Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6478690 | Multiple material golf club head with a polymer insert face | Richard C. Helmstetter, Ronald K. Hettinger, Augustin W. Rollison, Kamal Sarkar, Joshua G. Breier +2 more | 2002-11-12 |
| 6336869 | Multiple material golf club head with a polymer insert face | Ronald K. Hettinger, Richard C. Helmstetter, Augustin W. Rollinson, Kamal Sarkar, Joshua G. Breier +2 more | 2002-01-08 |