polyethylene naphthalate prepoly...

Process for the crystallization of polyethylene naphthalate prepoly...

Solid state polymerization process for foamed poly(ethylene naphtha...

Solid state polymerization process for foamed poly(ethylene naphtha...

Solid state polymerization of polyesters with low diffusion resista...

Solid state polymerization

Solid state polymerization of polyesters with low diffusion resista...

Process for crystallization of polyethylene naphthalate

Process for the production of high molecular weight polyester

Method for production of a high molecular weight polyester prepared...

Method for production of high molecular weight polyester with low c...

Patents Applicationslast 30 patents

Reduction of friability of poly (trimethylene terephthalate)

SOLID STATE POLYMERIZATION PROCESS FOR POLY (TRIMETHYLENE TEREPHTHA...

High temperature solid state polymerization of poly (trimethylene t...