Donald L. Douty

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Franklin Township, Westmoreland County, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Grouting composition cartridge
- Patent number 4,516,884
- Issue date May 14, 1985
- United States Steel Corporation
- Donald L. Douty
- E21 - EARTH DRILLING MINING
Information Patent Grant
Grouting composition and method of using same
- Patent number 4,487,529
- Issue date Dec 11, 1984
- United States Steel Corporation
- Donald L. Douty
- E21 - EARTH DRILLING MINING
Information Patent Grant
Seal for railroad car hopper doors
- Patent number 4,214,759
- Issue date Jul 29, 1980
- United States Steel Corporation
- Donald L. Douty
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Method and apparatus for promoting release of fines
- Patent number 4,149,624
- Issue date Apr 17, 1979
- United States Steel Corporation
- Donald L. Douty
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL