With the analysis among 38 patents, we discovered top 25 key players by total patent application. Shell Internationale Research Maatschappij BV, Air Products & Chemicals, Inc., Osaka Gas Co., Ltd. are dominant in this area. They take 13.16% of the total patent filing.
Zuid-Holland, Netherlands
Patent: 3
Pennsylvania, United States
Patent: 1
Texas, United States
Patent: 1
Illinois, United States
Patent: 1
Massachusetts, United States
Patent: 1
Colorado, United States
Patent: 1
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