Portfolio comparison
John L. Mason vs Ethicon
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 22186· 1858
John Mason's 1858 Patent for the Mason Jar Lid
Activity by Decade
1850s1
Top Patents1 enriched
US 10959744· 2021
Customizing Surgical Dissectors Using 3D Printing
Activity by Decade
2020s1
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