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Top 10 Key Players companies in Expansive
by Most Literature Citation in the world in 2020

The Expansive top 10 is Discovery PatSnap’ annual ranking of the top 10 Most Literature Citation Expansive Key Players in the world. 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.
In mathematics, the notion of expansivity formalizes the notion of points moving away from one another under the action of an iterated function. The idea of expansivity is fairly rigid, as the definition of positive expansivity, below, as well as the Schwarz-Ahlfors-Pick theorem demonstrate.
#
Company Name
Region
Tech Topics
Total
1
Health care,Mitral valve surgery,Health equity,
...[+2]
Literature citation: 327
2
Victoria, Australia
Market research,Phosphatase,Kinase,
...[+2]
Literature citation: 124
3
Albert Einstein Medical Center
Literature citation: 111
4
Ontario, Canada
Health care,Hospitality industry,Resident physician,
...[+2]
Literature citation: 80
5
Human services,Health care,Well-being,
...[+2]
Literature citation: 78
6
United States Department of The Army
Literature citation: 45
7
Aalborg University Hospital
Denmark
Social science,Public university,Neurotechnology,
...[+2]
Literature citation: 40
8
Ontario, Canada
Health care,Neurological disorder,Cancer,
...[+2]
Literature citation: 18
9
Korea Institute of Civil Engineering and Building Technology
Gyeonggi-do, South Korea
Literature citation: 11
10
Public opinion,Health care,Chemistry,
...[+2]
Literature citation: 8
Page generation time: Aug 11 2025