Portfolio comparison
Zenith Radio Corp vs Elisha G. Otis
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 31128· 1861
How Elisha Otis Invented the Modern Safety Elevator
Activity by Decade
1860s1
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