Method and system to enhance fiber development by addition of treatment agent during mechanical pulping

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8282773
APP PUB NO 20090151880A1
SERIAL NO

12257666

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A mechanical pulping method including: defibrating a comminuted cellulosic material; mechanically refining the defibrated cellulosic material in a primary refining step; introducing to the cellulosic material at least one of a chemical agent and a biological during the defibration step or the mechanical refining step, and producing pulp from the refined and defibrated cellulosic material.

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Patent Owner(s)

Patent OwnerAddress
ANDRITZ INC5405 WINDWARD PARKWAY SUITE 100W ALPHARETTA GA 30004

International Classification(s)

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  • 2008 Application Filing Year
  • D21B Class
  • 11 Applications Filed
  • 6 Patents Issued To-Date
  • 54.55 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances200820092010201120120255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aichinger, Johann Pregarten, AT 4 37
Grossalber, Johann Baden, AT 2 9
Hill, Jan Tyringe, SE 41 1213
Sabourin, Marc Beavercreek, US 7 81

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Patent Citation Ranking

  • 2 Citation Count
  • D21B Class
  • 0 % this patent is cited more than
  • 13 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges6211 - 1011 - 2021 - 3000.511.522.533.544.555.566.5

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