Portfolio comparison
Burton Parsons and Co Inc vs James Ritty
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Burton Parsons and Co Inc
Patents indexed
1
Year range
1976
Most recent
1976
biotechpharmaceutical
Top Patents1 enriched
US 3987163· 1976
How Polystyrene Sulfonate Helps Treat Dry Eye Symptoms
Activity by Decade
1970s1
Top Patents1 enriched
US 271363· 1883
How James Ritty's First Cash Register Tracked Sales
Activity by Decade
1880s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.