Portfolio comparison

Marvin C. Stone vs Well Being Digital

Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.

Company A

Marvin C. Stone

Patents indexed

Year range

1888

Most recent

1888

consumer_electronicsmechanical

Top Patents1 enriched

How the Modern Paper Drinking Straw Was Invented

Activity by Decade

1880s

Company B

Patents indexed

consumer_electronicssoftwaretelecommunicationsbiotechwearables

Top Patents1 enriched

Smart Clothing That Compares Pulse Signals from Both Sides of Your Body

How to use

Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.