David Zingerman

UN Unknown: 1 patents #273 of 2,925Top 10%

📍 Los Angeles, CA: #75 of 620 inventorsTop 15%

🗺 California: #4,287 of 28,521 inventorsTop 20%

Overall (2003): #70,313 of 273,478Top 30%

Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6669038	Self-propelled crane	—	2003-12-30
6543331	Hydraulic lifting device	—	2003-04-08