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Pengfel Ma

Caterpillar: 3 patents #2,162 of 8,398Top 30%
📍 Naperville, IL: #1,350 of 3,051 inventorsTop 45%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,050,377 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8726645 Hydraulic control system having energy recovery Tonglin Shang, Jiao Zhang 2014-05-20
7621211 Force feedback poppet valve having an integrated pressure compensator Philippe Georges Vande Kerckhove 2009-11-24