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Top 10 Key Players companies in Am star
by Most Patent Filings in the Germany in 2020

The Am star top 10 is Discovery PatSnap’ annual ranking of the top 10 Most Patent Filings Am star Key Players in the Germany. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2020, 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
Siemens AG
Power transmission,Electronics,Turbine,
...[+2]
Patent: 13
2
GOSSEN METRAWATT GmbH
Multimeter,Transducer,Energy management,
...[+2]
Patent: 4
3
Messer Group GmbH
Industrial gas,Nitrogen,Argon,
...[+2]
Patent: 2
4
Licentia Patent Verwaltungs GmbH
Patent: 2
5
BASF SE
Agriculture,Petrochemical,Chemical engineering,
...[+2]
Patent: 1
6
Mercedes-Benz Group AG
Automotive engineering,Electric vehicle,Hybrid vehicle,
...[+2]
Patent: 1
7
MANN+HUMMEL GmbH
Filter (aquarium),Automotive engineering,Refrigeration,
...[+2]
Patent: 1
8
Stiebel Eltron GmbH & Co. KG
Heat pump,Storage heater,Automation,
...[+2]
Patent: 1
9
Hoechst AG
Chemical engineering,Botanical drug,Herb,
...[+2]
Patent: 1
10
Merz Pharma GmbH & Co. KGaA
Psychiatry,Neurology,Breast implant,
...[+2]
Patent: 1
Page generation time: Jul 19 2025