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Achim Amma
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Richmond, VA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Polyareneazole/thermoplastic pulp and methods of making same
Patent number
8,444,816
Issue date
May 21, 2013
E I du Pont de Nemours and Company
Achim Amma
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Pulp comprising polypyridobisimidazole and other polymers and metho...
Patent number
8,444,815
Issue date
May 21, 2013
E I du Pont de Nemours and Company
Achim Amma
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Polyareneazole/thermoset pulp and methods of making same
Patent number
8,444,817
Issue date
May 21, 2013
E I du Pont de Nemours and Company
Achim Amma
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of making a fiber optical cable assembly
Patent number
8,406,589
Issue date
Mar 26, 2013
E I du Pont de Nemours and Company
Achim Amma
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
Polyareneazole/wood pulp and methods of making same
Patent number
8,404,082
Issue date
Mar 26, 2013
E I du Pont de Nemours and Company
Achim Amma
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Friction papers comprising PIPD fiber
Patent number
8,298,375
Issue date
Oct 30, 2012
E I du Pont de Nemours and Company
Edmund A. Merriman
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Para-aramid pulp including meta-aramid fibrids and processes of mak...
Patent number
8,211,272
Issue date
Jul 3, 2012
E. I. Du Pont de Nemours and Company
Mikhail R. Levit
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Paper comprising PIPD pulp and process for making same
Patent number
8,137,506
Issue date
Mar 20, 2012
E. I. Du Pont de Nemours and Company
Edmund A. Merriman
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Flexible hose for conveying fluids or gases
Patent number
7,950,420
Issue date
May 31, 2011
E. I. Du Pont de Nemours and Company
Achim Amma
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Polyareneazole/thermoplastic pulp and methods of making same
Patent number
7,744,724
Issue date
Jun 29, 2010
E. I. Du Pont de Nemours and Company
Achim Amma
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Para-aramid pulp including meta-aramid fibrids and processes of mak...
Patent number
7,740,741
Issue date
Jun 22, 2010
E. I. Du Pont de Nemours and Company
Mikhail R. Levit
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Polyareneazole/thermoset pulp and methods of making same
Patent number
7,727,357
Issue date
Jun 1, 2010
E. I. Du Pont de Nemours and Company
Achim Amma
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyareneazole/wood pulp and methods of making same
Patent number
7,727,356
Issue date
Jun 1, 2010
E. I. Du Pont de Nemours and Company
Achim Amma
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Pulp comprising polypyridobisimidazole and other polymers and metho...
Patent number
7,727,358
Issue date
Jun 1, 2010
E. I. Du Pont de Nemours and Company
Achim Amma
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Fibrillated polypyridobisimidazole floc
Patent number
7,686,920
Issue date
Mar 30, 2010
E. I. Du Pont de Nemours and Company
Mikhail R. Levit
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Slurries containing microfiber and micropowder, and methods for usi...
Patent number
7,521,493
Issue date
Apr 21, 2009
E. I. Du Pont de Nemours and Company
Arnold Frances
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
METHOD OF MAKING A FIBER OPTICAL CABLE ASSEMBLY
Publication number
20110182553
Publication date
Jul 28, 2011
E.I. du Pont de Nemours and Company
Achim Amma
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Application
PARA-ARAMID PULP INCLUDING META-ARAMID FIBRIDS AND PROCESSES OF MAK...
Publication number
20100212851
Publication date
Aug 26, 2010
E.I. du Pont de Nemours and Company
Mikhail R. Levit
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
POLYARENEAZOLE/WOOD PULP AND METHODS OF MAKING SAME
Publication number
20100200183
Publication date
Aug 12, 2010
E.I. du Pont de Nemours and Company
ACHIM AMMA
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PULP COMPRISING POLYPYRIDOBISIMIDAZOLE AND OTHER POLYMERS AND METHO...
Publication number
20100193143
Publication date
Aug 5, 2010
E.I. du Pont de Nemours and Company
ACHIM AMMA
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
POLYARENEAZOLE/THERMOSET PULP AND METHODS OF MAKING SAME
Publication number
20100193145
Publication date
Aug 5, 2010
E.I. du Pont de Nemours and Company
ACHIM AMMA
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
POLYARENEAZOLE/THERMOPLASTIC PULP AND METHODS OF MAKING SAME
Publication number
20100193144
Publication date
Aug 5, 2010
E.I. du Pont de Nemours and Company
ACHIM AMMA
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Flexible hose for conveying fluids or gases
Publication number
20090320952
Publication date
Dec 31, 2009
Achim Amma
B32 - LAYERED PRODUCTS
Information
Patent Application
Paper Comprising Pipd Pupl and Process for Making Same
Publication number
20090236064
Publication date
Sep 24, 2009
Edmund A. Merriman
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Friction Papers Comprising Pipd Fiber
Publication number
20090151884
Publication date
Jun 18, 2009
Edmund A. Merriman
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Fibrillated Polypridobismidazole Floc
Publication number
20090078383
Publication date
Mar 26, 2009
Mikhail R. Levit
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Polyareneazole/thermoplastic pulp and methods of making same
Publication number
20070144695
Publication date
Jun 28, 2007
Achim Amma
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Pulp comprising polypyridobisimidazole and other polymers and metho...
Publication number
20070144696
Publication date
Jun 28, 2007
Achim Amma
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Polyareneazole/wood pulp and methods of making same
Publication number
20070137817
Publication date
Jun 21, 2007
Achim Amma
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Polyareneazole/thermoset pulp and methods of making same
Publication number
20070137819
Publication date
Jun 21, 2007
Achim Amma
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Para-aramid pulp including meta-aramid fibrids and processes of mak...
Publication number
20070137818
Publication date
Jun 21, 2007
Mikhail R. Levit
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Slurries containing microfiber and micropowder, and methods for usi...
Publication number
20060155011
Publication date
Jul 13, 2006
Arnold Frances
H01 - BASIC ELECTRIC ELEMENTS