Issued Patents 2018
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10127941 | Optical disk drive guide | David J. Altknecht, John S. Best, A. David Erpelding, Steven R. Hetzler | 2018-11-13 |
| 10043547 | Spring clip leader and housing for magnetic tape | David Berman, A. David Erpelding, Wayne Isami Imaino, Ronald R. Labby | 2018-08-07 |
| 9984722 | Disc storage cassettes | David J. Altknecht, Donald S. Bethune, A. David Erpelding, Steven R. Hetzler, Drew B. Lawson +1 more | 2018-05-29 |