Portfolio comparison
Carter Wallace Inc vs Marvin C. Stone
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Carter Wallace Inc
Patents indexed
1
Year range
1989
Most recent
1989
consumer_electronicsmaterials
Top Patents1 enriched
US 4810490· 1989
How to Make Clear, Waterproof Sunscreen That Doesn't Feel Greasy
Activity by Decade
1980s1
Top Patents1 enriched
US 375962· 1888
How the Modern Paper Drinking Straw Was Invented
Activity by Decade
1880s1
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