Patents by Inventor Linda L. Hnatow

Linda L. Hnatow 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).

  • Identification, characterization, and application of (LH4:15), useful in microbially enhanced oil release
    Patent number: 8357526
    Abstract: The present disclosure relates to isolation and identification of unique Pseudomonas stutzeri strains that can grow on crude oil under denitrifying conditions and are useful in oil recovery.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: January 22, 2013
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Sharon Jo Keeler, Robert D. Fallon, Edwin R. Hendrickson, Linda L. Hnatow, Scott Christopher Jackson, Michael P. Perry
  • Identification, characterization, and application of (LH4:18), useful in microbially enhanced oil release
    Patent number: 7776795
    Abstract: The present disclosure relates to isolation, identification and application of Shewanella putrefaciens strain LH4:18 that grows, under denitrifying anaerobic conditions, on crude oil as the sole carbon source. This organism assists in oil release from substrate in reservoir simulations when grown on either lactate or peptone as a carbon source. Shewanella putrefaciens strain LH4:18 can be used alone or in concert with other microorganisms to improve oil recovery.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: August 17, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Sharon Jo Keeler, Edwin R. Hendrickson, Linda L. Hnatow, Scott Christopher Jackson
  • Method for identification of novel anaerobic denitrifying bacteria utilizing petroleum components as sole carbon source
    Patent number: 7740063
    Abstract: A method for the phylogenetic identification of indigenous anaerobic denitrifying bacterial species in an oil well is described. The method avoids the process of enrichment of microbial samples.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: June 22, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Robert D. Fallon, Linda L. Hnatow, Scott Christopher Jackson, Sharon Jo Keeler
  • METHOD FOR IDENTIFICATION OF NOVEL ANAEROBIC DENITRIFYING BACTERIA UTILIZING PETROLEUM COMPONENTS AS SOLE CARBON SOURCE
    Publication number: 20100044031
    Abstract: A method for the phylogenetic identification of indigenous anaerobic denitrifying bacterial species in an oil well is described. The method avoids the process of enrichment of microbial samples.
    Type: Application
    Filed: August 20, 2008
    Publication date: February 25, 2010
    Applicant: E. I. duPont de Nemours and Company
    Inventors: Robert D. Fallon, Linda L. Hnatow, Scott Christopher Jackson, Sharon Jo Keeler
  • IDENTIFICATION, CHARACTERIZATION, AND APPLICATION OF SHEWANELLA PUTREFACIENS (LH4:18), USEFUL IN MICROBIALLY ENHANCED OIL RELEASE
    Publication number: 20090260803
    Abstract: The present disclosure relates to isolation, identification and application of Shewanella putrefaciens strain LH4:18 that grows, under denitrifying anaerobic conditions, on crude oil as the sole carbon source. This organism assists in oil release from substrate in reservoir simulations when grown on either lactate or peptone as a carbon source. Shewanella putrefaciens strain LH4:18 can be used alone or in concert with other microorganisms to improve oil recovery.
    Type: Application
    Filed: April 18, 2008
    Publication date: October 22, 2009
    Applicant: E. I. DUPONT DE NEMOURS AND COMPANY
    Inventors: Sharon Jo Keeler, Edwin R. Hendrickson, Linda L. Hnatow, Scott Christopher Jackson
  • IDENTIFICATION, CHARACTERIZATION, AND APPLICATION OF PSEUDOMONAS STUTZERI (LH4:15), USEFUL IN MICROBIALLY ENHANCED OIL RELEASE
    Publication number: 20090263887
    Abstract: The present disclosure relates to isolation and identification of unique Pseudomonas stutzeri strains that can grow on crude oil under denitrifying conditions and are useful in oil recovery.
    Type: Application
    Filed: April 18, 2008
    Publication date: October 22, 2009
    Applicant: E. I. DUPONT DE NEMOURS AND COMPANY
    Inventors: Sharon Jo Keeler, Robert D. Fallon, Edwin R. Hendrickson, Linda L. Hnatow, Scott Christopher Jackson, Michael P. Perry
  • Process for recombinant expression and purification of antimicrobial peptides using periplasmic targeting signals as precipitable hydrophobic tags
    Patent number: 7579005
    Abstract: A process was developed for expressing antimicrobial peptides in a recombinant host cell that eliminates host cell toxicity and antimicrobial peptide degradation, as well as providing a process for rapid purification. Fusion proteins comprising a periplasmic targeting signal, cleavage site, and antimicrobial peptides provide the basis for this process which produces antimicrobial peptides that may be used in antimicrobial compositions and articles.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: August 25, 2009
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Sharon Jo Keeler, Sheryl M. Wolstenholme, Jodie L. Duke, Linda L. Hnatow
  • APPLICATION OF ANAEROBIC DENITRIFYING BACTERIA UTILIZING PETROLEUM COMPONENTS AS SOLE CARBON SOURCE FOR OIL
    Publication number: 20090082227
    Abstract: The invention describes application of pure culture microbial strains under denitrifying conditions for growth on crude oil thereby modifying crude oil properties to enhance its recovery.
    Type: Application
    Filed: August 20, 2008
    Publication date: March 26, 2009
    Inventors: Linda L. Hnatow, Sharon Jo Keeler