Portfolio comparison
Ampex Corp vs Biogen Idec MA Inc
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 8399514· 2013
Using Dimethyl Fumarate to Treat Multiple Sclerosis
Activity by Decade
2010s1
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