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 101–125 of 186 patents

Patent #TitleCo-InventorsDate
6248025 Composite golf club head and method of manufacturing James M. Murphy, Herbert Reyes, D. Clayton Evans, J. Andrew Galloway, Daniel R. Jacobson 2001-06-19
6238302 Golf club head with an insert having integral tabs Augustin W. Rollinson, John G. Guard, James F. Dooley, Victor S. Dennis, Pijush Dewanjee 2001-05-29
D441819 Golf club head Roger Cleveland, D. Clayton Evans, Homer E. Aguinaldo 2001-05-08
D441415 Golf club sole plate Roger Cleveland, D. Clayton Evans, Garth W. Smith 2001-05-01
D440616 Golf club head Roger Cleveland, D. Clayton Evans, Garth W. Smith 2001-04-17
D437904 Scoreline pattern for a golf club head J. Andrew Galloway, Alan Hocknell 2001-02-20
D436149 Iron golf club head Joel B. Erickson 2001-01-09
6165077 Sole configuration for golf club head D. Clayton Evans 2000-12-26
D435277 Iron golf club head Joel B. Erickson 2000-12-19
D434095 Golf club head J. Andrew Galloway, Alan Hocknell 2000-11-21
D429512 Back surface for an iron golf club head Roger Cleveland, Karl A. Clausen, Thomas R. Hilton, Larry G. Tang 2000-08-15
D429300 Iron golf club head Roger Cleveland, Karl A. Clausen, Thomas R. Hilton, Larry G. Tang 2000-08-08
D425159 Scoreline pattern for golf club head D. Clayton Evans, Roger Cleveland 2000-05-16
6045455 Inertially tailored golf club heads John B. Kosmatka, Thomas R. Hilton 2000-04-04
6027416 Hollow, metallic golf club head with relieved sole and dendritic structure Glenn H. Schmidt 2000-02-22
D420081 Sole design for golf club head D. Clayton Evans, Roger Cleveland, Bret K. C. Larsen 2000-02-01
6007433 Sole configuration for golf club head D. Clayton Evans 1999-12-28
D415808 Scoreline pattern for golf club head D. Clayton Evans, Roger Cleveland 1999-10-26
D402343 Golf putter head Steven D. Gray, Roger Cleveland 1998-12-08
5785605 Hollow, metallic golf club head with configured medial ridge 1998-07-28
5776010 Weight structure on a golf club head Thomas R. Hilton, Donald A. Bistline, Victor S. Dennis 1998-07-07
5755624 Selectively balanced golf club heads and method of head selection 1998-05-26
5749795 Iron golf club head with dual intersecting recesses Glenn H. Schmidt 1998-05-12
D393036 Iron type golf club head Donald A. Bistline, Thomas R. Hilton, Victor S. Dennis 1998-03-31
D393034 Iron-type golf club head Thomas R. Hilton, Donald A. Bistline, Victor S. Dennis, Bruce A. Parker 1998-03-31