Portfolio comparison
Sealed Air Corp vs Theophilus Van Kannel
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Sealed Air Corp
Patents indexed
1
Year range
1964
Most recent
1964
mechanicalmaterialsconsumer_electronics
Top Patents1 enriched
US 3142599· 1964
How Bubble Wrap Is Manufactured
Activity by Decade
1960s1
Top Patents1 enriched
US 387571· 1888
How the Revolving Door Was Invented
Activity by Decade
1880s1
How to use
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