Portfolio comparison
CLAUDE R WICKARD vs DUAL PARKING METER Co
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 2118318· 1938
How the First Coin-Operated Parking Meter Works
Activity by Decade
1930s1
How to use
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