MM

Mark Ma

📍 Taipei, CA: #21 of 96 inventorsTop 25%
Overall (2003): #53,464 of 273,478Top 20%
2
Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6619306 Parasol opening device 2003-09-16
6591848 Ratchet based control device of large-sized parasol 2003-07-15