Portfolio comparison
Ampex Corp vs John Gorrie
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
Top Patents1 enriched
US 8080· 1851
John Gorrie's 1851 Patent for Artificial Ice Production
Activity by Decade
1850s1
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