DS

David A. Switzer

EE Evolution Engineering: 13 patents #4 of 26Top 20%
📍 Conroe, TX: #2 of 150 inventorsTop 2%
🗺 Texas: #135 of 17,606 inventorsTop 1%
Overall (2019): #4,573 of 560,194Top 1%
14
Patents 2019

Issued Patents 2019

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
10513892 Rotary locking sub for angular alignment of downhole sensors with high side in directional drilling Aaron W. Logan, Patrick R. Derkacz, Justin C. Logan 2019-12-24
10494879 Universal downhole probe system Aaron W. Logan, Justin C. Logan, Patrick R. Derkacz 2019-12-03
10443374 Electromagnetic communications system and method for a drilling operation Jili Liu, Mingdong Xu, Mojtaba Kazemi Miraki, Aaron W. Logan 2019-10-15
10400520 Electromagnetic telemetry gap sub assembly with insulating collar Aaron W. Logan, Daniel W. Ahmoye, Justin C. Logan, Patrick R. Derkacz, Mojtaba Kazemi Miraki 2019-09-03
10352111 Drill collar with integrated probe centralizer Aaron W. Logan, Justin C. Logan, Patrick R. Derkacz 2019-07-16
10329901 Surface display interface for data from downhole systems Sheng-Guo Xu, Aaron W. Logan, Anquan Men, Kurtis West, Barry Daniel Buternowsky +4 more 2019-06-25
10287871 Axially-supported downhole probes Aaron W. Logan, Justin C. Logan, Patrick R. Derkacz 2019-05-14
10280741 Optimizing downhole data communication with at bit sensors and nodes Patrick R. Derkacz, Aaron W. Logan, Justin C. Logan, Jili Liu, Robert A. Harris +2 more 2019-05-07
10253621 Integrated downhole system with plural telemetry subsystems Aaron W. Logan, Jili Liu, Justin C. Logan, Mingdong Xu 2019-04-09
10233747 Optimizing electromagnetic telemetry transmissions Jili Liu, Mingdong Xu, Aaron W. Logan, Monica E. Varga, Mojtaba Kazemi Miraki 2019-03-19
10215021 Downhole electromagnetic and mud pulse telemetry apparatus Jili Liu, Aaron W. Logan, Mingdong Xu 2019-02-26
10214971 Apparatus for angular alignment of downhole sensors with high side in directional drilling Aaron W. Logan, Patrick R. Derkacz, Justin C. Logan 2019-02-26
10202844 Method and system for transmitting a data frame of an electromagnetic telemetry signal to or from a downhole location Jili Liu, Mingdong Xu, Aaron W. Logan 2019-02-12
10196892 Detection of downhole data telemetry signals Aaron W. Logan, Daniel W. Ahmoye, Jili Liu 2019-02-05