Inventor · disambiguated record
Keith C. Johansen
Also filed as: JOHANSEN KEITH C
14 granted patents·5 pending applications·153 citations·filing 2016–2024
93Inventor score
Files withFHE USA LLC19
Top patents by PatentIndex Score
19 records- 0198US9879496B2Remotely-actuated high pressure seals for wellhead pressure control fittingsFHE USA LLC·Filed 2017·Granted Jan 30, 2018·23 cites·20 claims
- 0298US9670745B1High pressure seals for wellhead pressure control fittingsFHE USA LLC·Filed 2016·Granted Jun 6, 2017·29 cites·10 claims
- 0398US9644443B1Remotely-operated wellhead pressure control apparatusFHE USA LLC·Filed 2016·Granted May 9, 2017·41 cites·20 claims
- 0497US10550659B2Remotely operated fluid connection and sealFHE USA LLC·Filed 2018·Granted Feb 4, 2020·12 cites·29 claims
- 0597US10072474B2Pressure-retaining seals for multiple applicationsFHE USA LLC·Filed 2017·Granted Sep 11, 2018·15 cites·20 claims
- 0697US10030461B2Constricting wedge design for pressure-retaining sealFHE USA LLC·Filed 2018·Granted Jul 24, 2018·18 cites·10 claims
- 0795US11319766B2Pressure-retaining connector useful on wellheadsFHE USA LLC·Filed 2020·Granted May 3, 2022·3 cites·4 claims
- 0894US10309180B2Translocating wedge design for pressure-retaining sealFHE USA LLC·Filed 2018·Granted Jun 4, 2019·6 cites·22 claims
- 0992US11313195B2Fluid connection with lock and sealFHE USA LLC·Filed 2021·Granted Apr 26, 2022·2 cites·30 claims
- 1090US11680456B2Pressure-retaining connectorFHE USA LLC·Filed 2022·Granted Jun 20, 2023·1 cites·4 claims
- 1186US10907435B2Fluid connection and sealFHE USA LLC·Filed 2019·Granted Feb 2, 2021·2 cites·30 claims
- 1283US12252949B2Fluid connection assembly with adapter releaseFHE USA LLC·Filed 2023·Granted Mar 18, 2025·1 cites·20 claims
- 1378US12173577B2Locking fluid connection with sealFHE USA LLC·Filed 2023·Granted Dec 24, 2024·0 cites·20 claims
- 1469US11692408B2Fluid connection assemblyFHE USA LLC·Filed 2020·Granted Jul 4, 2023·0 cites·16 claims
- 1564US2019277104A1Pressure-retaining seals useful in wellheadsFHE USA LLC·Filed 2019·Application pending·0 cites
- 1662US2019301260A1Remotely operated fluid connectionFHE USA LLC·Filed 2018·Application pending·0 cites
- 1753US2025043648A1Fluid connection and seal useful at wellheadsFHE USA LLC·Filed 2024·Application pending·0 cites
- 1846US2020016611A1Centrifugal solids separatorFHE USA LLC·Filed 2018·Application pending·0 cites
- 1943US2019145213A1Positive engagement indicator for remotely operated well pressure control apparatusFHE USA LLC·Filed 2018·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →