Inventor · disambiguated record

Tinghan Zhang

Also filed as: ZHANG TINGHAN

1 granted patent·25 citations·filing 2002–2002

42Inventor score

Technology areasE21B

Files withXI AN TONGYUAN PETROTECH CO LT1

Top patents by PatentIndex Score

1 record

0152US6991044B2High-energy combined well perforating deviceXI AN TONGYUAN PETROTECH CO LT·Filed 2002·Granted Jan 31, 2006·25 cites·17 claims

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