Portfolio comparison
Black and Decker Inc vs Marvin C. Stone
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Black and Decker Inc
Patents indexed
1
Year range
2021
Most recent
2021
consumer_electronicsmechanical
Top Patents1 enriched
US RE48399· 2021
How to Make Electric Motors Run Smoother and Last Longer
Activity by Decade
2020s1
Top Patents1 enriched
US 375962· 1888
How the Modern Paper Drinking Straw Was Invented
Activity by Decade
1880s1
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