Portfolio comparison
EI Du Pont de Nemours and Co vs Amazon com Inc
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
EI Du Pont de Nemours and Co
Patents indexed
2
Year range
1938 – 1972
Most recent
1972
materials-sciencetextilespolymer-chemistrymanufacturingconsumer-goods
Top Patents2 enriched
US 2130948· 1938
Nylon — The First Synthetic Fiber, Invented at DuPont
US 3671542· 1972
Kevlar — The Fiber Five Times Stronger Than Steel, Invented by Accident
Activity by Decade
1930s1
1970s1
Company B
Amazon com Inc
Patents indexed
2
Year range
1999 – 2001
Most recent
2001
ecommercesoftwaretelecommunicationsconsumer_electronicsai_ml
Top Patents2 enriched
US 5960411· 1999
How Amazon's One-Click Online Ordering System Works
US 6266649· 2001
How Online Stores Suggest 'You Might Also Like' Products
Activity by Decade
1990s1
2000s1
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