Shan Ren

Person

Chengdu, CN

People

Patents Grantslast 30 patents

Information Patent Grant
High-temperature-resistant deep penetration molecular membrane acid...
- Patent number 12,234,309
- Issue date Feb 25, 2025
- Chengdu LEPS Technology Co., Ltd
- Jianchun Guo
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Instant soluble temperature and salt resistant polyacrylamide and t...
- Patent number 12,227,696
- Issue date Feb 18, 2025
- Chengdu LEPS Technology Co., Ltd
- Jianchun Guo
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Structural stabilizer for fiber and conventional proppant complex i...
- Patent number 11,845,896
- Issue date Dec 19, 2023
- Chengdu LEPS Technology Co., Ltd
- Jianchun Guo
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Method for determining sand pumping parameters based on width distr...
- Patent number 11,408,281
- Issue date Aug 9, 2022
- SOUTHWEST PETROLEUM UNIVERSITY
- Qianli Lu
- E21 - EARTH DRILLING MINING
Information Patent Grant
Sleeve fracturing assembly, device using the same and method for us...
- Patent number 10,450,837
- Issue date Oct 22, 2019
- China Petroleum and Chemical Corporation
- Zhenwei Gan
- E21 - EARTH DRILLING MINING
Information Patent Grant
Sleeve fracturing assembly, device using the same and method for us...
- Patent number 9,708,889
- Issue date Jul 18, 2017
- China Petroleum and Chemical Corporation
- Zhenwei Gan
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
INSTANT SOLUBLE TEMPERATURE AND SALT RESISTANT POLYACRYLAMIDE AND T...
- Publication number 20240327699
- Publication date Oct 3, 2024
- Chengdu LEPS Technology Co., Ltd
- Jianchun GUO
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
METHOD AND TEST SYSTEM FOR DETERMINING SAND PUMPING PARAMETERS BASE...
- Publication number 20220090495
- Publication date Mar 24, 2022
- SOUTHWEST PETROLEUM UNIVERSITY
- Qianli Lu
- E21 - EARTH DRILLING MINING
Information Patent Application
SLEEVE FRACTURING ASSEMBLY, DEVICE USING THE SAME AND METHOD FOR US...
- Publication number 20170234110
- Publication date Aug 17, 2017
- China Petroleum and Chemical Corporation
- Zhenwei Gan
- E21 - EARTH DRILLING MINING
Information Patent Application
SLEEVE FRACTURING ASSEMBLY, DEVICE USING THE SAME AND METHOD FOR US...
- Publication number 20140124213
- Publication date May 8, 2014
- CHINA PETROLEUM AND CHEMICAL CORPORATION SOUTHWEST OIL AND GAS COMPANY
- Zhenwei Gan
- E21 - EARTH DRILLING MINING

Person

Patents Grantslast 30 patents

High-temperature-resistant deep penetration molecular membrane acid...

Instant soluble temperature and salt resistant polyacrylamide and t...

Structural stabilizer for fiber and conventional proppant complex i...

Method for determining sand pumping parameters based on width distr...

Sleeve fracturing assembly, device using the same and method for us...

Sleeve fracturing assembly, device using the same and method for us...

Patents Applicationslast 30 patents

INSTANT SOLUBLE TEMPERATURE AND SALT RESISTANT POLYACRYLAMIDE AND T...

METHOD AND TEST SYSTEM FOR DETERMINING SAND PUMPING PARAMETERS BASE...

SLEEVE FRACTURING ASSEMBLY, DEVICE USING THE SAME AND METHOD FOR US...

SLEEVE FRACTURING ASSEMBLY, DEVICE USING THE SAME AND METHOD FOR US...