Portfolio comparison
Joshua Pusey vs Owens Illinois Glass Co
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 483166· 1892
How Joshua Pusey Invented the Paper Matchbook
Activity by Decade
1890s1
Top Patents1 enriched
US 2133235· 1938
How Glass Fibers Are Spun for Insulation
Activity by Decade
1930s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.