Portfolio comparison
EI Du Pont de Nemours and Co vs NEC
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
EI Du Pont de Nemours and Co
Patents indexed
6
Year range
1934 – 1974
Most recent
1974
materialsautomotiveconsumer_electronicsmechanicalaerospace
Top Patents6 enriched
US 3819587· 1974
The Molecular Structure of Kevlar High-Strength Fiber
US 2130523· 1938
How Wallace Carothers Invented Nylon
US 3733309· 1973
How Plastic Soda Bottles Are Made Stronger Using Stretched Molecules
Activity by Decade
1930s2
1960s1
1970s3
Company B
NEC
Patents indexed
2
Year range
2015 – 2017
Most recent
2017
automotiveenergysoftwaretelecommunicationsconsumer_electronics
Top Patents2 enriched
US 9791514· 2017
Forecasting When Used Electric Car Batteries Will Be Available for Reuse
US 9168838· 2015
How an EV Charging Station Manages Power from Batteries and the Grid
Activity by Decade
2010s2
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