PC

Pek L. Choo

NC Nalco Chemical: 2 patents #5 of 56Top 9%
📍 Naperville, IL: #23 of 193 inventorsTop 15%
🗺 Illinois: #421 of 4,656 inventorsTop 10%
Overall (1997): #27,761 of 185,788Top 15%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5667697 Colloidal silica/polyelectrolyte blends for natural water clarification Kristine S. Salmen, David Picco, Michio Kobayashi 1997-09-16
5620629 Colloidal silica/polyelectrolyte blends for natural water clarification Kristine S. Salmen, David Picco, Michio Kobayashi 1997-04-15