Portfolio comparison
John Gorrie vs Contemporary Amperex Technology Co
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 8080· 1851
John Gorrie's 1851 Patent for Artificial Ice Production
Activity by Decade
1850s1
Top Patents1 enriched
US 20240047988
Smartly Turning On and Off a Vehicle Battery Charger
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.