Portfolio comparison
Ricoh Co Ltd vs Control Data Corp
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 6476836· 2002
How Printers Save Toner by Dropping Light-Colored Pixels
Activity by Decade
2000s1
Top Patents1 enriched
US 3388314· 1968
Gordon Gould's Early Concepts for High-Frequency Radiation Devices
Activity by Decade
1960s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.