Portfolio comparison
ELECTRO STRING INSTR CORP vs SnapTrack 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
Company B
SnapTrack Inc
Patents indexed
1
Year range
2004
Most recent
2004
consumer_electronicstelecommunicationssemiconductors
Top Patents1 enriched
US 6816710· 2004
How GPS Receivers See Weak Signals by Combining Data
Activity by Decade
2000s1
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