With the analysis among 77 patents, we discovered top 22 key players by total patent application. MacFarlan Smith Ltd., Euro-Celtique SA, Johnson Matthey Plc are dominant in this area. They take 49.35% of the total patent filing.
EDINBURGH, United Kingdom
Patent: 16
Luxembourg, Luxembourg
Patent: 12
Cheshire West and Chester, United Kingdom
Patent: 3
New Jersey, United States
Patent: 2
Connecticut, United States
Patent: 2
Indiana, United States
Patent: 2
Noord-Holland, Netherlands
Patent: 1
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