Portfolio comparison
Control Data Corp vs Green Cross Corp Japan
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 3388314· 1968
Gordon Gould's Early Concepts for High-Frequency Radiation Devices
Activity by Decade
1960s1
Top Patents1 enriched
US 5002952· 1991
How to Make Hard-to-Absorb Medicines Easier for the Body to Use
Activity by Decade
1990s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.