Portfolio comparison
Sperry Corp vs Central Glass Co Ltd
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Sperry Corp
Patents indexed
1
Year range
1985
Most recent
1985
softwaretelecommunicationsconsumer_electronicssemiconductors
Top Patents1 enriched
US 4558302· 1985
How Computers Shrink Data Using a Dynamic Dictionary
Activity by Decade
1980s1
Top Patents1 enriched
US 6033785· 2000
How Car Windows Keep Inside Private Without Blocking the Driver's View
Activity by Decade
2000s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.