Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Patrick R. Derkacz — 50 Patents

EEEvolution Engineering: 47 patents #4 of 37Top 15%
Calgary, CA: #27 of 5,407 inventorsTop 1%
Overall (All Time): #53,743 of 4,157,543Top 2%
50 Patents All Time
Patrick R. Derkacz has been granted 50 US patents while listed as an inventor at Evolution Engineering. The first was granted in 2016 and the most recent in May 2025. Patrick R. Derkacz ranks #53,743 of 4,157,543 US inventors in our database (top 1.3%). Patent records list Patrick R. Derkacz in Calgary, AB, CA.

Issued Patents All Time

Showing 1–25 of 50 patents

Patent #TitleCo-InventorsDate
12297735 Centralizer for downhole probes Aaron W. Logan, Justin C. Logan 2025-05-13
11795769 Centralizer for downhole probes Aaron W. Logan, Justin C. Logan 2023-10-24
11686159 Torsion resistant gap sub Luke Anthony Stack, Aaron W. Logan, Justin C. Logan, Mojtaba Kazemi Miraki, Gavin Gaw-Wae Lee +3 more 2023-06-27
11280437 Sealed gap sub Luke Anthony Stack, Aaron W. Logan, Justin C. Logan, Gavin Gaw-Wae Lee, Hasan Alper Hepguvendik +4 more 2022-03-22
11213989 Downhole probe sleeves and methods for making probe sleeves Luke Anthony Stack, Aaron W. Logan, Justin C. Logan 2022-01-04
11215014 Preloadable connectors for tubing Justin C. Logan, Luke Anthony Stack, Gavin Gaw-Wae Lee, Aaron W. Logan 2022-01-04
11105159 Torsion resistant gap sub Luke Anthony Stack, Aaron W. Logan, Justin C. Logan, Mojtaba Kazemi Miraki, Gavin Gaw-Wae Lee +3 more 2021-08-31
11085247 Securing means for in-tubing probe retainer Luke Anthony Stack, Aaron W. Logan, Justin C. Logan, Kurtis West, Robert A. Harris 2021-08-10
10934784 Seal and sacrificial components for a drill string Justin C. Logan, Aaron W. Logan, Angelica J. B. Francoeur, Jason B. Wackett, Danick R. J. Normandeau +1 more 2021-03-02
10871041 Centralizer for downhole probes Aaron W. Logan, Justin C. Logan 2020-12-22
10837240 Seal and sacrificial components for a drill string Justin C. Logan, Aaron W. Logan, Angelica J. B. Francoeur, Jason B. Wackett, Danick R. J. Normandeau +1 more 2020-11-17
10648247 Centralizer for downhole probes Aaron W. Logan, Justin C. Logan 2020-05-12
10598000 Methods and apparatus for downhole probes Jili Liu, Aaron W. Logan, Justin C. Logan, David A. Switzer 2020-03-24
10513892 Rotary locking sub for angular alignment of downhole sensors with high side in directional drilling Aaron W. Logan, Justin C. Logan, David A. Switzer 2019-12-24
10494879 Universal downhole probe system Aaron W. Logan, Justin C. Logan, David A. Switzer 2019-12-03
10422921 Downhole system with integrated backup sensors Aaron W. Logan, Justin C. Logan, Barry Daniel Buternowsky, Mojtaba Kazemi Miraki 2019-09-24
10400520 Electromagnetic telemetry gap sub assembly with insulating collar Aaron W. Logan, Daniel W. Ahmoye, David A. Switzer, Justin C. Logan, Mojtaba Kazemi Miraki 2019-09-03
10358906 Downhole probe centralizer Aaron W. Logan, Justin C. Logan 2019-07-23
10352151 Downhole electronics carrier Aaron W. Logan, Justin C. Logan 2019-07-16
10352111 Drill collar with integrated probe centralizer Aaron W. Logan, Justin C. Logan, David A. Switzer 2019-07-16
10301931 Measuring while drilling systems, method and apparatus Aaron W. Logan, Justin C. Logan, Kurtis West, Jili Liu, Barry Daniel Buternowsky 2019-05-28
10301887 Drill string sections with interchangeable couplings Aaron W. Logan, Justin C. Logan 2019-05-28
10301891 Jig for coupling or uncoupling drill string sections with detachable couplings and related methods Aaron W. Logan, Justin C. Logan 2019-05-28
10295060 Method for sealing a gap sub assembly Hasan Alper Hepguvendik, Aaron W. Logan, Justin C. Logan, Gavin Gaw-Wae Lee, Luke Anthony Stack +2 more 2019-05-21
10287871 Axially-supported downhole probes Aaron W. Logan, Justin C. Logan, David A. Switzer 2019-05-14