Portfolio comparison
ELECTRO STRING INSTR CORP vs Biogen Idec MA Inc
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
ELECTRO STRING INSTR CORP
Patents indexed
1
Year range
1937
Most recent
1937
consumer_electronicsmechanical
Top Patents1 enriched
US 2089171· 1937
How the Frying Pan Guitar Created the Electric Guitar
Activity by Decade
1930s1
Top Patents1 enriched
US 8399514· 2013
Using Dimethyl Fumarate to Treat Multiple Sclerosis
Activity by Decade
2010s1
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