Patents by Inventor Mark Allen Andrews

Mark Allen Andrews 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).

  • THICKENED COMPOSITIONS COMPRISING CROSSLINKED POLYMERS CONTAINING BIOMASS DERIVED MATERIALS
    Publication number: 20150191560
    Abstract: Novel, crosslinked polymers using biomass derived materials, such as aldaric acids and derivatives, are provided. The polymers can be used as hydrogels and in antimicrobial compositions.
    Type: Application
    Filed: January 8, 2014
    Publication date: July 9, 2015
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: MARK ALLEN ANDREWS, GARRET D. FIGULY, HENRY KEITH CHENAULT
  • HYDROGELS COMPRISING CROSSLINKED POLYMERS CONTAINING BIOMASS DERIVED MATERIALS
    Publication number: 20140212372
    Abstract: Novel, crosslinked polymers using biomass derived materials, such as aldaric acids and derivatives, are provided. The polymers can be used as hydrogels and in antimicrobial compositions.
    Type: Application
    Filed: December 4, 2013
    Publication date: July 31, 2014
    Applicant: E I DU PONT DE DEMOURS AND COMPANY
    Inventors: MARK ALLEN ANDREWS, Garret D. Figuly, Henry Keith Chenault
  • ANTIMICROBIAL CROSSLINKED POLYMERS CONTAINING BIOMASS DERIVED MATERIALS
    Publication number: 20140200314
    Abstract: Novel, crosslinked polymers using biomass derived materials, such as aldaric acids and derivatives, are provided. The polymers can be used as hydrogels and in antimicrobial compositions.
    Type: Application
    Filed: January 8, 2014
    Publication date: July 17, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: MARK ALLEN ANDREWS, Garret D. Figuly, Henry Keith Chenault
  • COMPOSITIONS SUITABLE FOR USE IN PERSONAL CARE PRODUCTS COMPRISING CROSSLINKED POLYMERS CONTAINING BIOMASS DERIVED MATERIALS
    Publication number: 20140128552
    Abstract: Novel, crosslinked polymers using biomass derived materials, such as aldaric acids and derivatives, are provided. The polymers can be used as hydrogels and in antimicrobial compositions.
    Type: Application
    Filed: January 8, 2014
    Publication date: May 8, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Mark Allen Andrews, Garret D. Figuly, Henry Keith Chenault
  • EMULSIFIED COMPOSITIONS COMPRISING CROSSLINKED POLYMERS CONTAINING BIOMASS DERIVED MATERIALS
    Publication number: 20140121318
    Abstract: Novel, crosslinked polymers using biomass derived materials, such as aldaric acids and derivatives, are provided. The polymers can be used as hydrogels and in antimicrobial compositions.
    Type: Application
    Filed: January 8, 2014
    Publication date: May 1, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: MARK ALLEN ANDREWS, GARRET D. FIGULY, HENRY KEITH CHENAULT
  • Crosslinked polymers containing biomass derived materials
    Patent number: 8637610
    Abstract: Novel, crosslinked polymers using biomass derived materials, such as aldaric acids and derivatives, are provided. The polymers can be used as hydrogels and in antimicrobial compositions.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: January 28, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Mark Allen Andrews, Garret D Figuly, Henry Keith Chenault
  • CROSSLINKED POLYMERS CONTAINING BIOMASS DERIVED MATERIALS
    Publication number: 20130303705
    Abstract: Novel, crosslinked polymers using biomass derived materials, such as aldaric acids and derivatives, are provided. The polymers can be used as hydrogels and in antimicrobial compositions.
