Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
FC

Frederick A. Camplin

Caterpillar: 3 patents #2,162 of 8,398Top 30%
Peoria, IL: #577 of 1,769 inventorsTop 35%
Illinois: #26,653 of 84,256 inventorsTop 35%
Overall (All Time): #1,645,562 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5697341 Fill metered hydraulically actuated fuel injection system and method of fuel injection Thomas G. Ausman, Michael P. Harmon, Douglas E. Longman, Lianghe Zuo 1997-12-16
5522545 Hydraulically actuated fuel injector Jeffrey C. Huang 1996-06-04
5505384 Rate shaping control valve for fuel injection nozzle 1996-04-09