Portfolio comparison
Protein Design Labs Inc vs Elisha G. Otis
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 5585089· 1996
How Scientists Create Human-Friendly Antibodies for Medicine
Activity by Decade
1990s1
Top Patents1 enriched
US 31128· 1861
How Elisha Otis Invented the Modern Safety Elevator
Activity by Decade
1860s1
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