Portfolio comparison
CLAUDE R WICKARD vs Theophilus Van Kannel
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
CLAUDE R WICKARD
Patents indexed
1
Year range
1943
Most recent
1943
consumer_electronicsmechanicalmaterials
Top Patents1 enriched
US 2331117· 1943
How the First Aerosol Spray Can Works
Activity by Decade
1940s1
Top Patents1 enriched
US 387571· 1888
How the Revolving Door Was Invented
Activity by Decade
1880s1
How to use
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