DH

Darren Joseph Hopf

Caterpillar: 4 patents #1,659 of 8,398Top 20%
📍 Peoria, IL: #459 of 1,769 inventorsTop 30%
🗺 Illinois: #21,447 of 84,256 inventorsTop 30%
Overall (All Time): #1,070,423 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
12209598 Hydraulic pump or motor with mounting configuration for increased torque Justin Douglas Speichinger, Ramalho Stive, Aurelien BERNARD, Paul Alan Rousseau 2025-01-28
12006924 Axial piston pump mounting flange configuration Matthew Mickiewicz, Stive Ramalho, Justin Douglas Speichinger, Paul Alan Rousseau, Brice Mallein 2024-06-11
11953032 Hydraulic pump or motor with mounting configuration for increased torque Justin Douglas Speichinger, Ramalho Stive, Aurelien BERNARD, Paul Alan Rousseau 2024-04-09
10330126 Fan control system with electro-hydraulic valve providing three fan motor operational positions Justian D. Reever, Timothy L. Hand 2019-06-25