Company Portfolio
EI Du Pont de Nemours and Co
Portfolio strength
Active portfolio
Patents indexed
6
Year range
1934 – 1974
Patent Activity by Year
All Patents
6
Career timeline
6 patents, 1934–1974
Dot size = forward citations
Hover or tap any dot to see the patent. Larger dots indicate more forward citations — a proxy for downstream influence.
The Molecular Structure of Kevlar High-Strength Fiber
Stephanie Kwolek's 1971 patent for DuPont describing the molecular alignment and manufacturing of extremely strong, lightweight synthetic aramid fibers, which became famous as Kevlar.
How Wallace Carothers Invented Nylon
The foundational 1935 patent for synthetic linear polyamides, the chemical process that created the material we now call nylon.
How Plastic Soda Bottles Are Made Stronger Using Stretched Molecules
A 1970s invention that describes how to make lightweight, clear plastic bottles strong enough to hold carbonated drinks without exploding.
How Stephanie Kwolek Invented the Liquid Crystal Solution for Kevlar
A 1969 chemical discovery describing a specialized liquid mixture that allows for the creation of incredibly strong, high-performance synthetic fibers.
How Spandex Elastic Fibers Are Chemically Engineered
DuPont's 1960 patent for a stretchy, durable synthetic fiber made from segmented polymers, which became the foundation for modern Spandex.
How DuPont Invented Neoprene Synthetic Rubber
A 1934 patent describing the chemical process to turn chlorobutadiene into a durable, oil-resistant synthetic rubber known as Neoprene.
Patent monitoring