Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6478690 | Multiple material golf club head with a polymer insert face | Richard C. Helmstetter, Ronald K. Hettinger, J. Neil Hall, Augustin W. Rollison, 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, J. Neil Hall, Augustin W. Rollinson, Joshua G. Breier +2 more | 2002-01-08 |
| 6328661 | Multiple material golf club head with a polymer insert face | Richard C. Helmstetter, Ronald K. Hettinger, J. Neil Hall, Augustin W. Rollison, Joshua G. Breier +2 more | 2001-12-11 |
| 6095931 | Bi-material golf club head having an isolation layer | Ronald K. Hettinger, J. Neil Hall, Augustin W. Rollinson | 2000-08-01 |
| 5848089 | Excimer laser with magnetic bearings supporting fan | Richard C. Ujazdowski, Palash P. Das, Donald G. Larson | 1998-12-08 |