Inventor · disambiguated record
Hengli Cong
Also filed as: CONG HENGLI
3 granted patents·2 citations·filing 2006–2014
52Inventor score
Technology areasF04C
Top patents by PatentIndex Score
3 records- 0161US8283879B2Braking controller of a three-phase permanent magnetic brushless DC motor for directly driving a screw pumpLIU JUN·Filed 2006·Granted Oct 9, 2012·2 cites·3 claims
- 0249US9059606B2Surface motor direct-drive sucker-rod screw pump deviceMILLENNIUM OILFLOW SYSTEMS & TECHNOLOGY INC·Filed 2014·Granted Jun 16, 2015·0 cites·16 claims
- 0344US8702400B2Surface motor direct-drive sucker-rod screw pump deviceLIU JUN·Filed 2006·Granted Apr 22, 2014·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →