Hongshan Li

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Guanghan, Sichuan, CN

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Patents Grantslast 30 patents

Information Patent Grant
Fully electric-drive sand-mixing apparatus, and automatic control s...
- Patent number 12,157,097
- Issue date Dec 3, 2024
- SICHUAN HONGHUA PETROLEUM EQUIPMENT CO., LTD.
- Yu Tian
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Electric fracturing operation system
- Publication number 20230175376
- Publication date Jun 8, 2023
- SICHUAN HONGHUA PETROLEUM EQUIPMENT CO., LTD.
- Meiying Xie
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
FULLY ELECTRIC-DRIVE SAND-MIXING APPARATUS, AND AUTOMATIC CONTROL S...
- Publication number 20220219129
- Publication date Jul 14, 2022
- SICHUAN HONGHUA PETROLEUM EQUIPMENT CO., LTD.
- Yu Tian
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL