Charles S. Allen

SV Sloan Valve: 1 patents #2 of 3Top 70%

📍 River Forest, IL: #3 of 9 inventorsTop 35%

🗺 Illinois: #566 of 2,749 inventorsTop 25%

Overall (1982): #73,008 of 81,411Top 90%

Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4327891	Flush valve diaphragm having plastic insert	Charles C. Allen, Frederic Lissau	1982-05-04