    Type: Application
    Filed: July 16, 2013
    Publication date: November 14, 2013
    Inventors: MARK ALLEN ANDREWS, Garret D. Figuly, Henry Keith Chenault
  • Crosslinked polymers containing biomass derived materials
    Patent number: 8519058
    Abstract: Novel, crosslinked polymers using biomass derived materials, such as aldaric acids and derivatives, are provided. The polymers can be used as hydrogels and in antimicrobial compositions.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: August 27, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Mark Allen Andrews, Henry Keith Chenault, Garret D. Figuly
  • Preparation of crosslinked polymers containing biomass derived materials
    Patent number: 8426528
    Abstract: Processes for preparing crosslinked polymers using biomass derived materials, such as aldaric acids and derivatives, are provided. The polymers can be used as hydrogels.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: April 23, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Mark Allen Andrews, Garret D. Figuly, Henry Keith Chenault
  • Alpha, omega-difunctional aldaramides
    Patent number: 7790926
    Abstract: Alpha, omega-difunctional aldaramides, in particular diaminoaldaramides, dihydroxyaldaramides, bis(alkoxycarbonylalkyl)aldaramides, and bis(carboxyalkyl)aldaramides, and processes for preparing the aldaramides are provided.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: September 7, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mark Allen Andrews, Henry Keith Chenault, Garret D. Figuly
  • Process for preparing fluorinated alkyl carboxylate esters
    Patent number: 7579498
    Abstract: A process for preparing fluorinated alkyl carboxylate esters comprises reaction of a silver carboxylate or silver carboxylate precursor, such as silver (I) iodide with a fluorinated alkyl iodide and a carboxylic acid. Preferably the fluorinated alkyl iodide has the general formula CF3(CF2)nCH2CH2I, wherein n is an integer in the range of from 1 to 29 and the carboxylic acid is acetic acid, acrylic acid or methacrylic acid.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: August 25, 2009
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mark Allen Andrews, Alexander Borisovich Shtarov, Joseph Norman Hockman
  • ALPHA, OMEGA-DIFUNCTIONAL ALDARAMIDES
    Publication number: 20080177050
    Abstract: Alpha, omega-difunctional aldaramides, in particular diaminoaldaramides, dihydroxyaldaramides, bis(alkoxycarbonylalkyl)aldaramides, and bis(carboxyalkyl)aldaramides, and processes for preparing the aldaramides are provided.
    Type: Application
    Filed: January 31, 2008
    Publication date: July 24, 2008
    Inventors: Mark Allen Andrews, Henry Keith Chenault, Garret D. Figuly
  • PROCESSES FOR PREPARING POLYMERS USING ALPHA,OMEGA-DIFUNCTIONAL ALDARAMIDES
    Publication number: 20080146768
    Abstract: Processes using alpha, omega-difunctional aldaramides as monomers and crosslinkers are disclosed. The processes can be used to form polymers, particularly crosslinked polymers.
    Type: Application
    Filed: January 15, 2008
    Publication date: June 19, 2008
    Inventors: Mark Allen Andrews, Henry Keith Chenault, Garret D. Figuly
  • Alpha, omega-difunctional aldaramides
    Patent number: 7351862
    Abstract: Alpha, omega-difunctional aldaramides, in particular diaminoaldaramides, dihydroxyaldaramides, bis(alkoxycarbonylalkyl)aldaramides, and bis(carboxyalkyl)aldaramides, and processes for preparing the aldaramides are provided.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: April 1, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Mark Allen Andrews, Henry Keith Chenault, Garret D. Figuly
  • Process for the manufacture of anhydro sugar alcohols with the assistance of a gas purge
    Patent number: 6689892
    Abstract: This invention concerns a process for the manufacture of anhydro- and dianhydro- hexitols, pentitols, and tetritols by the dehydration of sugar alcohols (alditols) in the presence of a dehydration catalyst and with the assistance of an inert gas sparge.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: February 10, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mark Allen Andrews, Kamlesh Kumar Bhatia, Paul Joseph Fagan
  • Process for the manufacture of anhydro sugar alcohols with the assistance of a gas purge
    Publication number: 20020028959
    Abstract: This invention concerns a process for the manufacture of anhydro- and dianhydro- hexitols, pentitols, and tetritols by the dehydration of sugar alcohols (alditols) in the presence of a dehydration catalyst and with the assistance of an inert gas sparge.
    Type: Application
    Filed: May 24, 2001
    Publication date: March 7, 2002
    Inventors: Mark Allen Andrews, Kamlesh Kumar Bhatia, Paul Joseph Fagan