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Top 10 Startups & Unicorns companies in NOx
by Most Patent Filings in the world in 2019

The NOx top 10 is Discovery PatSnap’ annual ranking of the top 10 Most Patent Filings NOx Startups & Unicorns in the world. 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.
In atmospheric chemistry, NO x is a generic term for the nitrogen oxides that are most relevant for air pollution, namely nitric oxide (NO) and nitrogen dioxide (NO 2 ). These gases contribute to the formation of smog and acid rain, as well as affecting tropospheric ozone.
Page generation time: Jun 20 2025