Portfolio comparison
Theophilus Van Kannel vs Centocor Inc
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 387571· 1888
How the Revolving Door Was Invented
Activity by Decade
1880s1
Top Patents1 enriched
US 7070775· 2006
How Engineered Antibodies Block Inflammation-Causing Proteins
Activity by Decade
2000s1
How to use
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