Patents by Inventor Louis D. Heerze

Louis D. Heerze 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).

  • Patent number: 9404051
    Abstract: The present invention relates to the bioupgrading of crude oil is directed to a process for decreasing the acidity of an acidic crude oil, comprising contacting an acidic crude oil with a mixture nitrogen containing compounds selected from the group comprising ammonia, ammonia hydroxide, amines and the salts thereof, and in the presence of lipase enzyme, under conditions of suitable temperature and pressure sufficient to form the corresponding amide. The resulting naphthenic acid derived amides can then be processed normally in a refinery using such processes as cracking or hydrotreating and converted to hydrocarbon, ammonia and carbon dioxide without causing damage to the refinery infrastructure. This enzyme process is done at reduced temperatures (40-60° C.) and pressures requiring less energy.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: August 2, 2016
    Assignee: Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Natural Resources
    Inventor: Louis D. Heerze
  • Patent number: 8980620
    Abstract: The present invention relates to the use of microorganisms (biocatalysts), or catalysts derived from these organisms (enzymes), to improve the quality of crude oil and bitumen as an attractive alternative to current upgrading methods. The invention identifies and characterizes the microorganism species, in particular, N. muscorum (UTEX 2209) and Kocuria rhizophilia (ATCC533), that have the capability to biochemically convert organic acids into chemical species that do not possess corrosive properties.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: March 17, 2015
    Assignee: Her Majesty the Queen in Right of Canada as Represented by the Minister of Natural Resources
    Inventors: Heather D. Dettman, Ryan Lister, Louis D. Heerze
  • Publication number: 20120034683
    Abstract: The present invention relates to the use of microorganisms (biocatalysts), or catalysts derived from these organisms (enzymes), to improve the quality of crude oil and bitumen as an attractive alternative to current upgrading methods. The invention identifies and characterizes the microorganism species, in particular, N. muscorum (UTEX 2209) and Kocuria rhizophilia (ATCC533), that have the capability to biochemically convert organic acids into chemical species that do not possess corrosive properties.
    Type: Application
    Filed: April 24, 2009
    Publication date: February 9, 2012
    Applicant: Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Natural Resources
    Inventors: Heather D. Dettman, Ryan Lister, Louis D. Heerze
  • Publication number: 20120028341
    Abstract: The present invention relates to the bioupgrading of crude oil is directed to a process for decreasing the acidity of an acidic crude oil, comprising contacting an acidic crude oil with a mixture nitrogen containing compounds selected from the group comprising ammonia, ammonia hydroxide, amines and the salts thereof, and in the presence of lipase enzyme, under conditions of suitable temperature and pressure sufficient to form the corresponding amide. The resulting naphthenic acid derived amides can then be processed normally in a refinery using such processes as cracking or hydrotreating and converted to hydrocarbon, ammonia and carbon dioxide without causing damage to the refinery infrastructure. This enzyme process is done at reduced temperatures (40-60° C.) and pressures requiring less energy.
    Type: Application
    Filed: April 14, 2009
    Publication date: February 2, 2012
    Inventor: Louis D. Heerze
  • Patent number: 6465435
    Abstract: This invention relates to prevention and/or treatment of antibiotic associated diarrhea, including Clostridium difficile associated diarrhea (CDAD), pseudomembranous colitis (PMC) and other conditions associated with C. difficile infection, using oligosaccharide compositions which bind C. difficile toxin B. More specifically, the invention concerns neutralization of C. difficile toxin B associated with such conditions.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: October 15, 2002
    Assignee: SYNSORB Biotech, Inc.
    Inventors: Louis D. Heerze, Glen D. Armstrong
  • Publication number: 20020054880
    Abstract: The present invention is directed to methods of suppressing inflammatory responses, inducing tolerance to an antigen, and suppressing cell adhesion, e.g., involved in metastasis, by the administration of lectin derived carbohydrate binding peptides or derivatives thereof, in particular, peptides capable of binding terminally linked &agr;-sialic acid(2→6)&bgr;Gal- and/or &agr;-sialic acid(2→3)&bgr;Gal-groups on structures or molecules comprising such groups. Pharmaceutical compositions containing such lectin derived carbohydrate binding peptides or derivatives thereof are also disclosed.
