Individual holder
PERKINS SONNIE J
9 granted patents·927 citations·filing 1979–1990
Individually held — no corporate assignee on record.
Technology mixA63B5
Top patents by PatentIndex Score
9 records- 0198USD294617SBall flight on golf club headPERKINS SONNIE J·Filed 1985·Granted Mar 8, 1988·268 cites·1 claims
- 0298US4607846AGolf club heads with adjustable weightingPERKINS SONNIE J·Filed 1986·Granted Aug 26, 1986·368 cites·20 claims
- 0392US4919428AGolf putter with blade tracking, twist prevention and alignment transfer structure, alignment maintaining structures, and audible impact featuresPERKINS SONNIE J·Filed 1988·Granted Apr 24, 1990·124 cites·16 claims
- 0482US4231576AGolf club head alignment apparatusPERKINS SONNIE J·Filed 1979·Granted Nov 4, 1980·48 cites·5 claims
- 0581US4456257AGolf club swing training devicePERKINS SONNIE J·Filed 1982·Granted Jun 26, 1984·53 cites·13 claims
- 0672USD272257SCombined golf putter hosel and alignment indicatorPERKINS SONNIE J·Filed 1981·Granted Jan 17, 1984·12 cites·1 claims
- 0765US4997189APutting teaching and learning apparatus and methodPERKINS SONNIE J·Filed 1990·Granted Mar 5, 1991·38 cites·17 claims
- 0865USD295206SGolf club headPERKINS SONNIE J·Filed 1985·Granted Apr 12, 1988·11 cites·1 claims
- 0948USD295205SPutter headPERKINS SONNIE J·Filed 1985·Granted Apr 12, 1988·5 cites·1 claims
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