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Top 100 Key Players companies in Bunker
by Most Patent Filings in the world in 2021

The Bunker top 100 is Discovery PatSnap’ annual ranking of the top 100 Most Patent Filings Bunker Key Players 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.
A bunker is a defensive military fortification designed to protect people and valued materials from falling bombs or other attacks. Bunkers are mostly underground, in contrast to blockhouses which are mostly above ground. They were used extensively in World War I, World War II, and the Cold War for weapons facilities, command and control centers, and storage facilities. Bunkers can also be used as protection from tornadoes.

Key Players

Fast-growings

Startups & Unicorns

New Entrants

Ranking Year:

2022

2021

2020

2019

2018

Region:

Global

China

Japan

Germany

United Kingdom

South Korea

Canada

United States

Austria

Italy

France

Switzerland

Netherlands

Ranking:

Most Patent Filings

Highest Patent Value

Most Patent Citation

Most Research Publications

Most Literature Citation

Most Market Reports

Most News Heat

#
Company Name
Region
Tech Topics
Total
1
Mitsubishi Kogyo KK
Japan
Patent: 13
2
IHI Power Systems Co., Ltd.
Tokyo, Japan
Turbine,Gas engine,Manufacturing engineering,
...[+2]
Patent: 11
3
Krones AG
Bayern, Germany
Food processing,Food industry,Winemaking,
...[+2]
Patent: 9
4
Coal Industry (Patents) Ltd.
United Kingdom
Patent: 9
5
JFE Holdings, Inc.
Tokyo, Japan
Materials science,Product design,Carbon steel,
...[+2]
Patent: 8
6
JFE Steel Corp.
Tokyo, Japan
Irone,Mining engineering,Natural resource management,
...[+2]
Patent: 8
7
Schwabische Huttenwerke GmbH
DE
Automotive engineering
Patent: 8
8
Dieffenbacher GmbH & Co. KG
Baden-Württemberg, Germany
Fiber,Composite material,Thermoplastic,
...[+2]
Patent: 7
9
Claudius Peters Projects GmbH
Germany
Construction engineering
Patent: 7
10
POSCO
South Korea
Materials science,Mining engineering,Metal,
...[+2]
Patent: 6
11
MT-Energie GmbH
Germany
Petroleum industry
Patent: 6
12
Kawasaki Steel Corp.
Japan
Patent: 6
13
Fried. Krupp GmbH
Nordrhein-Westfalen, Germany
Mechanical engineering,Construction engineering
Patent: 6
14
Kawasaki Steel
Patent: 6
15
Siemens AG
Bayern, Germany
Power transmission,Electronics,Turbine,
...[+2]
Patent: 5
16
Steel Authority of India Ltd.
Delhi, India
Public sector,Industrial engineering,Ferroalloy,
...[+2]
Patent: 5
17
Bharat Heavy Electricals Ltd.
Delhi, India
Transformer,Enterprise software,Heat exchanger,
...[+2]
Patent: 5
18
Diehl Stiftung & Co. KG
Germany
Metal,Automation,Mechanical engineering,
...[+2]
Patent: 5
19
Paul Wurth SA
Luxembourg, Luxembourg
Software,Metal,Construction engineering
Patent: 5
20
Siemens SA
Madrid, Spain
Scientific Control,Telecommunications,Turbine,
...[+1]
Patent: 5
21
Guiyang Aluminium Magnesium Design & Research Inst. Co. Ltd.
Guizhou Sheng, China
Aluminium,Construction engineering
Patent: 5
22
Ambienteco Group Ltd.
Ontario, Canada
Patent: 5
23
The Chugoku Electric Power Co., Inc.
Hiroshima, Japan
Renewable energy,Petroleum industry,Electric power transmission,
...[+2]
Patent: 4
24
China Shenhua Energy Co., Ltd.
Beijing Shi, China
Coal,Coal mining,Electricity,
...[+2]
Patent: 4
25
Mitsubishi Power Ltd.
Kanagawa, Japan
Turbine,Control system,Renewable energy,
...[+2]
Patent: 4
26
MTD Products, Inc.
Ohio, United States
Robotic lawn mower,Mower,Product design,
...[+2]
Patent: 4
27
Sumitomo Metal Industries Ltd.
Osaka, Japan
Metal,Semiconductor,Casting,
...[+2]
Patent: 4
28
Carl Schenck AG
Hessen, Germany
Diagnostic system,Automation
Patent: 4
29
Schneider Electric Systems USA, Inc.
Massachusetts, United States
Software,Automation,Software as a service,
