Portfolio comparison
WANKEL AND NSU MOTORENWERKE AG vs Walter Hunt
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 6281· 1849
How Walter Hunt Invented the Modern Safety Pin
Activity by Decade
1840s1
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