Roy L. Smith

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Milford, DE, US

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Patents Grantslast 30 patents

Information Patent Grant
Polishing element
- Patent number 5,369,916
- Issue date Dec 6, 1994
- Dentsply Research & Development Corp.
- Steven R. Jefferies
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Finishing/polishing system
- Patent number 5,078,754
- Issue date Jan 7, 1992
- Dentsply Research & Development Corp.
- Steven R. Jefferies
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Visible light curable dental compositions
- Patent number 4,553,940
- Issue date Nov 19, 1985
- Dentsply Research & Development Corp.
- Francis F. Koblitz
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Methods for posterior dental restoration employing light curable pa...
- Patent number 4,514,174
- Issue date Apr 30, 1985
- Dentsply Research & Development Corp.
- Emery W. Dougherty
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Process for restoring teeth with visible light curable compositions
- Patent number 4,491,453
- Issue date Jan 1, 1985
- Dentsply Research & Development Corp.
- Francis F. Koblitz
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE