Richard B. Castle

Person

St. Paul, MN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Fused glassy particulates obtained by flame fusion
- Patent number 6,254,981
- Issue date Jul 3, 2001
- Minnesota Mining and Manufacturing Company
- Richard B. Castle
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
At least partly fused particulates and methods of making them by fl...
- Patent number 6,045,913
- Issue date Apr 4, 2000
- Minnesota Mining and Manufacturing Company
- Richard B. Castle
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Compositions comprising fused particulates and methods of making them
- Patent number 5,883,029
- Issue date Mar 16, 1999
- Minnesota Mining and Manufacturing Company
- Richard B. Castle
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Compositions comprising fused particulates and methods of making same
- Patent number 5,641,717
- Issue date Jun 24, 1997
- Richard B. Castle
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Compositions comprising fused particulates and methods of making them
- Patent number 5,559,170
- Issue date Sep 24, 1996
- Minnesota Mining and Manufacturing Company
- Richard B. Castle
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Proppant for well fractures and method of making same
- Patent number 4,493,875
- Issue date Jan 15, 1985
- Minnesota Mining and Manufacturing Company
- Warren R. Beck
- E21 - EARTH DRILLING MINING
Information Patent Grant
Breakaway timber support poles
- Patent number 4,432,172
- Issue date Feb 21, 1984
- Minnesota Mining and Manufacturing Company
- Charles R. Kuykendall
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Richard B. Castle

Person

Patents Grantslast 30 patents

Fused glassy particulates obtained by flame fusion

At least partly fused particulates and methods of making them by fl...

Compositions comprising fused particulates and methods of making them

Compositions comprising fused particulates and methods of making same

Compositions comprising fused particulates and methods of making them

Proppant for well fractures and method of making same

Breakaway timber support poles