    Type: Application
    Filed: April 18, 2001
    Publication date: May 9, 2002
    Inventors: Louis D. Heerze, Glen D. Armstrong, Richard Smith
  • Patent number: 6358930
    Abstract: This invention relates to prevention and/or treatment of antibiotic associated diarrhea, including Clostridium difficile associated diarrhea (CDAD), pseudomembranous colitis (PMC) and other conditions associated with C. difficile infection, using oligosaccharide compositions which bind C. difficile toxin B. More specifically, the invention concerns neutralization of C. difficile toxin B associated with such conditions.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: March 19, 2002
    Assignee: Synsorb Biotech Inc.
    Inventors: Louis D. Heerze, Glen D. Armstrong
  • Patent number: 6245883
    Abstract: The present invention is directed to lectin derived carbohydrate binding peptides or derivatives thereof useful for suppressing inflammatory responses, inducing tolerance to an antigen, and suppressing cell adhesion, e.g., involved in metastasis. In particular, peptides capable of binding terminally linked &agr;-sialic acid(2-6)&bgr;Gal- and/or &agr;-sialic acid(2-3)&bgr;Gal-groups on structures or molecules comprising such groups are provided. Pharmaceutical compositions containing such lectin derived carbohydrate binding peptides are also disclosed.
    Type: Grant
    Filed: September 9, 1998
    Date of Patent: June 12, 2001
    Assignee: Alberta Research Council
    Inventors: Louis D. Heerze, Glen D. Armstrong, Richard Smith
  • Patent number: 6107282
    Abstract: This invention relates to prevention and/or treatment of antibiotic associated diarrhea, including Clostridium difficile associated diarrhea (CDAD), pseudomembranous colitis (PMC) and other conditions associated with C. difficile infection, using oligosaccharide compositions which bind C. difficile toxin B. More specifically, the invention concerns neutralization of C. difficile toxin B associated with such conditions.
    Type: Grant
    Filed: October 18, 1999
    Date of Patent: August 22, 2000
    Assignee: SYNSORB Biotech, Inc.
    Inventors: Louis D. Heerze, Glen D. Armstrong
  • Patent number: 6069137
    Abstract: This invention relates to treatment of traveller's diarrhea, including diarrhea caused by enterotoxigenic E. coli (ETEC), using oligosaccharide compositions which bind E. coli heat-labile toxin (LT) and/or one or more serotypes of enterotoxigenic E. coli organisms. More specifically, the invention concerns neutralization and removal of LT associated with traveller's diarrhea. This invention also relates to prevention of ETEC from colonizing the intestinal tract and inducing disease.
    Type: Grant
    Filed: April 30, 1998
    Date of Patent: May 30, 2000
    Assignee: Synsorb Biotech, Inc.
    Inventors: Louis D. Heerze, Glen D. Armstrong
  • Patent number: 6013635
    Abstract: This invention relates to prevention and/or treatment of antibiotic associated diarrhea, including Clostridium difficile associated diarrhea (CDAD), pseudomembranous colitis (PMC) and other conditions associated with C. difficile infection, using oligosaccharide compositions which bind C. difficile toxin B. More specifically, the invention concerns neutralization of C. difficile toxin B associated with such conditions.
    Type: Grant
    Filed: May 28, 1998
    Date of Patent: January 11, 2000
    Assignee: Synsorb Biotech, Inc.
    Inventors: Louis D. Heerze, Glen D. Armstrong
  • Patent number: 5939397
    Abstract: This invention relates to treatment of cholera and related conditions using oligosaccharide compositions which bind V. cholera toxin and/or one or more serotypes of the organism V. cholera. More specifically, the invention concerns neutralization and removal of V. cholera toxin and/or organisms from the intestinal tract.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: August 17, 1999
    Assignee: Synsorb Biotech, Inc.
    Inventors: Louis D. Heerze, Glen D. Armstrong
  • Patent number: 5891860
    Abstract: This invention relates to treatment of traveller's diarrhea, including diarrhea caused by enterotoxigenic Escherichia coli (ETEC), using an oligosaccharide-containing composition. The composition contains an oligosaccharide sequence covalently attached to a pharmaceutically acceptable solid, inert support through a non-peptidyl compatible linker arm. The oligosaccharide-containing composition binds E. coli heat-labile toxin (LT). More specifically, the invention concerns neutralization and removal of LT associated with traveller's diarrhea.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: April 6, 1999
    Assignee: Synsorb Biotech, Inc.
