Inventor · disambiguated record
Spencer Dale Johnson
Also filed as: JOHNSON SPENCER · JOHNSON SPENCER DALE
6 granted patents·1 pending application·10 citations·filing 2017–2024
75Inventor score
Top patents by PatentIndex Score
7 records- 0193US11332076B2Ladder systems, agricultural vehicles, and related methodsAGCO CORP·Filed 2020·Granted May 17, 2022·3 cites·20 claims
- 0289US10029705B2Railroad tank car manway assemblyUNION TANK CAR CO·Filed 2017·Granted Jul 24, 2018·5 cites·18 claims
- 0380US10464580B2Railroad tank car manway assemblyUNION TANK CAR CO·Filed 2018·Granted Nov 5, 2019·2 cites·18 claims
- 0479US12024126B2Ladder systems, agricultural vehicles, and related methodsAGCO CORP·Filed 2023·Granted Jul 2, 2024·0 cites·20 claims
- 0576US11634082B2Ladder systems, agricultural vehicles, and related methodsAGCO CORP·Filed 2022·Granted Apr 25, 2023·0 cites·20 claims
- 0651US12458158B2Hammock sleeping bagKELL OUTFITTERS LLC·Filed 2024·Granted Nov 4, 2025·0 cites·24 claims
- 0730US2017316631A1Polling systems and methodsBEK HOLDINGS LLC·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →