Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6352471 | Abrasive brush with filaments having plastic abrasive particles therein | Donna W. Bange, David E. Johnson, Richard M. Pihl | 2002-03-05 |
| 6277160 | Abrasive article and method of making such article | Roy Stubbs, Scott R. Culler, Donna W. Bange, John D. Haas | 2001-08-21 |
| 6080215 | Abrasive article and method of making such article | Roy Stubbs, Scott R. Culler, Donna W. Bange, John D. Haas | 2000-06-27 |
| 5903951 | Molded brush segment | Richard Ionta, Donna W. Bange, David E. Johnson, Richard M. Pihl, David C. Roeker | 1999-05-18 |