Portfolio comparison
Elisha G. Otis vs US Department of Agriculture USDA
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 31128· 1861
How Elisha Otis Invented the Modern Safety Elevator
Activity by Decade
1860s1
Company B
US Department of Agriculture USDA
Patents indexed
1
Year range
1948
Most recent
1948
biotechpharmaceutical
Top Patents1 enriched
US 2442141· 1948
How Andrew Moyer Learned to Mass-Produce Penicillin
Activity by Decade
1940s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.