Don Dongcho Ha

📍 Long Beach, CA: #15 of 132 inventorsTop 15%

🗺 California: #3,616 of 26,868 inventorsTop 15%

Overall (2005): #58,007 of 245,428Top 25%

Patents 2005

Issued Patents 2005

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6964590	Lateral thrust drive unit for marine vessels	—	2005-11-15
6957556	Disk tumbler lock and key, improved means and methods of manufacturing for	—	2005-10-25