James W. Schwerdt

AL Auto-Trol Limited: 1 patents #11 of 37Top 30%

📍 Mequon, WI: #291 of 452 inventorsTop 65%

🗺 Wisconsin: #23,834 of 40,088 inventorsTop 60%

Overall (All Time): #3,959,501 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4772386	Filter with liquid meter	Edward Grout, Nolan K. Rhoades, Robert Ahrens	1988-09-20