Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6308790 | Drag bits with predictable inclination tendencies and behavior | Graham Mensa-Wilmot | 2001-10-30 |
| 4727929 | Investment shell molding apparatus and method | Jerald J. Seymer | 1988-03-01 |
| 4220190 | Method of making tooling | Robert A. Horton, Timothy Bauer | 1980-09-02 |
| RE30225 | Method and apparatus for feeding granulated material | Donald A. Daugherty | 1980-03-11 |