Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8142891 | Dish-shaped abrasive particles with a recessed surface | Scott R. Culler, Negus B. Adefris, John T. Boden, John D. Haas | 2012-03-27 |
| 8142532 | Shaped abrasive particles with an opening | Scott R. Culler, Negus B. Adefris, John T. Boden, John D. Haas | 2012-03-27 |
| 8123828 | Method of making abrasive shards, shaped abrasive particles with an opening, or dish-shaped abrasive particles | Scott R. Culler, Negus B. Adefris, John T. Boden, John D. Haas | 2012-02-28 |
| 8034137 | Shaped, fractured abrasive particle, abrasive article using same and method of making | Scott R. Culler, Negus B. Adefris, John T. Boden, John D. Haas | 2011-10-11 |
| 7887608 | Agglomerate abrasive grains and methods of making the same | Mark G. Schwabel | 2011-02-15 |
| 7399330 | Agglomerate abrasive grains and methods of making the same | Mark G. Schwabel | 2008-07-15 |
| 6264710 | Layered alumina-based abrasive grit abrasive products, and methods | — | 2001-07-24 |
| 6228134 | Extruded alumina-based abrasive grit, abrasive products, and methods | — | 2001-05-08 |
| 6080216 | Layered alumina-based abrasive grit, abrasive products, and methods | — | 2000-06-27 |
| 5645619 | Method of making alpha alumina-based abrasive grain containing silica and iron oxide | Larry D. Monroe, Thomas E. Wood, David M. Wilson | 1997-07-08 |
| 5531976 | Preparation of alumina having increased porosity | Lewis B. Decker, Jr., David A. Barclay | 1996-07-02 |
| 5489318 | Abrasive grain comprising calcium oxide and/or strontium oxide | William P. Wood | 1996-02-06 |