Methods of increasing efficiency of plunger lift operations
US-12546304-B2 · Feb 10, 2026 · US
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Schmidt David J patents
Schmidt David J is listed as an inventor on 35 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Schmidt David J |
| Total patents | 35 |
| First publication | Sep 13, 2016 |
| Latest publication | Feb 10, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Hardhat with air conduit
US-2026027390-A1 · Jan 29, 2026 · US
Air supply attachment for a helmet
US-D1100364-S · Oct 28, 2025 · US
Hardhat with air conduit
US-2025249295-A1 · Aug 7, 2025 · US
Hood for hardhat and respirator apparatus
US-2025221486-A1 · Jul 10, 2025 · US
Conduit assembly for brimmed hardhat
US-2025212985-A1 · Jul 3, 2025 · US
Hardhat with shaped air conduit
US-2025213895-A1 · Jul 3, 2025 · US
Silicone-modified polyurea coating compositions
US-2025026952-A1 · Jan 23, 2025 · US
Air supply attachment for a helmet
US-D1057296-S · Jan 7, 2025 · US
Method and system for acoustic monitoring and pattern recognition in hydrocarbon management activities
US-11795783-B2 · Oct 24, 2023 · US
Recent patents
Latest publications not already listed above.
Methods of interpreting a plurality of time-series datasets generated from operation of hydrocarbon wells
US-2023220758-A1 · Jul 13, 2023 · US
Methods of characterizing acoustic output from hydrocarbon wells
US-2023066787-A1 · Mar 2, 2023 · US
Methods of Increasing Efficiency of Plunger Lift Operations
US-2022372852-A1 · Nov 24, 2022 · US
Washer fluid level detection
US-11454979-B2 · Sep 27, 2022 · US
Controller with automatic tuning and method
US-11131181-B2 · Sep 28, 2021 · US
Sensor assembly
US-11035934-B2 · Jun 15, 2021 · US
Vehicle control lockout
US-10889264-B2 · Jan 12, 2021 · US
Method And System For Acoustic Monitoring And Pattern Recognition In Hydrocarbon Management Activities
US-2020370414-A1 · Nov 26, 2020 · US
Sensor assembly
US-10823824-B2 · Nov 3, 2020 · US
Sensor cleaning and thermal control
US-10766464-B2 · Sep 8, 2020 · US
Vehicle service control
US-10627245-B2 · Apr 21, 2020 · US
Vehicle sensor cleaning
US-10435077-B2 · Oct 8, 2019 · US
Vehicle control lockout
US-2019299926-A1 · Oct 3, 2019 · US
Sensor cleaning and thermal control
US-2019275991-A1 · Sep 12, 2019 · US
Washer fluid level detection
US-2019265715-A1 · Aug 29, 2019 · US
Washing apparatus for a sensor enclosure
US-10391981-B2 · Aug 27, 2019 · US
Vehicle sensor cleaning
US-2019161125-A1 · May 30, 2019 · US
Sensor assembly
US-2019154800-A1 · May 23, 2019 · US
Sensor assembly
US-2019154799-A1 · May 23, 2019 · US
Vehicle service control
US-2019107401-A1 · Apr 11, 2019 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Ford Global Tech Llc | 19 |
| 3M Innovative Properties Company | 7 |
| Exxonmobil Upstream Res Co | 5 |
| Exxonmobil Technology & Engineering Company | 2 |
| Ppg Ind Ohio Inc | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| G02B27/0006 | 6 |
| G01S7/4813 | 6 |
| B60H2001/003 | 6 |
| B60H1/00271 | 6 |
| F16L11/11 | 5 |