JE

John D. Evans

CL Coal Industry (Patents) Limited: 1 patents #8 of 40Top 20%
Eastman Kodak: 1 patents #86 of 296Top 30%
📍 Calgary, CA: #2 of 57 inventorsTop 4%
Overall (1982): #11,932 of 81,411Top 15%
2
Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4341109 Method and apparatus for determining cigarette filter rod pressure drop — 1982-07-27
4325364 Training breathing apparatus — 1982-04-20