Methods of pretreating lignocellulosic biomass with reduced formation of fermentation inhibitors

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9243364
APP PUB NO 20150354141A1
SERIAL NO

14299926

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Calculated Rating
US Family Size
Non-US Coverage
Patent Longevity
Forward Citations

Abstract

See full text

Methods of pretreating lignocellulosic biomass in preparation for enzymatic saccharification and fermentation are provided. Also provided are methods of producing ethanol from lignocellulosic biomass via enzymatic saccharification and fermentation that utilize the pretreatment method. In the methods, pretreatment is conducted in two stages. In the first stage, the lignocellulosic biomass is treated in a mildly acidic or near pH-neutral solution to promote delignification and lignin sulfonation, while minimizing the formation of degradation products that inhibit subsequent enzymatic saccharification and/or fermentation. In the second stage, the pH of the solution is decreased in order to promote the depolymerization and dissolution of hemicelluloses in the lignocellulosic biomass.

First Claim

See full text

Other Claims data not available

Family

PCTEP
+
  • No Family data available.

Patent Owner(s)

Patent OwnerAddress
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF AGRICULTURE1400 INDEPENDENCE AVE S W WASHINGTON DC 20250

International Classification(s)

loading....
  • 2014 Application Filing Year
  • C12P Class
  • 1590 Applications Filed
  • 1297 Patents Issued To-Date
  • 81.58 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances201420152016201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gleisner, Roland Jefferson, US 8 6
Zhu, JunYong Madison, US 15 55

Cited Art Landscape

Load Citation

Patent Citation Ranking

  • 4 Citation Count
  • C12P Class
  • 54.95 % this patent is cited more than
  • 9 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges3040217223350209322101 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8091 - 1000200400600800100012001400160018002000220024002600280030003200

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jul 26, 2027