Issued Patents 2017
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9827472 | Golf putter with adjustable counterbalance weight | David N. Franklin, John Hatfield | 2017-11-28 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9827472 | Golf putter with adjustable counterbalance weight | David N. Franklin, John Hatfield | 2017-11-28 |