Portfolio comparison
ELECTRO STRING INSTR CORP vs Bellicon AG
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 RE49995· 2024
How Trampoline Hook Elements Prevent Strap Wear
Activity by Decade
2020s1
How to use
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