Portfolio comparison
Zenith Radio Corp vs Electrolux Servel Corp
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 1781541· 1930
How Albert Einstein and Leo Szilard Designed a Silent Refrigerator
Activity by Decade
1930s1
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