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Top 20 New Entrants companies in Diesel exhaust fluid
by Most Patent Filing In 5 Years in the world in 2021

The Diesel exhaust fluid top 20 is Discovery PatSnap’ annual ranking of the top 20 Most Patent Filing In 5 Years Diesel exhaust fluid New Entrants in the world. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2021, 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
Thyssenkrupp GmbH
Germany
Metal
Patent: 14
2
ThyssenKrupp AG
Nordrhein-Westfalen, Germany
Elevator,Metal,Industrial engineering,
...[+2]
Patent: 14
3
thyssenkrupp Fertilizer Technology GmbH
Germany
Patent: 13
4
Delphi Technologies IP Ltd.
Barbados
Patent: 6
5
International Engine Intellectual Property Co. LLC
Intellectual property,Automotive engineering
Patent: 4
6
Multiquip, Inc.
Tower,Cutting,Forestry,
...[+2]
Patent: 4
7
BorgWarner, Inc.
Electric vehicle,Automotive engineering,Gasoline,
...[+2]
Patent: 3
8
Cummins Power Generation Ltd.
United Kingdom
Electronics
Patent: 2
9
Delphi France SAS
Île-de-France, France
Automotive engineering,Regional development,Nanotechnology,
...[+1]
Patent: 2
10
Brenntag UK Ltd.
United Kingdom
Patent: 2
11
Tenneco Automotive Operating Co., Inc.
Steering system,Mechanical engineering,Cutlery,
...[+1]
Patent: 2
12
Dinex A/S
Syddanmark, Denmark
Gas engine,Diesel particulate filter,Exhaust manifold,
...[+2]
Patent: 2
13
Robert Bosch Engineering & Business Solutions Pvt Ltd.
Karnataka, India
Software,Robotics,Software development
Patent: 1
14
TE Connectivity Norge AS
Hordaland, Norway
Fuel tank,Computer hardware,Electronics,
...[+2]
Patent: 1
15
Donaldson Co., Inc.
Filtration,Filter (aquarium),Industrial engineering,
...[+2]
Patent: 1
16
Clark Equipment Co.
Tractor,Truck,Manufacturing engineering,
...[+2]
Patent: 1
17
Lund, Inc.
Truck,Automotive engineering
Patent: 1
18
Cummins Ltd.
United Kingdom
Diesel engine,Manufacturing engineering,Mechanical engineering,
...[+2]
Patent: 1
19
United States Council for Automotive Research LLC
Automotive industry,Lithium battery,Battery recycling,
...[+2]
Patent: 1
20
Ramfoam Ltd.
Nordrhein-Westfalen, Germany
Patent: 1
Page generation time: Jun 26 2025