Inventor · disambiguated record
Darin Grassmann
Also filed as: GRASSMANN DARIN
3 granted patents·2 pending applications·14 citations·filing 2018–2022
65Inventor score
Files withOIL STATES ENERGY SERVICES LLC5
Top patents by PatentIndex Score
5 records- 0191US10309564B1Extendable spoolOIL STATES ENERGY SERVICES LLC·Filed 2018·Granted Jun 4, 2019·7 cites·10 claims
- 0289US11214455B2Extendable spoolOIL STATES ENERGY SERVICES LLC·Filed 2019·Granted Jan 4, 2022·4 cites·14 claims
- 0388US11168528B2Universal atmospheric deployment deviceOIL STATES ENERGY SERVICES LLC·Filed 2020·Granted Nov 9, 2021·3 cites·22 claims
- 0444US2022307362A1Frac manifold isolation toolOIL STATES ENERGY SERVICES LLC·Filed 2022·Application pending·0 cites
- 0543US2023148442A9Flow diverterOIL STATES ENERGY SERVICES LLC·Filed 2022·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →