Portfolio comparison
Ampex Corp vs LaMarcus A. Thompson
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Ampex Corp
Patents indexed
1
Year range
1960
Most recent
1960
consumer_electronicsmechanicaltelecommunications
Top Patents1 enriched
US 2956114· 1960
How Ampex Invented Modern Video Recording on Magnetic Tape
Activity by Decade
1960s1
Top Patents1 enriched
US 310966· 1885
Early Roller Coaster Design for Thrill Rides
Activity by Decade
1880s1
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