Portfolio comparison
Chiron Ophthalmics Inc vs WANKEL AND NSU MOTORENWERKE AG
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Chiron Ophthalmics Inc
Patents indexed
1
Year range
1993
Most recent
1993
pharmaceuticalbiotechmaterials
Top Patents1 enriched
US 5272135· 1993
Preventing Protein Damage with Extra Methionine
Activity by Decade
1990s1
Company B
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
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