Helena Twardowska

Person

Columbus, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Low-density thermosetting sheet molding compounds
- Patent number 6,974,848
- Issue date Dec 13, 2005
- Helena Twardowska
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermosetting inorganic clay nanodispersions and their use
- Patent number 6,887,931
- Issue date May 3, 2005
- Ashland Inc.
- Helena Twardowska
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Exothermic sleeve compositions containing aluminum dross
- Patent number 6,360,808
- Issue date Mar 26, 2002
- Ashland Inc.
- Helena Twardowska
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Insulating sleeve compositions containing fine silica and their use
- Patent number 6,335,387
- Issue date Jan 1, 2002
- Ashland Inc.
- Helena Twardowska
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Sleeve mixes containing stabilized microspheres and their use in ma...
- Patent number 6,286,585
- Issue date Sep 11, 2001
- Ashland Inc.
- Helena Twardowska
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Insulating sleeve compositions and their uses
- Patent number 5,983,984
- Issue date Nov 16, 1999
- Ashland Inc.
- Ronald C. Auderheide
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Heat curable binder systems and their use
- Patent number 5,837,047
- Issue date Nov 17, 1998
- Ashland Inc.
- Helena Twardowska
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Heat curable alumino-silicate binder systems and their use
- Patent number 5,743,953
- Issue date Apr 28, 1998
- Ashland Inc.
- Helena Twardowska
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Heat cured foundry binders and their use
- Patent number 5,417,751
- Issue date May 23, 1995
- Ashland Oil, Inc.
- Helena Twardowska
- B22 - CASTING POWDER METALLURGY

Patents Applicationslast 30 patents

Information Patent Application
Low-density thermosetting sheet molding compounds
- Publication number 20030199625
- Publication date Oct 23, 2003
- Helena Twardowska
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Thermosetting inorganic clay nanodispersions and their use
- Publication number 20030105208
- Publication date Jun 5, 2003
- Helena Twardowska
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Thermosetting inorganic clay nanodispersions and their use
- Publication number 20030100657
- Publication date May 29, 2003
- Helena Twardowska
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Exothermic sleeve mixes containing fine aluminum
- Publication number 20010022999
- Publication date Sep 20, 2001
- Helena Twardowska
- B22 - CASTING POWDER METALLURGY

Helena Twardowska

Person

Patents Grantslast 30 patents

Low-density thermosetting sheet molding compounds

Thermosetting inorganic clay nanodispersions and their use

Exothermic sleeve compositions containing aluminum dross

Insulating sleeve compositions containing fine silica and their use

Sleeve mixes containing stabilized microspheres and their use in ma...

Insulating sleeve compositions and their uses

Heat curable binder systems and their use

Heat curable alumino-silicate binder systems and their use

Heat cured foundry binders and their use

Patents Applicationslast 30 patents

Low-density thermosetting sheet molding compounds

Thermosetting inorganic clay nanodispersions and their use

Thermosetting inorganic clay nanodispersions and their use

Exothermic sleeve mixes containing fine aluminum