Doetze Jakob Sikkema

Person

Richmond, VA, US

People

Patents Grantslast 30 patents

Information Patent Grant
High inherent viscosity polymers and fibers therefrom
- Patent number 8,263,221
- Issue date Sep 11, 2012
- Magellan Systems International, LLC
- Doetze Jakob Sikkema
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for hydrolyzing polyphosphoric acid in a spun yarn
- Patent number 7,906,615
- Issue date Mar 15, 2011
- Magellan Systems International, LLC
- Steven R Allen
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Process for removing cations from polyareneazole fiber
- Patent number 7,906,613
- Issue date Mar 15, 2011
- Magellan Systems International, LLC
- Doetze Jakob Sikkema
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Process for removing phosphorous from a fiber or yarn
- Patent number 7,888,457
- Issue date Feb 15, 2011
- E. I. Du Pont de Nemours and Company
- Steven R Allen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of polyarenazole yarn
- Patent number 7,776,246
- Issue date Aug 17, 2010
- E. I. Du Pont de Nemours and Company
- Steven R Allen
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Process for the production of polyarenazole polymer
- Patent number 7,683,157
- Issue date Mar 23, 2010
- E. I. Du Pont de Nemours and Company
- Steven R. Allen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Processes for increasing polymer inherent viscosity
- Patent number 7,683,122
- Issue date Mar 23, 2010
- E. I. Du Pont de Nemours and Company
- Doetze Jakob Sikkema
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Processes for preparing high inherent viscosity polyareneazoles usi...
- Patent number 7,671,171
- Issue date Mar 2, 2010
- E. I. Du Pont de Nemours and Company
- Doetze Jakob Sikkema
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
PROCESS FOR HYDROLYZING POLYPHOSPHORIC ACID IN A SPUN YARN
- Publication number 20100184945
- Publication date Jul 22, 2010
- Steven R Allen
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
PROCESS FOR REMOVING CATIONS FROM POLYARENEAZOLE FIBER
- Publication number 20100184943
- Publication date Jul 22, 2010
- Doetze Jakob Sikkema
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
PROCESS FOR REMOVING PHOSPHOROUS FROM A FIBER OR YARN
- Publication number 20100184944
- Publication date Jul 22, 2010
- Steven R. Allen
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
Polyareneazole Polymer Fibers Having Pendant Hydroxyl Groups and Ca...
- Publication number 20080287647
- Publication date Nov 20, 2008
- Magellan Systems International, LLC
- Doetze Jakob Sikkema
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
Process For The Production Of Polyarenazole Yarn
- Publication number 20080179776
- Publication date Jul 31, 2008
- E.I. DuPont de Nemours and Company
- Steven R. Allen
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
Thermal processes for increasing polyareneazole inherent viscosities
- Publication number 20070100120
- Publication date May 3, 2007
- Qinghong Fu Adkins
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Processes for increasing polymer inherent viscosity
- Publication number 20070072993
- Publication date Mar 29, 2007
- E.I. du Pont de Nemours and Company
- Doetze Jakob Sikkema
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Processes for preparing high inherent viscosity polyareneazoles usi...
- Publication number 20070010654
- Publication date Jan 11, 2007
- E.I. du Pont de Nemours and Company
- Doetze Jakob Sikkema
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Process for the production of polyarenazole polymer
- Publication number 20060287475
- Publication date Dec 21, 2006
- Steven R. Allen
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
High inherent viscosity polymers and fibers therefrom
- Publication number 20060280937
- Publication date Dec 14, 2006
- E.I. du Pont de Nemours and Company
- Doetze Jakob Sikkema
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING

Doetze Jakob Sikkema

Person

Patents Grantslast 30 patents

High inherent viscosity polymers and fibers therefrom

Process for hydrolyzing polyphosphoric acid in a spun yarn

Process for removing cations from polyareneazole fiber

Process for removing phosphorous from a fiber or yarn

Process for the production of polyarenazole yarn

Process for the production of polyarenazole polymer

Processes for increasing polymer inherent viscosity

Processes for preparing high inherent viscosity polyareneazoles usi...

Patents Applicationslast 30 patents

PROCESS FOR HYDROLYZING POLYPHOSPHORIC ACID IN A SPUN YARN

PROCESS FOR REMOVING CATIONS FROM POLYARENEAZOLE FIBER

PROCESS FOR REMOVING PHOSPHOROUS FROM A FIBER OR YARN

Polyareneazole Polymer Fibers Having Pendant Hydroxyl Groups and Ca...

Process For The Production Of Polyarenazole Yarn

Thermal processes for increasing polyareneazole inherent viscosities

Processes for increasing polymer inherent viscosity

Processes for preparing high inherent viscosity polyareneazoles usi...

Process for the production of polyarenazole polymer

High inherent viscosity polymers and fibers therefrom