RH

Richard C. Helmstetter

CG Callaway Golf: 183 patents #3 of 359Top 1%
📍 Carlsbad, CA: #10 of 2,500 inventorsTop 1%
🗺 California: #645 of 386,348 inventorsTop 1%
Overall (All Time): #3,976 of 4,157,543Top 1%
186
Patents All Time

Issued Patents All Time

Showing 76–100 of 186 patents

Patent #TitleCo-InventorsDate
6434811 Weighting system for a golf club head Roger Cleveland, D. Clayton Evans, J. Andrew Galloway 2002-08-20
6428426 Golf club striking plate with variable bulge and roll Roger Cleveland, D. Clayton Evans, Garth W. Smith 2002-08-06
6425832 Golf club head that optimizes products of inertia Matthew T. Cackett, D. Clayton Evans, Frank Fan, Alan Hocknell 2002-07-30
6425831 Golf club head with a face insert having indicia thereon Kevin A. Heene, Darren F. Lawlor, Maxine J. Besaw, Clydene S. C. Nee, Herbert Reyes +2 more 2002-07-30
6406378 Sound enhanced composite golf club head James M. Murphy, Herbert Reyes, D. Clayton Evans, J. Andrew Galloway, Daniel R. Jacobson 2002-06-18
6406381 Composite golf club head and method of manufacturing James M. Murphy, Herbert Reyes, D. Clayton Evans, J. Andrew Galloway, Daniel R. Jacobson 2002-06-18
D458656 Putter head Larry G. Tang, Luke R. Williams 2002-06-11
D457930 Scoreline pattern of a golf club head Peter L. Soracco, Roger Cleveland, Augustin W. Rollinson, Herbert Reyes 2002-05-28
D457586 Putter head Larry G. Tang, Luke R. Williams 2002-05-21
D457582 Iron golf club head Roger Cleveland, Augustin W. Rollinson, Karl A. Clausen, Robert R. Lang 2002-05-21
D457585 Scoreline pattern for golf club head Garth W. Smith, Augustin W. Rollinson, Roger Cleveland 2002-05-21
6390933 High cofficient of restitution golf club head J. Andrew Galloway, Alan Hocknell, Ronald C. Boyce, Homer E. Aguinaldo 2002-05-21
D457209 Golf club head Peter L. Soracco, Roger Cleveland, Augustin W. Rollinson, Herbert Reyes 2002-05-14
6381828 Chemical etching of a striking plate for a golf club head Ronald C. Boyce, Alan Hocknell, J. Andrew Galloway 2002-05-07
6371868 Internal off-set hosel for a golf club head J. Andrew Galloway, Alan Hocknell, Homer E. Aguinaldo 2002-04-16
6368230 Golf club fitting device Andrew J. Goodjohn, Donald A. Bistline, James C. Wenck 2002-04-09
6364788 Weighting system for a golf club head Roger Cleveland, D. Clayton Evans, J. Andrew Galloway 2002-04-02
D454606 Iron golf club head Joel B. Erickson, Augustin W. Rollinson, Roger Cleveland, Luke R. Williams 2002-03-19
6354962 Golf club head with a face composed of a forged material J. Andrew Galloway, Alan Hocknell, Ronald C. Boyce, Homer E. Aguinaldo, Curtis S. Woolley 2002-03-12
D453949 Iron golf club head Joel B. Erickson, Augustin W. Rollinson, Roger Cleveland, Luke R. Williams 2002-02-26
6336869 Multiple material golf club head with a polymer insert face Ronald K. Hettinger, J. Neil Hall, Augustin W. Rollinson, Kamal Sarkar, Joshua G. Breier +2 more 2002-01-08
6328661 Multiple material golf club head with a polymer insert face Ronald K. Hettinger, J. Neil Hall, Augustin W. Rollison, Kamal Sarkar, Joshua G. Breier +2 more 2001-12-11
6325728 Four faceted sole plate for a golf club head Roger Cleveland, D. Clayton Evans, Garth W. Smith 2001-12-04
6273832 Combination golf club with an insert and golf ball Augustin W. Rollinson, John G. Guard, James F. Dooley, Victor S. Dennis, Pijush Dewanjee 2001-08-14
D444196 Golf club sole plate Roger Cleveland, D. Clayton Evans, Homer E. Aguinaldo 2001-06-26