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Top 5 Key Players companies in Am star
by Highest Patent Value in the United States in 2019

The Am star top 5 is Discovery PatSnap’ annual ranking of the top 5 Highest Patent Value Am star Key Players in the United States. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2019, 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
Avg patent value: 980,000
2
Avg patent value: 94,000
3
Leisure satisfaction
Avg patent value: 40,000
4
Toothpaste,Dental floss,Fast-moving consumer goods,
...[+2]
Avg patent value: 15,000
5
Cardiovascular agent,Drug marketing,Asset management
Avg patent value: 15,000
Page generation time: Jul 19 2025