EP

Elmer B. Phelps

Caterpillar: 2 patents #2,982 of 8,398Top 40%
📍 Creve Coeur, IL: #5 of 15 inventorsTop 35%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,332,222 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4867253 Dampener for impacting mechanism Larry G. Eftefield 1989-09-19
4852662 Impacting mechanism Raymond A. Bianchi, David Kistner, Joseph Oswald 1989-08-01