Portfolio comparison
Sperry Corp vs Velcro SA
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_electronics
Top Patents1 enriched
US 4558302· 1985
How Computers Compress Data Using Dictionary Building
Activity by Decade
1980s1
Company B
Velcro SA
Patents indexed
1
Year range
1955
Most recent
1955
mechanicalmaterialsconsumer_electronics
Top Patents1 enriched
US 2717437· 1955
How George de Mestral Invented Velcro
Activity by Decade
1950s1
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