Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D879164 | Coated abrasive disc | Thomas P. Hanschen, Steven J. Keipert, Joseph B. Eckel, Aaron K. Nienaber, Erin D. Spring +2 more | 2020-03-24 |
| D879165 | Coated abrasive belt | Joseph B. Eckel, Aaron K. Nienaber, Erin D. Spring, Brant A. Moegenburg, Thomas J. Nelson +2 more | 2020-03-24 |
| D879166 | Coated abrasive belt | Joseph B. Eckel, Aaron K. Nienaber, Erin D. Spring, Brant A. Moegenburg, Thomas J. Nelson +2 more | 2020-03-24 |