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Alan Long Thien Du

AE Acorn Engineering: 2 patents #2 of 8Top 25%
📍 Covina, CA: #2 of 5 inventorsTop 40%
🗺 California: #9,729 of 55,090 inventorsTop 20%
Overall (2025): #143,332 of 469,880Top 35%
2
Patents 2025

Issued Patents 2025

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12359735 Spring stop for clapper valve Edward Barry Knoles, Luis Fernando Prieto, Pui Yuen Ng, Arturo Gomez, Adrian Alexander Filip 2025-07-15
12292123 Clapper with an upstream cam-arm and roller arrangement Luis Fernando Prieto, Pui Yuen Ng, Arturo Gomez, Adrian Alexander Filip 2025-05-06