Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6554722 | Golf club head | Joel B. Erickson, Roger Cleveland, Richard C. Helmstetter, Augustin W. Rollinson, Luke R. Williams +3 more | 2003-04-29 |
| 6379263 | Golf club and weighting system | Joel B. Erickson, John G. Guard, James F. Dooley, Thomas J. DiMarco | 2002-04-30 |
| 6348012 | Golf club and weighting system | Joel B. Erickson, John G. Guard, James F. Dooley, Thomas J. DiMarco | 2002-02-19 |
| 6210290 | Golf club and weighting system | Joel B. Erickson, John G. Guard, James F. Dooley, Thomas J. DiMarco | 2001-04-03 |