Ranking Year:
# | Company Name | Region | Tech Topics | Total |
|---|
1 | Patent: 2 | |||
2 | Patent: 1 | |||
3 | Patent: 1 | |||
4 | Patent: 1 | |||
5 | Patent: 1 | |||
6 | Patent: 1 | |||
7 | Patent: 1 | |||
8 | Patent: 1 | |||
9 | Patent: 1 | |||
10 | Patent: 1 |
Top 10 Key Players companies in Am star
by Most Patent Filings in the China in 2019
The Am star top 10 is Discovery PatSnap’ annual ranking of the top 10 Most Patent Filings Am star Key Players in the China. 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".
Page generation time:
Jul 19 2025