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Top 5 Key Players companies in Diesel exhaust fluid
by Highest Patent Value in the China in 2019

The Diesel exhaust fluid top 5 is Discovery PatSnap’ annual ranking of the top 5 Highest Patent Value Diesel exhaust fluid Key Players in the China. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2019, ranking from differnt perspectives, including patent filing intensity, academic research capability, news media heat. The company list is generated from various data types.
Diesel exhaust fluid (DEF) is an aqueous urea solution made with 32.5% urea and 67.5% deionized water. It is standardised as AUS 32 (aqueous urea solution) in ISO 22241. DEF is a consumable in selective catalytic reduction (SCR) that lowers NOₓ concentration in the diesel exhaust emissions from diesel engines.

Key Players

Fast-growings

Startups & Unicorns

New Entrants

Ranking Year:

2022

2021

2020

2019

2018

Region:

Global

China

United States

Germany

Ranking:

Most Patent Filings

Highest Patent Value

Most Patent Citation

Most News Heat

#
Company Name
Region
Tech Topics
Total
1
China Petroleum & Chemical Corp.
Beijing Shi, China
Petrochemical,Petroleum,Enterprise software,
...[+2]
Avg patent value: 160,000
2
Sinopec Beijing Research Institute of Chemical Industry
Beijing Shi, China
Petrochemical,Methanation,Ethylene oxide,
...[+2]
Avg patent value: 160,000
3
North Huajin Chemicals Industry Group Corp.
Liaoning Sheng, China
Fertilizer,Chemical engineering
Avg patent value: 110,000
4
China Chengda Engineering Co., Ltd.
Sichuan Sheng, China
Petrochemical,Architecture,Construction engineering
Avg patent value: 3,500
5
Tokheim Hengshan Technologies (Guangzhou) Co., Ltd.
China
Fuel dispenser,Automation,Manufacturing engineering,
...[+2]
Avg patent value: 3,400

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