Portfolio comparison
Chiron Ophthalmics Inc vs Theophilus Van Kannel
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
Top Patents1 enriched
US 387571· 1888
How the Revolving Door Was Invented
Activity by Decade
1880s1
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