David D. Hawn

Person

Midland, MI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Composite polyamide membrane having azo content and high acid content
- Patent number 9,981,227
- Issue date May 29, 2018
- Dow Global Technologies LLC
- Mou Paul
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Composite polyamide membrane
- Patent number 9,662,615
- Issue date May 30, 2017
- Dow Global Technologies LLC
- Abhishek Roy
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Composite polyamide membrane with improved structure
- Patent number 9,630,149
- Issue date Apr 25, 2017
- Dow Global Technologies LLC
- Abhishek Roy
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Composite polyamide membrane having high acid content and low azo c...
- Patent number 9,616,392
- Issue date Apr 11, 2017
- Dow Global Technologies LLC
- Ian A. Tomlinson
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Composite polyamide membrane with increased carboxylic acid functio...
- Patent number 9,610,542
- Issue date Apr 4, 2017
- Dow Global Technologies LLC
- Abhishek Roy
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Composite polyamide membrane having preferred azo content
- Patent number 9,555,378
- Issue date Jan 31, 2017
- Dow Global Technologies LLC
- Abhishek Roy
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
HIGHLY SWELLABLE COMPOSITE POLYAMIDE MEMBRANE
- Publication number 20160317977
- Publication date Nov 3, 2016
- DOW GLOBAL TECHNOLOGIES LLC
- Abhishek Roy
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
COMPOSITE POLYAMIDE MEMBRANE HAVING HIGH ACID CONTENT AND LOW AZO C...
- Publication number 20160317980
- Publication date Nov 3, 2016
- DOW GLOBAL TECHNOLOGIES LLC
- Ian A. Tomlinson
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
COMPOSITE POLYAMIDE MEMBRANE HAVING AZO CONTENT AND HIGH ACID CONTENT
- Publication number 20160310909
- Publication date Oct 27, 2016
- DOW GLOBAL TECHNOLOGIES LLC
- Mou Paul
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
COMPOSITE POLYAMIDE MEMBRANE HAVING PREFERRED AZO CONTENT
- Publication number 20160303520
- Publication date Oct 20, 2016
- DOW GLOBAL TECHNOLOGIES LLC
- Abhishek Roy
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
COMPOSITE POLYAMIDE MEMBRANE WITH IMPROVED STRUCTURE
- Publication number 20150165387
- Publication date Jun 18, 2015
- Abhishek Roy
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
COMPOSITE POLYAMIDE MEMBRANE WITH CARBOXYLIC ACID FUNCTIONALITY
- Publication number 20150157990
- Publication date Jun 11, 2015
- Abhishek Roy
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
COMPOSITE POLYAMIDE MEMBRANE
- Publication number 20150151255
- Publication date Jun 4, 2015
- DOW GLOBAL TECHNOLOGIES LLC
- Abhishek Roy
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
COMPOSITE POLYAMIDE MEMBRANE WITH INCREASED CARBOXYLIC ACID FUNCTIO...
- Publication number 20150129485
- Publication date May 14, 2015
- DOW GLOBAL TECHNOLOGIES LLC
- Abhishek Roy
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

David D. Hawn

Person

Patents Grantslast 30 patents

Composite polyamide membrane having azo content and high acid content

Composite polyamide membrane

Composite polyamide membrane with improved structure

Composite polyamide membrane having high acid content and low azo c...

Composite polyamide membrane with increased carboxylic acid functio...

Composite polyamide membrane having preferred azo content

Patents Applicationslast 30 patents

HIGHLY SWELLABLE COMPOSITE POLYAMIDE MEMBRANE

COMPOSITE POLYAMIDE MEMBRANE HAVING HIGH ACID CONTENT AND LOW AZO C...

COMPOSITE POLYAMIDE MEMBRANE HAVING AZO CONTENT AND HIGH ACID CONTENT

COMPOSITE POLYAMIDE MEMBRANE HAVING PREFERRED AZO CONTENT

COMPOSITE POLYAMIDE MEMBRANE WITH IMPROVED STRUCTURE

COMPOSITE POLYAMIDE MEMBRANE WITH CARBOXYLIC ACID FUNCTIONALITY

COMPOSITE POLYAMIDE MEMBRANE

COMPOSITE POLYAMIDE MEMBRANE WITH INCREASED CARBOXYLIC ACID FUNCTIO...