Method for bleaching chemical paper pulps by final ozone treatment at high temperature

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8268120
APP PUB NO 20100065233A1
SERIAL NO

12516369

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Abstract

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A method for treating a prebleached chemical pulp including a step of ozone treatment of the pulp, carried out at a temperature above 60° C., advantageously above 65° C. and even more advantageously above or equal to 70° C.

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Patent Owner(s)

Patent OwnerAddress
ITT MANUFACTURING ENTERPRISES INCWILMINGTON DE

International Classification(s)

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  • 2007 Application Filing Year
  • D06L Class
  • 23 Applications Filed
  • 10 Patents Issued To-Date
  • 43.48 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2007200820092010201120122013201420150255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chirat, Christine Grenoble, FR 4 5
Hostachy, Jean-Christophe Taluyers, FR 2 6
Lachenal, Dominique Echirolles, FR 8 34
Pipon, Guillaume Saint Martin d'Heres, FR 1 4
Ried, Achim Bad Oyenhausen, DE 8 15

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Patent Citation Ranking

  • 1 Citation Count
  • D06L Class
  • 4 % this patent is cited more than
  • 13 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges23010312201 - 1011 - 2021 - 3031 - 4081 - 9091 - 10002468101214161820222426283032

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