For the Inventor, By the Inventor

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Vertechs Petroleum Technology Innovation & Equipment Manufacturing Co., Ltd

USPTO Granted Patents = 2

CIPO Patents = 1

Forward Citations = 1

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2 inventors (with patents filed for the assignee):

Qijun Zeng (2 out of 9 patents)

Wei Zheng (1 out of 5 patents)

2 patents: Sort by Forward Citations

1. 11326416 - Spiral deployed isolation tool (2022-05-10),

2. 11261691 - Integrated coupling and downhole plugging system and plugging method (2022-03-01),

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USPTO Data Jan 1 1976 - Dec 30 2025

2 Patents

#98 in Chengdu

#10,021 in China

Vertechs Petroleum Technology Innovation & Equipment Manufacturing Co., Ltd

Forward Citations = 1

2 inventors:

Qijun Zeng (2 out of 9 patents)

Wei Zheng (1 out of 5 patents)

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