Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679067 | Molded abrasive brush | David E. Johnson, Lawrence J. Mann, Scott M. Mevissen, David C. Roeker | 1997-10-21 |
| D381139 | Molded abrasive brush | David E. Johnson, David C. Roeker | 1997-07-15 |
| 5616411 | Composite abrasive filaments, methods of making same, articles incorporating same, and methods of using said articles | Loren L. Barber, Jr., Dennis G. Welygan | 1997-04-01 |