Portfolio comparison
William Stanley, Jr. vs Owens Illinois Glass Co
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 349611· 1886
William Stanley Jr.'s Early Alternating Current Transformer System
Activity by Decade
1880s1
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.