William S. Karn

📍 Pittsburgh, PA: #1,996 of 7,570 inventorsTop 30%

🗺 Pennsylvania: #19,182 of 74,527 inventorsTop 30%

Overall (All Time): #1,310,177 of 4,157,543Top 35%

Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
4284492	Reverse osmosis electrodialysis combined means	—	1981-08-18
4263017	Permeable membrane assembly	—	1981-04-21
4225413	Spiral wound electrodialysis cell	—	1980-09-30
4197206	Heat sealable ion permeable membranes	—	1980-04-08