Portfolio comparison
Ampex Corp vs PayPal Inc
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Ampex Corp
Patents indexed
1
Year range
1960
Most recent
1960
consumer_electronicsmechanicaltelecommunications
Top Patents1 enriched
US 2956114· 1960
How Ampex Invented Modern Video Recording on Magnetic Tape
Activity by Decade
1960s1
Company B
PayPal Inc
Patents indexed
2
Year range
2017 – 2018
Most recent
2018
ecommercesoftwareconsumer_electronicsfintechtelecommunications
Top Patents2 enriched
US 9792375· 2017
How Websites Can Sell Items from Other Sites Without Redirecting Users
US 10152712· 2018
How to Aggregate Transaction Notifications Using Secure Tokens
Activity by Decade
2010s2
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