Portfolio comparison
LaMarcus A. Thompson vs MARY P JACOB
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
Top Patents1 enriched
US 1115674· 1914
How Mary Phelps Jacob Invented the Modern Backless Brassiere
Activity by Decade
1910s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.