Portfolio comparison
International Standard Electric Corp vs Zenith Radio Corp
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
International Standard Electric Corp
Patents indexed
2
Year range
1941 – 1949
Most recent
1949
telecommunicationssemiconductorsenergymechanical
Top Patents2 enriched
US 2266401· 1941
How Pulse Code Modulation Digitizes Analog Signals
US 2485586· 1949
How the Geiger Counter Detects Invisible Radiation
Activity by Decade
1940s2
Company B
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
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