    Inventors: Louis D. Heerze, Glen D. Armstrong
  • Patent number: 5833990
    Abstract: The present invention is directed to methods of suppressing inflammatory responses, inducing tolerance to an antigen, and suppressing cell adhesion, e.g., involved in metastasis, by the administration of lectin derived carbohydrate binding peptides or derivatives thereof, in particular, peptides capable of binding terminally linked .alpha.-sialic acid(2.fwdarw.6).beta.Gal- and/or .alpha.-sialic acid(2.fwdarw.3).beta.Gal-groups on structures or molecules comprising such groups. Pharmaceutical compositions containing such lectin derived carbohydrate binding peptides or derivatives thereof are also disclosed.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: November 10, 1998
    Assignee: Alberta Research Council
    Inventors: Louis D. Heerze, Glen D. Armstrong, Richard Smith
  • Patent number: 5817633
    Abstract: This invention relates to treatment of cholera and related conditions using oligosaccharide compositions which bind V. cholerae toxin and/or one or more serotypes of the organism V. cholerae. More specifically, the invention concerns neutralization and removal of V. cholerae toxin and/or organisms from the intestinal tract.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: October 6, 1998
    Assignee: Synsorb Biotech, Inc.
    Inventors: Louis D. Heerze, Glen D. Armstrong
  • Patent number: 5811409
    Abstract: This invention relates to treatment of cholera and related conditions using oligosaccharide compositions which bind V. cholerae toxin and/or one or more serotypes of the organism V. cholerae. More specifically, the invention concerns neutralization and removal of V. cholerae toxin and/or organisms from the intestinal tract.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: September 22, 1998
    Assignee: Synsorb Biotech, Inc.
    Inventors: Louis D. Heerze, Glen D. Armstrong
  • Patent number: 5747040
    Abstract: The present invention is directed to methods of suppressing inflammatory responses, inducing tolerance to an antigen, and suppressing cell adhesion, e.g., involved in metastasis, by the administration of lectin derived carbohydrate binding peptides or derivatives thereof, in particular, peptides capable of binding terminally linked .alpha.-sialic acid(2.fwdarw.6).beta.Gal- and/or .alpha.-sialic acid(2.fwdarw.3).beta.Gal- groups on structures or molecules comprising such groups. Pharmaceutical compositions containing such lectin derived carbohydrate binding peptides or derivatives thereof are also disclosed.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: May 5, 1998
    Assignee: Alberta Research Council
    Inventors: Louis D. Heerze, Glen D. Armstrong, Richard Smith
  • Patent number: 5736143
    Abstract: The present invention is directed to methods of suppressing inflammatory responses, including tolerance to an antigen, and suppressing cell adhesion, e.g., involved in metastasis, by the administration of lectin derived carbohydrate binding peptides or derivatives thereof, in particular, peptides capable of binding terminally linked .alpha.-sialic acid (2.fwdarw.6).beta.Gal- and/or .alpha.-sialic acid(2.fwdarw.3).beta.Gal-groups on structures or molecules comprising such groups. Pharmaceutical compositions containing such lectin derived carbohydrate binding peptides or derivatives thereof are also disclosed.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: April 7, 1998
    Assignee: Alberta Research Council
    Inventors: Louis D. Heerze, Glen D. Armstrong, Richard Smith
  • Patent number: 5661131
    Abstract: This invention relates to treatment of cholera and related conditions using oligosaccharide compositions which bind V. cholerae toxin and/or one or more serotypes of the organism V. cholerae. More specifically, the invention concerns neutralization and removal of V. cholerae toxin and/or organisms from the intestinal tract.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: August 26, 1997
    Assignee: Synsorb Biotech, Inc.
    Inventors: Louis D. Heerze, Glen D. Armstrong
  • Patent number: 5637576
    Abstract: This invention relates to treatment of traveller's diarrhea, including diarrhea caused by enterotoxogenic Escherichia coli (ETEC), using an oligosaccharide-containing composition. The composition contains an oligosaccharide sequence covalently attached to a pharmaceutically acceptable solid, inert support through a non-peptidyl compatible linker arm. The oligosaccharide-containing composition binds E. coli heat-labile toxin (LT). More specifically, the invention concerns neutralization and removal of LT associated with traveller's diarrhea.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: June 10, 1997
    Assignee: Synsorb Biotech, Inc.
    Inventors: Louis D. Heerze, Glen D. Armstrong