Portfolio comparison
ELECTRO STRING INSTR CORP vs Ciba Geigy Corp
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
Ciba Geigy Corp
Patents indexed
2
Year range
1979 – 1996
Most recent
1996
pharmaceuticalbiotechchemistryoncology
Top Patents2 enriched
US 5521184· 1996
New Pyrimidine Chemical Compounds for Treating Tumors
US 4147780· 1979
Chemical Compounds for Fighting Bacterial and Yeast Infections
Activity by Decade
1970s1
1990s1
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