SM

Steven J. Mahaffey

CG Callaway Golf: 13 patents #88 of 359Top 25%
SC Spalding & Evenflo Companies: 5 patents #6 of 38Top 20%
LI Lisco: 4 patents #33 of 103Top 35%
QU Questor: 2 patents #11 of 22Top 50%
SW Spalding Sports Worldwide: 2 patents #39 of 84Top 50%
TG The Top Flite Golf: 1 patents #8 of 19Top 45%
📍 Monson, MA: #2 of 51 inventorsTop 4%
🗺 Massachusetts: #3,464 of 88,656 inventorsTop 4%
Overall (All Time): #139,961 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDate
D563497 Iron golf club head Catherine Brookshire-Herron 2008-03-04
D556278 Iron golf club head Catherine Brookshire-Herron 2007-11-27
D533611 Golf club head Philip G. Foster 2006-12-12
D531686 Golf club head 2006-11-07
D529969 Golf club head 2006-10-10
D521091 Golf club head Philip G. Foster 2006-05-16
6988960 Golf club head with peripheral weighting Thomas M. Greene, David Lowe 2006-01-24
6986715 Golf club head with a face insert 2006-01-17
D509869 Golf club head 2005-09-20
6935967 Golf club set with progressive weight pad Ryan L. Roach, Ronnie F. McGraw 2005-08-30
6890267 Golf club head with peripheral weighting Thomas M. Greene, David Lowe 2005-05-10
6860818 Golf club head with peripheral weighting Thomas M. Greene, David Lowe 2005-03-01
D499779 Golf club head Ryan L. Roach 2004-12-14
D492377 Golf club head Ryan L. Roach 2004-06-29
D443665 Golf club head having rear cavity plate 2001-06-12
6074309 Laminated lightweight inserts for golf club heads 2000-06-13
5827131 Laminated lightweight inserts for golf club heads Daniel A. Melanson 1998-10-27
5549297 Golf club iron with vibration dampening ramp bar 1996-08-27
5518242 Crownless golf club Daniel A. Melanson 1996-05-21
5429354 Crownless golf club James M. Long, John Krzynowek 1995-07-04
5419559 Metal wood with sound dampener bar Daniel A. Melanson 1995-05-30
D318510 Golf club head 1991-07-23
D318511 Golf club head 1991-07-23
D316583 Golf club head Gary Roulston 1991-04-30
4762322 Golf club Robert P. Molitor, Bernard C. McDermott, Dominick J. Swistro 1988-08-09