Portfolio comparison
ELECTRO STRING INSTR CORP vs Tianjin University
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
Company B
Tianjin University
Patents indexed
1
Year range
2024
Most recent
2024
energyrenewable_energytelecommunicationssoftwareai_ml
Top Patents1 enriched
US 11862969· 2024
Optimizing Hybrid Batteries for Grid-Connected Wind Power Systems
Activity by Decade
2020s1
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