Portfolio comparison
Central Investment Corp vs Visa International Service Association
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Central Investment Corp
Patents indexed
1
Year range
1973
Most recent
1973
consumer_electronicsmechanical
Top Patents1 enriched
US 3735375· 1973
How Vacuum Tubes Detect Tiny Changes in High-Resistance Sensors
Activity by Decade
1970s1
Company B
Visa International Service Association
Patents indexed
1
Year range
2018
Most recent
2018
financeecommercetelecommunications
Top Patents1 enriched
US 10163106· 2018
How Visa Processes Targeted Discounts on Specific Items During Checkout
Activity by Decade
2010s1
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