Issued Patents 2019
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10350670 | Method for making a dual threaded bolt roll forming die | Mark Doll, Zebula Doll, Jim Flanagan | 2019-07-16 |
| 10315244 | Method of forming a die for roll forming a dual threaded bolt | Mark Doll, Zebula Doll, Jim Flanagan | 2019-06-11 |
| 10232427 | Method for making a die for roll forming a dual threaded bolt | Mark Doll, Zebula Doll, Jim Flanagan | 2019-03-19 |