Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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EEEvolution Engineering: 2 patents #18 of 37Top 50%
Calgary, CA: #771 of 5,407 inventorsTop 15%
Overall (All Time): #949,526 of 4,157,543Top 25%
5 Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
11821304 Downhole telemetry system having an electro-magnetic reciever and a mud pulser and method therefor Zhenyuan Hu, Fuchun Liu, Silviu Calin, Zhiqun Wang, Jack Wang +1 more 2023-11-21
11441419 Downhole telemetry system having a mud-activated power generator and method therefor Zhenyuan Hu, Fuchun Liu, Silviu Calin, Zhiqun Wang, Jack Wang +1 more 2022-09-13
10941651 Downhole telemetry system and method therefor Zhenyuan Hu, Fuchun Liu, Silviu Calin, Zhiqun Wang, Jack Wang +1 more 2021-03-09
9608467 System and method for charging a capacitor used to power measurement-while-drilling equipment Jili Liu 2017-03-28
9567835 System and method for managing batteries for use in a downhole drilling application Jili Liu, David A. Switzer, Aaron W. Logan 2017-02-14