Portfolio comparison
Merck and Co Inc vs TANN CO
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 4231938· 1980
The Discovery of Lovastatin for Lowering Cholesterol
Activity by Decade
1980s1
Top Patents1 enriched
US 3351836· 1967
How Intermittent Windshield Wipers Work
Activity by Decade
1960s1
How to use
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