John D. Langley

EA E.I. Du Pont De Nemours And: 1 patents #116 of 563Top 25%

KG Kappler Safety Group: 1 patents #1 of 1Top 100%

📍 Guntersville, AL: #1 of 5 inventorsTop 20%

🗺 Alabama: #30 of 435 inventorsTop 7%

Overall (1989): #23,756 of 140,708Top 20%

Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4855178	Composite chemical barrier fabric	—	1989-08-08
4833010	Composite chemical barrier fabric	—	1989-05-23