Andrew Mitchell has been granted 12 US patents while listed as an inventor at Dril-Quip . The first was granted in 2021 and the most recent in September 2025. Andrew Mitchell ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Andrew Mitchell in Houston, TX, US.
Patents per Year Patents granted per year, 2021 to 2025 Bar chart with a peak of 4 patents in 2021. peak 4 2021: 4 patents 2021 2022: 1 patents 2022 2023: 1 patents 2023 2024: 3 patents 2024 2025: 3 patents 2025
Issued Patents All Time
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Showing 1–12 of 12 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
12404734 Lock ring actuator for tubing hanger installation Chris D. Bartlett , David Scantlebury , Rick Murphy , Fife B. Ellis , Gregory Norwood 2025-09-02
12320222 Subsea equipment alignment device Blake T. DeBerry , Morris B. Wade , Flavio Santos , Gregory Norwood , Robert Buxton +4 more 2025-06-03
12190865 Wakeword detection using a secondary microphone Gabor Nagy 2025-01-07
12152456 Rigidized seal assembly using automated space-out mechanism — 2024-11-26
$10,061,000
12084937 Barrier arrangement in wellhead assembly Chris D. Bartlett , Daniel J. McLaughlin , Raymond A. Guillory , Blake T. DeBerry , Marcus Smedley +3 more 2024-09-10
11952853 Subsea equipment alignment device Blake T. DeBerry , Morris B. Wade , Flavio Santos , Gregory Norwood , Robert Buxton +4 more 2024-04-09
11773678 Barrier arrangement in wellhead assembly Chris D. Bartlett , Daniel J. McLaughlin , Raymond A. Guillory , Blake T. DeBerry , Marcus Smedley +3 more 2023-10-03
$9,033,000
11459843 Tubing hanger space-out mechanism Chris D. Bartlett , David Scantlebury , Rick Murphy , Fife B. Ellis , Gregory Norwood 2022-10-04
11199066 Subsea equipment alignment device Blake T. DeBerry , Morris B. Wade , Flavio Santos , Gregory Norwood , Robert Buxton +4 more 2021-12-14
11180968 Tubing hanger alignment device Robert Buxton , David Scantlebury , Matthew Crotwell , Gregory Norwood , Justin Rye 2021-11-23
11024290 Wakeword detection using a secondary microphone Gabor Nagy 2021-06-01
$261,917,000
10997971 Wakeword detection using a secondary microphone Gabor Nagy 2021-05-04
$229,909,000
