Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9676431 | Crawler track | Joseph J. Colwell | 2017-06-13 |
| D763931 | Crawler track shoe | Joseph J. Colwell | 2016-08-16 |
| D748153 | Crawler track shoe | Joseph J. Colwell | 2016-01-26 |
| 6850592 | Methods for identification and verification using digital equivalent data system | Harry F. Schramm, Jr., Bruce Kaiser, Robert D. Kuhlman, Therese Howe, Robert James Shannon, III | 2005-02-01 |