Portfolio comparison
LaMarcus A. Thompson vs Arnold O. Beckman
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 310966· 1885
Early Roller Coaster Design for Thrill Rides
Activity by Decade
1880s1
Company B
Arnold O. Beckman
Patents indexed
1
Year range
1936
Most recent
1936
biotechmechanicalsemiconductors
Top Patents1 enriched
US 2058761· 1936
How Arnold Beckman Invented the Modern pH Meter
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.