...[+2]
Patent: 4
30
Babcock International Ltd.
United Kingdom
Work-based learning,National security,Mechanical engineering,
...[+2]
Patent: 4
31
MTD Products AG
Saarland, Germany
Mechanical engineering,Manufacturing engineering
Patent: 4
32
Huainan Mining (Group) Co., Ltd.
Anhui Sheng, China
Coal,Mining engineering,Natural resource management,
...[+2]
Patent: 4
33
ASFC SGPS SA
Porto, Portugal
Containerization,Environmental consulting
Patent: 4
34
BRUDER Spielwaren GmbH + Co. KG
Bayern, Germany
Computer Applications,Injection moulding,Workstation
Patent: 4
35
Joseph Vögele AG
Germany
Aggregate base,Automation,Manufacturing engineering,
...[+2]
Patent: 4
36
PASSAVANT-Werke AG
HE, DE
Patent: 4
37
TWG Young Ltd.
Edinburgh, United Kingdom
Liquid gas,Construction engineering
Patent: 4
38
Huaibei Mining Co., Ltd.
Anhui Sheng, China
Coal mining,Mining engineering,Natural resource management
Patent: 4
39
BASF SE
Rheinland-Pfalz, Germany
Agriculture,Petrochemical,Chemical engineering,
...[+2]
Patent: 3
40
Kawasaki Heavy Industries Ltd.
Kyoto, Japan
Turbine,Mechanical engineering,Manufacturing engineering,
...[+2]
Patent: 3
41
China Petroleum & Chemical Corp.
Beijing Shi, China
Petrochemical,Petroleum,Enterprise software,
...[+2]
Patent: 3
42
Hitachi Zosen Corp.
Osaka, Japan
Mechanical engineering,Waste-to-energy,Environmental protection,
...[+2]
Patent: 3
43
Raytheon Co.
Massachusetts, United States
Missile,National security,Aerospace,
...[+2]
Patent: 3
44
SK Innovation Co., Ltd.
Seoul, South Korea
Lithium-ion battery,Petroleum,Petroleum industry,
...[+2]
Patent: 3
45
State Grid Corp. of China
Beijing Shi, China
Electric vehicle,Power grid,Total asset,
...[+2]
Patent: 3
46
Shandong Iron & Steel Co., Ltd.
Shandong Sheng, China
Smelting,Ferroalloy,Precious metal,
...[+2]
Patent: 3
47
Waagner-Biro AG
Austria
Architecture
Patent: 3
48
Logistik Unicorp, Inc.
Quebec, Canada
Management information systems,Length overall,Poly(p-phenylene oxide),
...[+2]
Patent: 3
49
Jinan Iron & Steel Co. Ltd.
Shandong Sheng, China
Sintering,Raw material,Metal,
...[+2]
Patent: 3
50
Jinneng Holding Equipment Manufacturing Group Co. Ltd.
Shanxi Sheng, China
Coal,Anthracite,Coal mining,
...[+2]
Patent: 3
51
SK Energy Co., Ltd.
South Korea
Petroleum,Petroleum industry,Kerosene,
...[+2]
Patent: 3
52
UTI Corp.
Pennsylvania, United States
Electronics,Health care,Metal
Patent: 3
53
Standard Alcohol Co. of America
Colorado, United States
Patent: 3
54
Magaldi Ricerche e Brevetti Srl
CITY OF ROME, Italy
Natural science,Fishery,Biology,
...[+2]
Patent: 3
55
Seoul Sharp Heavy Industries Co. Ltd.
South Korea
Automation,Mechanical engineering,Manufacturing engineering,
...[+1]
Patent: 3
56
O & K Orenstein & Koppel AG
Hamburg, Germany
Manufacturing engineering,Mechanical engineering,Surface mining,
...[+2]
Patent: 3
57
VEAG Vereinigte Energiewerke AG
Berlin, Germany
Power transmission,Electric power transmission
Patent: 3
58
Exxon Research & Engineering Co.
United States
Patent: 3
59
China Huaye Science & Technology Group Co., Ltd.
Beijing Shi, China
Patent: 3
60
General Electric Co.
Massachusetts, United States
Energy management,Turbine,Electronics,
...[+2]
Patent: 2
61
Procter & Gamble Co.
Ohio, United States
Toothpaste,Hair conditioner,SOAP,
...[+2]
Patent: 2
62
Airbus SE
Midi-Pyrénées, France
Aerospace,National security,Spacecraft,
...[+2]
Patent: 2
63
Kubota Corp.
Osaka, Japan
Tractor,Manufacturing engineering,Combine harvester,
...[+2]
Patent: 2
64
Rheinmetall AG
Nordrhein-Westfalen, Germany
Aerospace,Missile,Directed-energy weapon,
...[+2]
Patent: 2
65
FLSmidth & Co. A/S
Hovedstaden, Denmark
Cement,Construction engineering,Air pollution,
...[+2]
Patent: 2
66
Mitsui E&S Holdings Co., Ltd.
Tokyo, Japan
