Portfolio comparison
George B. Selden vs RCA Corp
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 549160· 1895
George Selden's 1895 Patent for a Road Engine
Activity by Decade
1890s1
Company B
RCA Corp
Patents indexed
2
Year range
1967 – 1977
Most recent
1977
consumer_electronicssemiconductorsmaterialsenergy
Top Patents2 enriched
US 3322485· 1967
How Liquid Crystal Displays (LCDs) Were Invented
US 4064521· 1977
How Amorphous Silicon Changed Solar Power
Activity by Decade
1960s1
1970s1
How to use
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