Paper production

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12157974
APP PUB NO 20230056642A1
SERIAL NO

17767555

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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There is provided a method of producing a paper, comprising the steps of: a) providing a pulp having a Schopper-Riegler (SR) number measured according to ISO 5267-1:1999 of 25-50, which pulp comprises at least 70% by weight sulphate or sulphite pulp; b) diluting the pulp to a consistency of 0.1%-0.9%; and c) forming a web from the diluted pulp from step b) in a forming section at a machine speed of at least 1100 m/min, such as 1100-1800 m/min.

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Patent Owner(s)

Patent OwnerAddress
BILLERUDKORSNAS AB169 27 SOLNA

International Classification(s)

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  • 2020 Application Filing Year
  • D21H Class
  • 395 Applications Filed
  • 206 Patents Issued To-Date
  • 52.16 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2020202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nordstrom, Fredrik Karlstad, SE 38 385

Cited Art Landscape

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Patent Citation Ranking

  • 0 Citation Count
  • D21H Class
  • 0 % this patent is cited more than
  • 1 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges3282601 - 10020406080100120140160180200220240260280300320340360

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