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Pengfei Ma

Caterpillar: 48 patents #26 of 8,398Top 1%
SM Shin Caterpillar Mitsubishi: 8 patents #7 of 184Top 4%
Huawei: 3 patents #4,041 of 15,535Top 30%
ED Empire Technology Development: 1 patents #283 of 547Top 55%
PL Progress Rail Locomotive: 1 patents #31 of 86Top 40%
Overall (All Time): #47,942 of 4,157,543Top 2%
53
Patents All Time

Issued Patents All Time

Showing 25 most recent of 53 patents

Patent #TitleCo-InventorsDate
12428815 Swing pump controls Brett J. Janson, Tonglin Shang, Sean Johnson 2025-09-30
12286986 Method for monitoring operation of a hydraulic system 2025-04-29
12188775 Method and apparatus for recognizing special road condition, electronic device, and storage medium 2025-01-07
D1056744 Flow sensor Bin Zhang, Xinzhun Chen, Weidong Zeng, Wenji Xu, Guoning Li 2025-01-07
11719265 Cooler bypass valve assembly for hydraulic system return circuit Gustaf Andrew Johnson, Jordan Garrity 2023-08-08
11572925 Brake slack adjuster having sensing piston with orifice and systems, components, and methods thereof Puning Wei, Aleksander Gust 2023-02-07
11430319 Cavitation detection system Nathan S. Pauli, Kalpeshkumar N. Patel, Richard A. Carpenter, James Siegle, Vignesh Jayakumar +1 more 2022-08-30
10385892 System and method for providing hydraulic power Sharath Cugati, Christoper Williamson, Mark Vonderwell, Sean Johnson, James W. Fuerst +1 more 2019-08-20
10337532 Split spool valve Aleksandar Egelja, Justin Douglas Speichinger, Shuhei Orimoto, Tetsuya Yoshino, Hideki Nakajima +4 more 2019-07-02
10320660 Method and device for transmitting forwarding parameter Guangxue Yu, Cheng Chen 2019-06-11
9973352 Information sending method, apparatus, and communications system Lei Li 2018-05-15
9951795 Integration of swing energy recovery and engine anti-idling systems Tonglin Shang, Dayao Chen, Jeremy T. Peterson, Emily A. Morris 2018-04-24
9945396 Fluid systems for machines with integrated energy recovery circuit Tonglin Shang, Aleksandar Egelja, Kalpesh Patel, Jiao Zhang, Dayao Chen 2018-04-17
9897120 Hydraulic system having energy recovery Jiao Zhang, Tonglin Shang, Peter Spring, Randal N. Peterson, Rustu Cesur 2018-02-20
9829014 Hydraulic system including independent metering valve with flowsharing Andrew J. Kleitsch, Jason L. Brinkman, Mikhail A. Sorokin 2017-11-28
9809958 Engine assist by recovering swing kinetic energy Tonglin Shang, Dayao Chen 2017-11-07
9745940 Machine having hydraulic start assist system Emily A. Morris, Jeremy T. Peterson, Jeffrey L. Kuehn, Dayao Chen 2017-08-29
9618014 Implement system having hydraulic start assist Emily A. Morris, Jeremy T. Peterson, Jeffrey L. Kuehn, Dayao Chen 2017-04-11
9556591 Hydraulic system recovering swing kinetic and boom potential energy Tonglin Shang, Jiao Zhang, Dayao Chen 2017-01-31
9458604 Hybrid apparatus and method for hydraulic systems Jiao Zhang, Michael Schwab 2016-10-04
9388829 Hydraulic control system having swing motor energy recovery Jiao Zhang, Lawrence J. Tognetti, Dayao Chen, John Ferraz, Jr., Tetsuya Yoshino 2016-07-12
9366269 Hydraulic accumulator health diagnosis Dayao Chen, Tonglin Shang, Bryan J. Hillman 2016-06-14
9328744 Hydraulic control system having swing energy recovery Rustu Cesur, Lawrence J. Tognetti, Jiao Zhang, Tonglin Shang 2016-05-03
9290912 Energy recovery system having integrated boom/swing circuits Gang Wen, Jiao Zhang, Tonglin Shang 2016-03-22
9290911 Energy recovery system for hydraulic machine Tonglin Shang, Jiao Zhang, Dayao Chen, Gang Wen 2016-03-22