Portfolio comparison
John L. Mason vs Merck and Co Inc
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 4231938· 1980
The Discovery of Lovastatin for Lowering Cholesterol
Activity by Decade
1980s1
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