Public transport,Hydrogen compressor,Reciprocating compressor,
...[+2]
Patent: 2
67
Xinxing Ductile Iron Pipes Co., Ltd.
Hebei Sheng, China
Ductile iron,Ductile iron pipe,Cast iron,
...[+2]
Patent: 2
68
Stella-Jones, Inc.
Quebec, Canada
Utility pole,Fixture,Green wood,
...[+2]
Patent: 2
69
COFCO Corp.
Beijing Shi, China
Agriculture,Food processing,Food industry,
...[+2]
Patent: 2
70
CITIC Heavy Industries Co., Ltd.
Guangdong Sheng, China
Dual-phase steel,Mining engineering,Ball mill,
...[+2]
Patent: 2
71
Chisso Corp.
Tokyo, Japan
Petrochemical,Liquid crystal,Chemical engineering,
...[+2]
Patent: 2
72
YanTai LongYuan Power Technology Co., Ltd.
Shandong Sheng, China
Heat exchanger,Electronics,NOx,
...[+2]
Patent: 2
73
BOMAG GmbH
Rheinland-Pfalz, Germany
Compaction,Heavy equipment,Electronics,
...[+2]
Patent: 2
74
Datang Environment Industry Group Co., Ltd.
Beijing Shi, China
Energy conservation,Environmental protection,Denitrification,
...[+2]
Patent: 2
75
Thyssen Industrie AG
Nordrhein-Westfalen, Germany
Decision-making
Patent: 2
76
Continental Commercial Products LLC
Missouri, United States
Food service,Fast-moving consumer goods,Health care
Patent: 2
77
Shandong Energy Group Co., Ltd.
Shandong Sheng, China
Coal,Mining engineering,Natural resource management,
...[+2]
Patent: 2
78
thyssenkrupp Industrial Solutions AG
Wisconsin, United States
Industrial engineering,Mechanical engineering,Value added,
...[+2]
Patent: 2
79
Triton Emission Solutions, Inc.
NA - Puerto Rico, Puerto Rico
Market research,Alkali metal,Exhaust gas,
...[+2]
Patent: 2
80
thyssenkrupp Steel Europe AG
Nordrhein-Westfalen, Germany
Carbon steel,Ferroalloy,Mining engineering,
...[+2]
Patent: 2
81
Rohr, Inc.
California, United States
Aerospace,Nacelle,National security
Patent: 2
82
Messerschmitt-Boelkow-Blohm GmbH
Germany
Aerospace,National security
Patent: 2
83
Yongcheng Coal & Electricity Holding (Group) Co., Ltd.
Henan Sheng, China
Coal,Mining engineering,Natural resource management,
...[+1]
Patent: 2
84
NIPPON STEEL Stainless Steel Corp.
Tokyo, Japan
Mill,Metal,Mining engineering,
...[+1]
Patent: 2
85
SRI Sports Ltd.
Hyogo, Japan
sports equipment,Ammunition,Exercise equipment,
...[+1]
Patent: 2
86
Westeria Fördertechnik GmbH
Nordrhein-Westfalen, Germany
Automation,Manufacturing engineering,Industrial engineering,
...[+2]
Patent: 2
87
Cold Chain LLC
Idaho, United States
Food processing
Patent: 2
88
GIAT Industries SASU
Île-de-France, France
Weapon system,Industrial engineering
Patent: 2
89
L. & C. Steinmueller GmbH
Germany
Refrigeration
Patent: 2
90
Demag Cranes & Components GmbH /Old/
Nordrhein-Westfalen, Germany
Spare part,Manufacturing engineering,Mechanical engineering
Patent: 2
91
Maihak AG
HA, DE
Process control,Computer hardware,Electronics,
...[+1]
Patent: 2
92
Baosteel Group Xinjiang Bayi Iron & Steel Co., Ltd.
Xinjiang Uygur, China
Steelmaking,Hot rolled,Mining engineering,
...[+2]
Patent: 2
93
China Coal Pingshuo Group Co., Ltd.
Shanxi Sheng, China
Coal mining,Mining engineering,Natural resource management,
...[+1]
Patent: 2
94
Airbus Operations Ltd.
Bristol, United Kingdom
Aerospace,Spacecraft,National security,
...[+1]
Patent: 2
95
Sogeval SA
Pays de la Loire, France
Patent: 2
96
Airbus Operations SAS
New Mexico, France
Human resources
Patent: 2
97
Shenzhen Mawan Power Co., Ltd.
Guangdong Sheng, China
Power transmission
Patent: 2
98
Wuhuan Engineering Co. Ltd.
Hubei Sheng, China
Chemical industry,Construction engineering,Fertilizer,
...[+2]
Patent: 2
99
Huadian Electric Power Research Institute Co., Ltd.
Zhejiang Sheng, China
Hydropower,Energy technology
Patent: 2
100
HNE Technologie AG
Germany
Special forces,Fire extinguisher,High pressure
Patent: 2

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