Joseph W. Caldwell

📍 Danville, CA: #45 of 111 inventorsTop 45%

🗺 California: #8,996 of 28,521 inventorsTop 35%

Overall (2003): #195,418 of 273,478Top 75%

Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6588271	Liquid level change sensor	—	2003-07-08