Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5617745 | Support sock | Daniel H. Good, David S. Good, David E. Shaffer | 1997-04-08 |
| 5092347 | Personalized sock kit for relieving foot and ankle pain | David E. Shaffer | 1992-03-03 |
| 4856505 | Apparatus for relieving pain and discomfort of a bunion | David E. Shaffer | 1989-08-15 |
| 4841648 | Personalized insole kit | David E. Shaffer | 1989-06-27 |