Individual holder
DUFRESNE ROBERT P
CA·3 granted patents·1 pending application·12 citations·filing 2008–2014
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0189US8123917B2Contact bar for capping boardDUFRESNE ROBERT P·Filed 2008·Granted Feb 28, 2012·10 cites·9 claims
- 0277US9222184B2Contact bar with multiple support surfaces and insulating capping boardDUFRESNE ROBERT P·Filed 2012·Granted Dec 29, 2015·2 cites·36 claims
- 0358US8986521B2Contact bar for capping boardDUFRESNE ROBERT P·Filed 2012·Granted Mar 24, 2015·0 cites·38 claims
- 0458US2015048172A1Insulating anti-corrosive rail clamp integrally made of polymeric compositionDUFRESNE ROBERT P·Filed 2014·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →