Inventor · disambiguated record
John David Pierson
Also filed as: PIERSON JOHN DAVID
3 granted patents·0 citations·filing 2016–2017
39Inventor score
Top patents by PatentIndex Score
3 records- 0128US11585057B2Transition barrier for connecting a permanent barrier to a temporary barrierAMG METALS INC·Filed 2017·Granted Feb 21, 2023·0 cites·34 claims
- 0228US10873287B2Apparatus and method for attaching signs to foundation members such as road barriersPOWELL RICHMOND HILL CONTRACTING LTD·Filed 2016·Granted Dec 22, 2020·0 cites·15 claims
- 0325US10961671B2Apparatus and method for attaching signs to foundation members such as road barriersAMG METALS INC·Filed 2017·Granted Mar 30, 2021·0 cites·57 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →