With the analysis among 46 patents, we discovered top 29 key players by total patent application. Industrie De Nora SpA, Norsk Hydro ASA, China Aluminum International Engineering Corp. Ltd. are dominant in this area. They take 17.39% of the total patent filing.
Lombardia, Italy
Patent: 4
Beijing Shi, China
Patent: 2
New York, United States
Patent: 2
Arizona, United States
Patent: 1
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With the analysis among related 2 patents applied in the last 5 years. We discover 1 most active companies in this area.
New York, United States
Patent: 1
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