Patents by Inventor Maria C. Leana

Maria C. Leana has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Stabilized chlorine dioxide for contamination control in zymomonas fermentation
    Patent number: 9522203
    Abstract: Though chlorine dioxide is generally used to control bacterial contamination, a method was developed which allows the use of stabilized chlorine dioxide (SCD) for controlling contamination during fermentation that uses the bacteria Zymomonas as the biocatalyst, even though Zymomonas is sensitive to chlorine dioxide. Parameters were identified for inoculating a composition for fermentation with Zymomonas cells after a time period has elapsed following SCD addition.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: December 20, 2016
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Maria C Leana, Brian G Lefebvre
  • STABILIZED CHLORINE DIOXIDE FOR CONTAMINATION CONTROL IN ZYMOMONAS FERMENTATION
    Publication number: 20150359916
    Abstract: Though chlorine dioxide is generally used to control bacterial contamination, a method was developed which allows the use of stabilized chlorine dioxide (SCD) for controlling contamination during fermentation that uses the bacteria Zymomonas as the biocatalyst, even though Zymomonas is sensitive to chlorine dioxide. Parameters were identified for inoculating a composition for fermentation with Zymomonas cells after a time period has elapsed following SCD addition.
    Type: Application
    Filed: August 26, 2014
    Publication date: December 17, 2015
    Inventors: Maria C Leana, Brian G Lefebvre
  • Stabilized chlorine dioxide for contamination control in fermentation
    Patent number: 8846357
    Abstract: Though chlorine dioxide is generally used to control bacterial contamination, a method was developed which allows the use of stabilized chlorine dioxide (SCD) for controlling contamination during fermentation that uses the bacteria Zymomonas as the biocatalyst, even though Zymomonas is sensitive to chlorine dioxide. Parameters were identified for inoculating a composition for fermentation with Zymomonas cells after a time period has elapsed following SCD addition.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: September 30, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Maria C Leana, Brian G Lefebvre
  • STABILIZED CHLORINE DIOXIDE FOR CONTAMINATION CONTROL IN ZYMOMONAS FERMENTATION
    Publication number: 20140178956
    Abstract: Though chlorine dioxide is generally used to control bacterial contamination, a method was developed which allows the use of stabilized chlorine dioxide (SCD) for controlling contamination during fermentation that uses the bacteria Zymomonas as the biocatalyst, even though Zymomonas is sensitive to chlorine dioxide. Parameters were identified for inoculating a composition for fermentation with Zymomonas cells after a time period has elapsed following SCD addition.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 26, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Maria C. Leana, Brian G. Lefebvre
  • Contaminant control in fermentation using hop acids
    Patent number: 8759069
    Abstract: Contamination was controlled in fermentations using Zymomonas mobilis as the biocatalyst, without negative impact on fermentation production, by the addition of hop acids. The effective concentration of hop acids was found to be dependent upon the type of fermentation medium used.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: June 24, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: George C Fox, Maria C Leana, Brian G Lefebvre
  • Contaminant control in fermentation using virginiamycin
    Patent number: 8722373
    Abstract: Contamination was controlled in fermentations using Zymomonas mobilis as the biocatalyst, without negative impact on fermentation production, by the addition of virginiamycin. The effective concentration of virginiamycin was found to be dependent upon the type of fermentation medium used.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: May 13, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Maria C Leana, Brian G Lefebvre
  • Contaminant control in fermentation using virginiamycin
    Patent number: 8697426
    Abstract: Contamination was controlled in fermentations using Zymomonas mobilis as the biocatalyst, without negative impact on fermentation production, by the addition of virginiamycin. The effective concentration of virginiamycin was found to be dependent upon the type of fermentation medium used.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: April 15, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Maria C Leana, Brian G Lefebvre
  • CONTAMINANT CONTROL IN ZYMOMONAS FERMENTATION USING VIRGINIAMYCIN
    Publication number: 20140099689
    Abstract: Contamination was controlled in fermentations using Zymomonas mobilis as the biocatalyst, without negative impact on fermentation production, by the addition of virginiamycin. The effective concentration of virginiamycin was found to be dependent upon the type of fermentation medium used.
    Type: Application
    Filed: December 10, 2013
    Publication date: April 10, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: MARIA C. LEANA, Brian G. Lefebvre
  • CONTAMINANT CONTROL IN ZYMOMONAS FERMENTATION USING VIRGINIAMYCIN
    Publication number: 20130337522
    Abstract: Contamination was controlled in fermentations using Zymomonas mobilis as the biocatalyst, without negative impact on fermentation production, by the addition of virginiamycin. The effective concentration of virginiamycin was found to be dependent upon the type of fermentation medium used.
    Type: Application
    Filed: June 15, 2012
    Publication date: December 19, 2013
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Maria C. Leana, Brian G. Lefebvre
  • CONTAMINANT CONTROL IN ZYMOMONAS FERMENTATION USING HOP ACIDS
    Publication number: 20130337520
    Abstract: Contamination was controlled in fermentations using Zymomonas mobilis as the biocatalyst, without negative impact on fermentation production, by the addition of hop acids. The effective concentration of hop acids was found to be dependent upon the type of fermentation medium used.
    Type: Application
    Filed: June 15, 2012
    Publication date: December 19, 2013
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: George C. Fox, Maria C. Leana, Brian G. Lefebvre