David A. Picco

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Shorewood, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Colloidal silica/polyelectrolyte blends for pulp and paper applicat...
- Patent number 5,840,158
- Issue date Nov 24, 1998
- Nalco Chemical Company
- Pek Lee Choo
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Colloidal silica/polyelectrolyte blends for natural water clarifica...
- Patent number 5,667,697
- Issue date Sep 16, 1997
- Nalco Chemical Company
- Kristine S. Salmen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Colloidal silica/polyelectrolyte blends for natural water clarifica...
- Patent number 5,620,629
- Issue date Apr 15, 1997
- Nalco Chemical Company
- Kristine S. Salmen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Steel mill flume water treatment
- Patent number 5,554,298
- Issue date Sep 10, 1996
- Nalco Chemical Company
- Ronald D. Kochik
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...