Inventor
MAHAFFEY STEVEN J
US28 patents
⚠️ This page may combine multiple inventors who share the name “MAHAFFEY STEVEN J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CALLAWAY GOLF CO
13 patentsUS6988960B2Jan 24, 2006
Golf club head with peripheral weighting
CALLAWAY GOLF CO339 citations99
US6890267B2May 10, 2005
Golf club head with peripheral weighting
CALLAWAY GOLF CO269 citations99
US6860818B2Mar 1, 2005
Golf club head with peripheral weighting
CALLAWAY GOLF CO352 citations99
US6986715B2Jan 17, 2006
Golf club head with a face insert
CALLAWAY GOLF CO94 citations98
USD533611SDec 12, 2006
Golf club head
CALLAWAY GOLF CO50 citations96
USD499779SDec 14, 2004
Golf club head
CALLAWAY GOLF CO153 citations96
USD521091SMay 16, 2006
Golf club head
CALLAWAY GOLF CO37 citations93
USD563497SMar 4, 2008
Iron golf club head
CALLAWAY GOLF CO36 citations92
USD556278SNov 27, 2007
Iron golf club head
CALLAWAY GOLF CO46 citations92
USD509869SSep 20, 2005
Golf club head
CALLAWAY GOLF CO39 citations92
US6935967B2Aug 30, 2005
Golf club set with progressive weight pad
CALLAWAY GOLF CO31 citations90
USD531686SNov 7, 2006
Golf club head
CALLAWAY GOLF CO14 citations84
USD529969SOct 10, 2006
Golf club head
CALLAWAY GOLF CO7 citations74
LISCO INC
4 patentsUS5419559AMay 30, 1995
Metal wood with sound dampener bar
LISCO INC245 citations98
US5827131AOct 27, 1998
Laminated lightweight inserts for golf club heads
LISCO INC124 citations97
US5518242AMay 21, 1996
Crownless golf club
LISCO INC101 citations95
US5429354AJul 4, 1995
Crownless golf club
LISCO INC57 citations94
SPALDING & EVENFLO COMPANIES INC
4 patentsUSD295207SApr 12, 1988
Golf club grip
SPALDING & EVENFLO COMPANIES INC78 citations96
USD316583SApr 30, 1991
Golf club head
SPALDING & EVENFLO COMPANIES INC25 citations91
USD318511SJul 23, 1991
Golf club head
SPALDING & EVENFLO COMPANIES INC6 citations74
USD318510SJul 23, 1991
Golf club head
SPALDING & EVENFLO COMPANIES INC4 citations63