With the analysis among 120 patents, we discovered top 41 key players by total patent application. LINDA AG, L'Air Liquide SA, Shell Internationale Research Maatschappij BV are dominant in this area. They take 39.17% of the total patent filing.
Nordrhein-Westfalen, Germany
Patent: 33
Shell Internationale Research Maatschappij BV
Zuid-Holland, Netherlands
Patent: 6
Energy Capital Management AS
Western Digital Technologies, Inc.
California, United States
Patent: 4
Société Chimique De La Grande Paroisse
International Standard Electric Corp.
New York, United States
Patent: 3
ZURICH, Switzerland
Patent: 2
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