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Patent applications and USPTO patent grants for Rowenhorst; Donley D..The latest application filed is for "shaped abrasive particles and method of making same".
Patent | Date |
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Shaped abrasive particles and method of making same Grant 5,984,988 - Berg , et al. November 16, 1 | 1999-11-16 |
Abrasive article containing shaped abrasive particles Grant RE35,570 - Rowenhorst , et al. July 29, 1 | 1997-07-29 |
Abrasive article containing shaped abrasive particles Grant 5,366,523 - Rowenhorst , et al. November 22, 1 | 1994-11-22 |
Method and apparatus for extruding bingham plastic-type materials Grant 5,304,331 - Leonard , et al. April 19, 1 | 1994-04-19 |
Shaped abrasive particles and method of making same Grant 5,201,916 - Berg , et al. April 13, 1 | 1993-04-13 |
Granular silicon carbide abrasive grain coated with refractory material, method of making the same and articles made therewith Grant 4,505,720 - Gabor , et al. March 19, 1 | 1985-03-19 |
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