Portfolio comparison
Ricoh Co Ltd vs Ciba Geigy 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
Company B
Ciba Geigy Corp
Patents indexed
2
Year range
1979 – 1996
Most recent
1996
pharmaceuticalbiotechchemistryoncology
Top Patents2 enriched
US 5521184· 1996
New Pyrimidine Chemical Compounds for Treating Tumors
US 4147780· 1979
Chemical Compounds for Fighting Bacterial and Yeast Infections
Activity by Decade
1970s1
1990s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.