David L. Coursen

Person

Mercersburg, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Borehole stemming with a column of liquefiable and/or vaporizable c...
- Patent number 4,586,438
- Issue date May 6, 1986
- E. I. Du Pont de Nemours and Company
- David L. Coursen
- F42 - AMMUNITION BLASTING
Information Patent Grant
Apparatus and method for transferring a Bingham solid through a lon...
- Patent number 4,510,958
- Issue date Apr 16, 1985
- E. I. Du Pont de Nemours and Company
- David L. Coursen
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information Patent Grant
Apparatus and method for transferring a Bingham solid through a lon...
- Patent number 4,462,429
- Issue date Jul 31, 1984
- E. I. Du Pont de Nemours and Company
- David L. Coursen
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information Patent Grant
Ice-filled structure and tunnelling method for the egress and launc...
- Patent number 4,431,349
- Issue date Feb 14, 1984
- E. I. Du Pont de Nemours & Co.
- David L. Coursen
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
In situ leaching of ore bodies
- Patent number 4,239,286
- Issue date Dec 16, 1980
- E. I. Du Pont de Nemours and Company
- David L. Coursen
- F42 - AMMUNITION BLASTING
Information Patent Grant
Method of producing self-propping fluid-conductive fractures in rock
- Patent number 4,220,205
- Issue date Sep 2, 1980
- E. I. Du Pont de Nemours and Company
- David L. Coursen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Inorganic cement grouting system for use in anchoring a bolt in a h...
- Patent number 4,126,005
- Issue date Nov 21, 1978
- E. I. Du Pont de Nemours and Company
- David L. Coursen
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
In situ leaching of explosively fractured ore bodies
- Patent number 3,999,803
- Issue date Dec 28, 1976
- David Linn Coursen
- F42 - AMMUNITION BLASTING
Information Patent Grant
Loading of boreholes with explosives
- Patent number 3,986,430
- Issue date Oct 19, 1976
- E. I. Du Pont de Nemours and Company
- David Linn Coursen
- F42 - AMMUNITION BLASTING
Information Patent Grant
Directed-thrust blasting process
- Patent number 3,973,497
- Issue date Aug 10, 1976
- E. I. Du Pont de Nemours and Company
- David Linn Coursen
- F42 - AMMUNITION BLASTING

David L. Coursen

Person

Patents Grantslast 30 patents

Borehole stemming with a column of liquefiable and/or vaporizable c...

Apparatus and method for transferring a Bingham solid through a lon...

Apparatus and method for transferring a Bingham solid through a lon...

Ice-filled structure and tunnelling method for the egress and launc...

In situ leaching of ore bodies

Method of producing self-propping fluid-conductive fractures in rock

Inorganic cement grouting system for use in anchoring a bolt in a h...

In situ leaching of explosively fractured ore bodies

Loading of boreholes with explosives

Directed-thrust blasting process