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Top 50 Key Players companies in Am star
by Most Patent Filings in the world in 2022

The Am star top 50 is Discovery PatSnap’ annual ranking of the top 50 Most Patent Filings Am star Key Players in the world. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2022, ranking from differnt perspectives, including patent filing intensity, academic research capability, news media heat. The company list is generated from various data types.
An Am star or metallic-line star is a type of chemically peculiar star of spectral type A whose spectrum has strong and often variable absorption lines of metals such as zinc, strontium, zirconium, and barium, and deficiencies of others, such as calcium and scandium. The original definition of an Am star was one in which the star shows "an apparent surface underabundance of Ca (and/or Sc) and/or an apparent overabundance of the Fe group and heavier elements".
#
Company Name
Region
Tech Topics
Total
1
Patent: 13
2
Madrid, Spain
Patent: 13
3
Patent: 4
4
Patent: 4
5
Île-de-France, France
Patent: 4
6
AT
Patent: 4
7
DE
Patent: 4
8
Patent: 3
9
Patent: 3
10
Patent: 3
11
Patent: 3
12
Switzerland
Patent: 3
13
Patent: 2
14
ZURICH, Switzerland
Patent: 2
15
Patent: 2
16
Toothpaste,Dental floss,Fast-moving consumer goods,
...[+2]
Patent: 2
17
Microscope,Photography,Motion capture,
...[+2]
Patent: 2
18
Patent: 2
19
Electric vehicle,Power grid,Total asset,
...[+2]
Patent: 2
20
United Kingdom
Patent: 2
21
Patent: 2
22
Cardiovascular agent,Drug marketing,Asset management
Patent: 2
23
Patent: 2
24
Denmark
Patent: 2
25
Patent: 2
26
IA, US
Patent: 2
27
Patent: 1
28
Patent: 1
29
Patent: 1
30
Patent: 1
31
Digital media,Data visualization,Thermal paper,
...[+2]
Patent: 1
32
South Korea
Patent: 1
33
Fiber,Textile,Textile (markup language),
...[+2]
Patent: 1
34
Electronics,Publishing,Publication,
...[+2]
Patent: 1
35
Patent: 1
36
Civil engineering,Construction engineering,Real estate development,
...[+2]
Patent: 1
37
Patent: 1
38
Patent: 1
39
South Korea
Customer expectation,Automotive engineering,Public transport,
...[+2]
Patent: 1
40
Patent: 1
41
Patent: 1
42
Patent: 1
43
Patent: 1
44
Patent: 1
45
Schaan, Liechtenstein
Patent: 1
46
Patent: 1
47
Patent: 1
48
Patent: 1
49
Patent: 1
50
Patent: 1
Page generation time: Jul 19 2025