Portfolio comparison
Zenith Radio Corp vs John Gorrie
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Zenith Radio Corp
Patents indexed
1
Year range
1957
Most recent
1957
consumer_electronicsmechanical
Top Patents1 enriched
US 2817025· 1957
How the First Wireless Television Remote Control Works
Activity by Decade
1950s1
Top Patents1 enriched
US 8080· 1851
John Gorrie's 1851 Patent for Artificial Ice Production
Activity by Decade
1850s1
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