van de Merwe; Ronald H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for van de Merwe; Ronald H..The latest application filed is for "alumina sol-gel fiber".
- van de Merwe; Ronald H. - Niagara Falls CA
- van de Merwe; Ronald H. - Northborough MA
| Patent | Date |
|---|---|
| Alumina sol-gel fiber Grant 5,514,631 - Cottringer , et al. May 7, 1 | 1996-05-07 |
| Abrasive material and method Grant 5,395,407 - Cottringer , et al. March 7, 1 | 1995-03-07 |
| Abrasive material and method Grant 5,383,945 - Cottringer , et al. January 24, 1 | 1995-01-24 |
| Sintered sol gel alumina abrasive filaments Grant 5,244,477 - Rue , et al. * September 14, 1 | 1993-09-14 |
| Sintered sol gel alumina abrasive filaments Grant 5,194,072 - Rue , et al. * March 16, 1 | 1993-03-16 |
| Sintered sol gel alumina abrasive filaments Grant 5,009,676 - Rue , et al. April 23, 1 | 1991-04-23 |
| Abrasive material and method for preparing the same Grant 4,623,364 - Cottringer , et al. November 18, 1 | 1986-11-18 |
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