Portfolio comparison
WANKEL AND NSU MOTORENWERKE AG vs DUAL PARKING METER Co
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
WANKEL AND NSU MOTORENWERKE AG
Patents indexed
1
Year range
1961
Most recent
1961
automotivemechanical
Top Patents1 enriched
US 2988008· 1961
How the Wankel Rotary Engine Works
Activity by Decade
1960s1
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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