PS

Philip Carl Spengler

Caterpillar: 1 patents #270 of 972Top 30%
📍 Washington, IL: #6 of 9 inventorsTop 70%
🗺 Illinois: #2,824 of 8,424 inventorsTop 35%
Overall (2017): #278,948 of 506,227Top 60%
1
Patents 2017

Issued Patents 2017

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9630132 Fluid filtering system Vincent P. Caliendo 2017-04-25