Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6295181 | Tape bearing surface with reduce tape contact and method of making same | Durkee B. Richards, Leif O. Erickson | 2001-09-25 |
| 5870924 | Tape bearing surface with reduced tape contact and method of making same | Durkee B. Richards, Leif O. Erickson | 1999-02-16 |