Portfolio comparison
James Ritty vs Worcester Polytechnic Institute
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
Company B
Worcester Polytechnic Institute
Patents indexed
1
Year range
2019
Most recent
2019
consumer_electronicsautomotivematerialsenergychemical_processing
Top Patents1 enriched
US 10522884· 2019
Recycling Lithium-Ion Batteries to Make New Cathode Materials
Activity by Decade
2010s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.