Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7877830 | Method and apparatus for attaching a heel to a shoe | Joseph R. Mackenroth, III | 2011-02-01 |
| 5058290 | Shoe construction with self seating removable heel | Joseph R. Mackenroth, III | 1991-10-22 |