SE

Steven M. Ehlers

CG Callaway Golf: 4 patents #25 of 88Top 30%
📍 Poway, CA: #2 of 110 inventorsTop 2%
🗺 California: #1,459 of 28,521 inventorsTop 6%
Overall (2003): #12,568 of 273,478Top 5%
4
Patents 2003

Issued Patents 2003

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6612938 Composite golf club head James M. Murphy, Herbert Reyes, J. Andrew Galloway, D. Clayton Evans, Richard C. Helmstetter +3 more 2003-09-02
6607623 Method of manufacturing a composite golf club head James M. Murphy, Herbert Reyes, J. Andrew Galloway, D. Clayton Evans, Richard C. Helmstetter +3 more 2003-08-19
6585605 Measurement of the coefficient of restitution of a golf club Matthew J. Erickson, Pin Fan, John B. Kosmatka 2003-07-01
6527648 Measurement of the coefficient of restitution of a golf club Matthew J. Erickson, Frank Fan, John B. Kosmatka 2003-03-04