Individual holder
LEONARD SCHALK J
US·3 granted patents·23 citations·filing 2009–2015
Individually held — no corporate assignee on record.
Technology mixA63B2
Top patents by PatentIndex Score
3 records- 0168US9044661B2Golf putting stroke training deviceLEONARD SCHALK J·Filed 2009·Granted Jun 2, 2015·11 cites·18 claims
- 0255USD691687SGolf putting stroke training deviceLEONARD SCHALK J·Filed 2012·Granted Oct 15, 2013·12 cites·1 claims
- 0340US9604117B2Golf stroke training deviceLEONARD SCHALK J·Filed 2015·Granted Mar 28, 2017·0 cites·20 claims
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