Richard L. Helferich

Person

Clayton, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Cement and methods of preparing cement
- Patent number 8,409,344
- Issue date Apr 2, 2013
- MetaMateria Technologies LLC
- Richard J. Schorr
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Production and article of iron/surfactant-modified zeolite pellets...
- Patent number 6,261,986
- Issue date Jul 17, 2001
- New Mexico Tech Research Foundation
- Robert S. Bowman
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Porous ceramic article for use as a filter for removing particulate...
- Patent number 4,976,760
- Issue date Dec 11, 1990
- Cercona, Inc.
- Richard L. Helferich
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Lightweight hydrogel-bound aggregate shapes and process for produci...
- Patent number 4,963,515
- Issue date Oct 16, 1990
- The Duriron Company, Inc.
- Richard L. Helferich
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method for manufacture of porous refractory articles
- Patent number 4,878,947
- Issue date Nov 7, 1989
- The Duriron Company, Inc.
- Richard L. Helferich
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process for producing porous ceramic filter for filtering of partic...
- Patent number 4,871,495
- Issue date Oct 3, 1989
- The Duriron Company, Inc.
- Richard L. Helferich
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Methods for the manufacture of porous ceramic shapes containing mem...
- Patent number 4,846,906
- Issue date Jul 11, 1989
- The Duriron Company, Inc.
- Richard L. Helferich
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Porous ceramic shapes, compositions for the preparation thereof, an...
- Patent number 4,814,300
- Issue date Mar 21, 1989
- The Duriron Company, Inc.
- Richard L. Helferich
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Kiln furniture for the firing of ceramic articles
- Patent number 4,812,424
- Issue date Mar 14, 1989
- The Duriron Company, Inc.
- Richard L. Helferich
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Aluminosilicate hydrogel bonded aggregate articles
- Patent number 4,432,798
- Issue date Feb 21, 1984
- The Duriron Company, Inc.
- Richard L. Helferich
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Aluminosilicate hydrogel bonded granular compositions and method of...
- Patent number 4,357,165
- Issue date Nov 2, 1982
- The Duriron Company
- Richard L. Helferich
- B22 - CASTING POWDER METALLURGY

Patents Applicationslast 30 patents

Information Patent Application
Porous Composite Media for Removing Phosphorus from Water
- Publication number 20130098840
- Publication date Apr 25, 2013
- METAMATERIA TECHNOLOGIES, LLC
- Richard Helferich
- B82 - NANO-TECHNOLOGY
Information Patent Application
CEMENT AND METHODS OF PREPARING CEMENT
- Publication number 20100175588
- Publication date Jul 15, 2010
- TATA CHEMICALS LIMITED
- Richard J. Schorr
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Richard L. Helferich

Person

Patents Grantslast 30 patents

Cement and methods of preparing cement

Production and article of iron/surfactant-modified zeolite pellets...

Porous ceramic article for use as a filter for removing particulate...

Lightweight hydrogel-bound aggregate shapes and process for produci...

Method for manufacture of porous refractory articles

Process for producing porous ceramic filter for filtering of partic...

Methods for the manufacture of porous ceramic shapes containing mem...

Porous ceramic shapes, compositions for the preparation thereof, an...

Kiln furniture for the firing of ceramic articles

Aluminosilicate hydrogel bonded aggregate articles

Aluminosilicate hydrogel bonded granular compositions and method of...

Patents Applicationslast 30 patents

Porous Composite Media for Removing Phosphorus from Water

CEMENT AND METHODS OF PREPARING CEMENT