Individual holder
JOHNSON MARK F
US·3 granted patents·6 citations·filing 2011–2017
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0174US8550755B2Tap driver for rigid/synchronous tappingJOHNSON MARK F·Filed 2011·Granted Oct 8, 2013·4 cites·9 claims
- 0266US9539646B2Self-synchronizing tap driver for rigid/synchronous tapping with adjustable tension and/or compressionJOHNSON MARK F·Filed 2011·Granted Jan 10, 2017·2 cites·16 claims
- 0349US10500893B2Scribing-engraving tool holderJOHNSON MARK F·Filed 2017·Granted Dec 10, 2019·0 cites·15 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →