Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10731420 | Indexing drill bit | Scott Dahlgren, David R. Hall, Joshua J. Hanson, Jonathan Marshall, Yuelin Shen +3 more | 2020-08-04 |
JP
John J. Pierce
Overall (2020): #408,510 of 565,922Top 75%
1
Patents 2020