Portfolio comparison
Theophilus Van Kannel vs Moleculon Research Corp
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 387571· 1888
How the Revolving Door Was Invented
Activity by Decade
1880s1
Company B
Moleculon Research Corp
Patents indexed
1
Year range
1972
Most recent
1972
mechanicalconsumer_electronics
Top Patents1 enriched
US 3655201· 1972
How the 2x2x2 Magnetic Puzzle Cube Works
Activity by Decade
1970s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.