Portfolio comparison
Cetus Corp vs ChaCha Search Inc
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Cetus Corp
Patents indexed
5
Year range
1987 – 1991
Most recent
1991
biotechresearch_toolspharmaceuticaldiagnosticsmedical_devices
Top Patents5 enriched
US 4683195· 1987
How to Make Billions of Copies of a DNA Segment
US 4965188· 1990
How to Make Many Copies of a DNA Piece with Heat
US 4683202· 1987
How to Make Many Copies of a Specific DNA Segment
Activity by Decade
1980s3
1990s2
Top Patents1 enriched
US 8577894· 2013
How Human Searchers Unlock Restricted Web Content for Users
Activity by Decade
2010s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.