Portfolio comparison
ELECTRO STRING INSTR CORP vs Bloom Energy
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
Bloom Energy
Patents indexed
2
Year range
2010
Most recent
2010
energytelecommunicationssemiconductorsmaterialspower_generation
Top Patents2 enriched
US 7833668· 2010
How Fuel Cells Reuse Exhaust Hydrogen for High Efficiency
US 7846599· 2010
How a High-Temperature Fuel Cell System Starts, Stops, and Recycles Fuel
Activity by Decade
2010s2
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