Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9827472 | Golf putter with adjustable counterbalance weight | Brian Kammerer, David N. Franklin | 2017-11-28 |
| 9265998 | Golf putter with adjustable counterbalance weight | Brian Kammerer, David N. Franklin | 2016-02-23 |
| 9266000 | Golf putter with adjustable counterbalance weight | Brian Kammerer, David N. Franklin | 2016-02-23 |
| 4536160 | Computer keyboard educational toy | — | 1985-08-20 |