William A. van den Broek

📍 Doylestown, PA: #451 of 956 inventorsTop 50%

🗺 Pennsylvania: #30,495 of 74,527 inventorsTop 45%

Overall (All Time): #2,345,421 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4706309	Automatic rim flow water level control system for gutters	—	1987-11-17
4574048	Vacuum filter system for swimming pools	—	1986-03-04