Portfolio comparison
Beiersdorf AG vs Marvin C. Stone
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 6793929· 2004
How to Make Stable, High-Water Content Skin Creams
Activity by Decade
2000s1
Top Patents1 enriched
US 375962· 1888
How the Modern Paper Drinking Straw Was Invented
Activity by Decade
1880s1
How to use
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