Portfolio comparison
Sperry Gyroscope Co Inc vs LRI LP
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 1242065· 1917
How Elmer Sperry Invented the Gyroscopic Compass for Ships
Activity by Decade
1910s1
Company B
LRI LP
Patents indexed
1
Year range
1987
Most recent
1987
medical_devicesbiotechhealthcarelasersophthalmology
Top Patents1 enriched
US 4665913· 1987
How Lasers Correct Vision by Reshaping the Eye's Front Surface
Activity by Decade
1980s1
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