Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5976204 | Abrasive articles and method for preparing them | Janet L. Hammarstrom, Michael J. Lemberger, Arno Gardziella | 1999-11-02 |
| 5611827 | Method for preparing mixtures for abrasive articles | Janet L. Hammarstrom, Michael J. Lemberger, Arno Gardziella | 1997-03-18 |