Portfolio comparison
Hookless Fastener Co vs John Gorrie
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Hookless Fastener Co
Patents indexed
1
Year range
1917
Most recent
1917
mechanicalconsumer_electronics
Top Patents1 enriched
US 1219881· 1917
How Gideon Sundback Invented the Modern Zipper
Activity by Decade
1910s1
Top Patents1 enriched
US 8080· 1851
John Gorrie's 1851 Patent for Artificial Ice Production
Activity by Decade
1850s1
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