LexDanaLexDanabeta
Inventor

Steven J. Mahaffey

Inventor
Hampden, MA, US

Overview

28→
Patents
1983–2008
Patent span
Human necessities
Primary field (CPC A)

Patents· 28 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

A63Bprimary
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing52%
LOC2136%
LOCD28%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%
PatentTitleYear
D0563497'Iron golf club head'2008D0556278'Iron golf club head'2007D0533611'Golf club head'2006D0531686'Golf club head'2006D0529969'Golf club head'2006D0521091'Golf club head'20066,988,960'Golf club head with peripheral weighting'20066,986,715'Golf club head with a face insert'2006D0509869'Golf club head'20056,935,967'Golf club set with progressive weight pad'20056,890,267'Golf club head with peripheral weighting'20056,860,818'Golf club head with peripheral weighting'2005D0499779'Golf club head'2004D0492377'Golf club head'2004D0443665'Golf club head having rear cavity plate'20016,074,309'Laminated lightweight inserts for golf club heads'20005,827,131'Laminated lightweight inserts for golf club heads'19985,549,297'Golf club iron with vibration dampening ramp bar'19965,518,242'Crownless golf club'19965,429,354'Crownless golf club'19955,419,559'Metal wood with sound dampener bar'1995D0318511'Golf club head'1991D0318510'Golf club head'1991D0316583'Golf club head'19914,762,322'Golf club'1988D0295207'Golf club grip'1988D0270852'Golf putter head'1983D0269101'Golf club iron head'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983Patents assigned to QUESTOR CORP (2)· patent assignee history
1983–1988Based in Monson, MA, US· patent location history
1988–1991Patents assigned to SPALDING & EVENFLO COMPANIES INC (4)· patent assignee history
1988Patents assigned to SPALDING & EVENFLO (1)· patent assignee history
1988–2000Based in Hampden, MA, US· patent location history
1995–1998Patents assigned to LISCO INC (4)· patent assignee history
2004–2008Patents assigned to CALLAWAY GOLF CO (13)· patent assignee history
2004–2005Based in Belchertown, MA, US· patent location history
2006–2008Based in San Marcos, CA, US· patent location history
2006Based in Northampton, MA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CALLAWAY GOLF CO132004–2008
LISCO INC41995–1998
SPALDING & EVENFLO COMPANIES INC41988–1991
QUESTOR CORP21983
SPALDING & EVENFLO11988
Locations
LocationPatentsSpan
Hampden, Massachusetts, US101988–2000
San Marcos, California, US72006–2008
Belchertown, Massachusetts, US62004–2005
Monson, Massachusetts, US31983–1988
Northampton, Massachusetts, US12006