Portfolio comparison
James Ritty vs USAI LLC
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 271363· 1883
How James Ritty's First Cash Register Tracked Sales
Activity by Decade
1880s1
Top Patents1 enriched
US RE50690· 2025
How Recessed Wall Wash Lights Reduce Glare Using Angled Lenses
Activity by Decade
2020s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.