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Top 20 Key Players companies in Diesel exhaust fluid
by Most Patent Citation in the United States in 2018

The Diesel exhaust fluid top 20 is Discovery PatSnap’ annual ranking of the top 20 Most Patent Citation Diesel exhaust fluid Key Players in the United States. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2018, 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
Cummins Filtration, Inc.
Filtration,Computer hardware,Electronics,
...[+2]
patent citation: 40
3
Robert Bosch Corp.
Shopping mall,Truck
patent citation: 38
4
SSI Technologies LLC
Automation,3D printing,Electronics,
...[+2]
patent citation: 36
5
SSI Technology, Inc.
patent citation: 36
6
Cummins Intellectual Property, Inc.
Mechanical engineering,Manufacturing engineering,Internal combustion engine,
...[+1]
patent citation: 36
7
Southern Pump & Tank Co. LLC
Hydraulic pump,Solar energy,Renewable energy,
...[+2]
patent citation: 28
8
BPC Acquisition Co.
patent citation: 23
9
PACCAR, Inc.
Truck,Automotive engineering,Public transport,
...[+2]
patent citation: 22
10
Stant USA Corp.
Thermostat,Control valves,Management system
patent citation: 19
11
Daimler Trucks North America LLC
Truck,Diesel engine,Public transport,
...[+2]
patent citation: 16
12
Detroit Diesel Corp.
Diesel engine,Turbocharger,Truck,
...[+2]
patent citation: 15
13
Illinois Tool Works, Inc.
Adhesive,Consumables,Industrial engineering,
...[+2]
patent citation: 14
14
Cummins, Inc.
Electric vehicle,Natural gas,Petroleum industry,
...[+2]
patent citation: 14
15
Blue Leaf I.P., Inc.
Special purpose entity
patent citation: 10
16
BorgWarner, Inc.
Electric vehicle,Automotive engineering,Gasoline,
...[+2]
patent citation: 9
17
Cummins Cal Pacific LLC
patent citation: 7
18
Merck & Co., Inc.
Health care,Biopharmaceutical,Drug,
...[+2]
patent citation: 5
19
Merck Sharp & Dohme Corp.
Prescription drug,Medicine,Stroke,
...[+2]
patent citation: 5
20
International Engine Intellectual Property Co. LLC
Intellectual property,Automotive engineering
patent citation: 4
Page generation time: May 12 2025