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Top 50 Key Players companies in Diesel exhaust fluid
by Most Patent Citation in the world in 2019

The Diesel exhaust fluid top 50 is Discovery PatSnap’ annual ranking of the top 50 Most Patent Citation 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.
#
Company Name
Region
Tech Topics
Total
1
Caterpillar, Inc.
Turbine,Construction engineering,Mechanical engineering,
...[+2]
patent citation: 92
2
G.M. Srl
Vicenza, Italy
Chemical engineering
patent citation: 57
3
Cummins Filtration, Inc.
Filtration,Computer hardware,Electronics,
...[+2]
patent citation: 40
4
Robert Bosch GmbH
Automotive engineering,Mechanical engineering,Electronics,
...[+2]
patent citation: 38
5
Robert Bosch Corp.
Shopping mall,Truck
patent citation: 38
6
SSI Technologies LLC
Automation,3D printing,Electronics,
...[+2]
patent citation: 36
7
SSI Technology, Inc.
patent citation: 36
8
Cummins Intellectual Property, Inc.
Mechanical engineering,Manufacturing engineering,Internal combustion engine,
...[+1]
patent citation: 36
9
Southern Pump & Tank Co. LLC
Hydraulic pump,Solar energy,Renewable energy,
...[+2]
patent citation: 28
10
BPC Acquisition Co.
patent citation: 23
11
PACCAR, Inc.
Truck,Automotive engineering,Public transport,
...[+2]
patent citation: 22
12
Stant USA Corp.
Thermostat,Control valves,Management system
patent citation: 19
13
Cummins Emission Solutions, Inc.
Maharashtra, India
Automotive catalyst,Cisco Catalyst
patent citation: 19
14
Daimler Trucks North America LLC
Truck,Diesel engine,Public transport,
...[+2]
patent citation: 16
15
Detroit Diesel Corp.
Diesel engine,Turbocharger,Truck,
...[+2]
patent citation: 15
16
Perkins Engines Co. Ltd.
United Kingdom
Diesel engine,Electricity,Gasoline,
...[+2]
patent citation: 15
17
Illinois Tool Works, Inc.
Adhesive,Consumables,Industrial engineering,
...[+2]
patent citation: 14
18
Cummins, Inc.
Electric vehicle,Natural gas,Petroleum industry,
...[+2]
patent citation: 14
19
Ford Motor Co. A/S
Denmark
patent citation: 12
20
Blue Leaf I.P., Inc.
Special purpose entity
patent citation: 10
21
BorgWarner, Inc.
Electric vehicle,Automotive engineering,Gasoline,
...[+2]
patent citation: 9
22
Umicore
Brussels Hoofdstedelijk Gewest, Belgium
Zinc,Precious metal,Catalysis,
...[+2]
patent citation: 8
23
Volvo Lastvagnar AB
Sweden
Automotive engineering
patent citation: 8
24
Cummins Cal Pacific LLC
patent citation: 7
25
Stamicarbon BV
Netherlands
Stamicarbon,Chemical engineering,Fertilizer,
...[+1]
patent citation: 6
26
Merck & Co., Inc.
Health care,Biopharmaceutical,Drug,
...[+2]
patent citation: 5
27
Merck Sharp & Dohme Corp.
Prescription drug,Medicine,Stroke,
...[+2]
patent citation: 5
28
Mercedes-Benz Group AG
Automotive engineering,Electric vehicle,Hybrid vehicle,
...[+2]
patent citation: 4
29
Daimier AG
Truck,Chassis
patent citation: 4
30
International Engine Intellectual Property Co. LLC
Intellectual property,Automotive engineering
patent citation: 4
31
Elkhart Plastics, Inc.
Material selection,Pallet
patent citation: 3
32
TLX Technologies LLC
Chassis,Solenoid,Automation,
...[+2]
patent citation: 3
33
Continental Automotive Systems, Inc.
Automotive engineering,New Car Assessment Program,Automotive systems,
...[+2]
patent citation: 3
34
Dayco IP Holdings LLC
patent citation: 3
35
Cummins Power Generation, Inc.
Electrical equipment,Renewable energy,Electricity,
...[+2]
patent citation: 2
36
ThyssenKrupp AG
Elevator,Metal,Industrial engineering,
...[+2]
patent citation: 1
37
Hyundai Motor Co., Ltd.
South Korea
Public transport,Automotive engineering,Truck,
...[+2]
patent citation: 1
38
Kia Corp.
South Korea
Customer expectation,Automotive engineering,Public transport,
...[+2]
patent citation: 1
39
Brenntag UK Ltd.
United Kingdom
patent citation: 1
40
Thyssenkrupp GmbH
Metal
patent citation: 1
41
Caterpillar Paving Products, Inc.
Surface mining,Tractor,Truck,
...[+1]
patent citation: 1
42
Cummins PowerGen IP, Inc.
Internal combustion engine,Mechanical engineering,Manufacturing engineering
patent citation: 1
43
thyssenkrupp Fertilizer Technology GmbH
patent citation: 1
44
Donaldson Co., Inc.
Filtration,Filter (aquarium),Industrial engineering,
...[+2]
patent citation: 0
45
China Petroleum & Chemical Corp.
Petrochemical,Petroleum,Enterprise software,
...[+2]
patent citation: 0
46
Oshkosh Corp.
Emergency vehicle,Unmanned spacecraft,Aerial work platform,
...[+2]
patent citation: 0
47
Dinex A/S
Syddanmark, Denmark
Gas engine,Diesel particulate filter,Exhaust manifold,
...[+2]
patent citation: 0
48
Mayville Engineering Co., Inc.
Sheet metal,Product design,Industrial engineering,
...[+2]
patent citation: 0
49
Toyota Motor Europe NV/SA
Brussels Hoofdstedelijk Gewest, Belgium
Hydrogen,Advertising,Gasoline
patent citation: 0
50
Afton Chemical Corp.
Diesel engine,Petrochemical,Chemical engineering,
...[+2]
patent citation: 0
Page generation time: May 11 2025