Portfolio comparison
William F. Semple vs Ethicon
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 98304· 1869
William Semple's 1869 Patent for Improved Chewing Gum
Activity by Decade
1860s1
Top Patents1 enriched
US 10959744· 2021
Customizing Surgical Dissectors Using 3D Printing
Activity by Decade
2020s1
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