Portfolio comparison
Elias Howe vs Buffalo Forge Co
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 4750· 1846
How Elias Howe Invented the Modern Lockstitch Sewing Machine
Activity by Decade
1840s1
Top Patents1 enriched
US 808897· 1906
How Willis Carrier Invented the Modern Air Conditioner
Activity by Decade
1900s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.