Frederick Klaessig

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Doylestown, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and compositions for penetrating and removing accumulated co...
- Patent number 4,789,406
- Issue date Dec 6, 1988
- Betz Laboratories, Inc.
- E. Paul Holder
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method for treating black liquor using acrylic acid polymer
- Patent number 4,263,092
- Issue date Apr 21, 1981
- Betz Laboratories, Inc.
- Frederick C. Klaessig
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Polyacrylic acids and methyl vinyl ether/maleic anhydride copolymer...
- Patent number 4,255,309
- Issue date Mar 10, 1981
- Betz Laboratories, Inc.
- Frederick C. Klaessig
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents

Information Patent Application
Dispersion for chemical-mechanical polishing
- Publication number 20070043124
- Publication date Feb 22, 2007
- Degussa AG
- Ralph Brandes
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...