Portfolio comparison
Ampex Corp vs NEC
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
Company B
NEC
Patents indexed
2
Year range
2015 – 2017
Most recent
2017
automotiveenergysoftwaretelecommunicationsconsumer_electronics
Top Patents2 enriched
US 9791514· 2017
Forecasting When Used Electric Car Batteries Will Be Available for Reuse
US 9168838· 2015
How an EV Charging Station Manages Power from Batteries and the Grid
Activity by Decade
2010s2
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