Paul V. Kelsey Jr.

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Blacksburg, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of preparing rare earth pyrohafnate phosphors
- Patent number 4,014,812
- Issue date Mar 29, 1977
- GTE Sylvania Incorporated
- Paul V. Kelsey
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Yb activated hafnium oxide phosphor and methods of making
- Patent number 4,006,097
- Issue date Feb 1, 1977
- GTE Sylvania Incorporated
- Paul V. Kelsey
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...