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Top 50 Key Players companies in Diesel exhaust fluid
by Highest Patent Value in the world in 2019

The Diesel exhaust fluid top 50 is Discovery PatSnap’ annual ranking of the top 50 Highest Patent Value Diesel exhaust fluid Key Players in the world. 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.
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Company Name
Region
Tech Topics
Total
1
Brussels Hoofdstedelijk Gewest, Belgium
Avg patent value: 3.58 M
2
Avg patent value: 2.92 M
3
Avg patent value: 2.92 M
4
Chassis,Solenoid,Automation,
...[+2]
Avg patent value: 1.91 M
5
Avg patent value: 1.91 M
6
Avg patent value: 1.86 M
7
Avg patent value: 1.86 M
8
Avg patent value: 1.86 M
9
Avg patent value: 1.69 M
10
Avg patent value: 1.69 M
11
Netherlands
Stamicarbon,Chemical engineering,Fertilizer,
...[+1]
Avg patent value: 1.02 M
12
Automotive engineering,New Car Assessment Program,Automotive systems,
...[+2]
Avg patent value: 1.02 M
13
Maharashtra, India
Automotive catalyst,Cisco Catalyst
Avg patent value: 862,925
14
Avg patent value: 784,000
15
Belgium
Avg patent value: 670,000
16
Special purpose entity
Avg patent value: 615,625
17
Avg patent value: 570,000
18
Health care,Biopharmaceutical,Drug,
...[+2]
Avg patent value: 430,000
19
Avg patent value: 430,000
20
United Kingdom
Avg patent value: 425,722
21
Vicenza, Italy
Avg patent value: 362,652
22
Avg patent value: 330,166
23
Avg patent value: 301,166
24
Avg patent value: 300,000
25
Avg patent value: 296,800
26
Avg patent value: 258,291
27
Shopping mall,Truck
Avg patent value: 258,291
28
Denmark
Avg patent value: 232,528
29
Avg patent value: 190,000
30
Avg patent value: 160,000
31
Avg patent value: 160,000
32
Avg patent value: 140,000
33
Avg patent value: 135,000
34
Avg patent value: 110,000
35
Avg patent value: 102,565
36
Avg patent value: 90,000
37
BeneCor, Inc.
Avg patent value: 68,000
38
Avg patent value: 66,000
39
Avg patent value: 61,500
40
Avg patent value: 60,000
41
Avg patent value: 56,000
42
Avg patent value: 56,000
43
Avg patent value: 48,000
44
Avg patent value: 39,000
45
Avg patent value: 38,000
46
Syddanmark, Denmark
Avg patent value: 30,000
47
Fast-moving consumer goods,Fuel filter,Funnel,
...[+1]
Avg patent value: 28,000
48
Barbados
Avg patent value: 27,200
49
Île-de-France, France
Avg patent value: 25,000
50
South Korea
Avg patent value: 22,600
Page generation time: May 11 2025