With the analysis among 82 patents, we discovered top 20 key players by total patent application. Cantaloupe, Inc., QUALCOMM, Inc., International Business Machines Corp. are dominant in this area. They take 57.32% of the total patent filing.
Pennsylvania, United States
Patent: 28
California, United States
Patent: 13
New York, United States
Patent: 6
California, United States
Patent: 3
Pennsylvania, United States
Patent: 2
California, United States
Patent: 1
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