Individual holder
JOHNSON MARK D
US·4 granted patents·1 pending application·109 citations·filing 1987–2017
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
5 records- 0191US4741176ABeverage coolerJOHNSON MARK D·Filed 1987·Granted May 3, 1988·95 cites·1 claims
- 0282US9988186B1Tool storage deviceJOHNSON MARK D·Filed 2016·Granted Jun 5, 2018·7 cites·13 claims
- 0371US8459070B2Combination locks with improved code-changing featuresJOHNSON MARK D·Filed 2011·Granted Jun 11, 2013·6 cites·20 claims
- 0457US2008201158A1System and method for visitation management in a controlled-access environmentJOHNSON MARK D·Filed 2007·Application pending·0 cites
- 0535USD841559SLift tool boxJOHNSON MARK D·Filed 2017·Granted Feb 26, 2019·1 cites·1 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →