Portfolio comparison
Sperry Gyroscope Co Inc vs Ethicon
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
Top Patents1 enriched
US 10959744· 2021
Customizing Surgical Dissectors Using 3D Printing
Activity by Decade
2020s1
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