Inventor · disambiguated record

En Long Zhen

Also filed as: Zhen En Long

1 granted patent·18 citations·filing 2020–2020

39Inventor score

Technology areasC09K

Files withUNIV SOUTHWEST PETROLEUM1

Top patents by PatentIndex Score

1 record

0191US10889745B1Plugging agent with temperature-resistant, salt-resistant and high-expansion for plugging large fractures and preparation method thereofUNIV SOUTHWEST PETROLEUM·Filed 2020·Granted Jan 12, 2021·18 cites·2 claims

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