DF

Douglas W. Friedrich

Caterpillar: 2 patents #13 of 194Top 7%
📍 East Peoria, IL: #2 of 18 inventorsTop 15%
🗺 Illinois: #371 of 4,484 inventorsTop 9%
Overall (1994): #35,226 of 165,921Top 25%
2
Patents 1994

Issued Patents 1994

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5375059 Vehicle position determination system and method Christos Kyrtsos, Adam J. Gudat, Dana A. Christensen, Darrell E. Stafford 1994-12-20
5359521 Method and apparatus for determining vehicle position using a satellite based navigation system Christos Kyrtsos, Adam J. Gudat 1994-10-25