Patents by Inventor Louis Clark

Louis Clark 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).

  • Publication number: 20130040352
    Abstract: The disclosure relates to methods of producing fatty alcohols from recombinant host cells comprising genes encoding heterologous fatty acyl-CoA reductase (FAR) enzymes. The disclosure further relates to FAR enzymes and functional fragments thereof derived from marine bacterium and particularly marine gamma proteobacterium such as Marinobacter and Oceanobacter; polynucleotides encoding the FAR enzymes and vectors and host cells comprising the same.
    Type: Application
    Filed: June 12, 2012
    Publication date: February 14, 2013
    Applicant: CODEXIS, INC.
    Inventors: Robert McDaniel, Behnaz Behrouzian, Louis Clark, Douglas Hattendorf, Fernando Valle
  • Patent number: 8357523
    Abstract: The invention provides variants of the Azospirillum irakense CelA ?-glucosidase that have improve ?-glucosidase activity, particularly improved thermoactivity, compared to the wild type enzyme. The invention further provides related polynucleotides, vectors, host cell, and methods for making and using the variants.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: January 22, 2013
    Assignee: Codexis, Inc.
    Inventors: Sally Rhiannon Postlethwaite, Louis Clark, Catherine M. Cho
  • Publication number: 20120276594
    Abstract: The present invention relates to cellobiohydrolase variants having improved thermostability and/or thermoactivity in comparison to wild-type Myceliophthora thermophila CBH2b.
    Type: Application
    Filed: April 27, 2012
    Publication date: November 1, 2012
    Applicant: Codexis, Inc.
    Inventors: Rama Voladri, Xiyun Zhang, Sachin Patil, David Elgart, Gregory Miller, Louis Clark, Kui Chan
  • Patent number: 8298795
    Abstract: The invention provides recombinant GH61 proteins obtained from Myceliophtora thermophila, and nucleic acids that encode such proteins. The invention also provides protein fractions isolated from M. thermophila supernatant that have GH61 protein activity. These preparations can be used to increase yield of products from reactions in which a cellulose-containing substrate undergoes saccharification by one or more cellulase enzymes, such as endoglucanase, ?-glucosidase, or cellobiohydrolase. Combinations of GH61 protein and cellulases can be used to break down cellulosic biomass into fermentable sugars in the production of ethanol.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: October 30, 2012
    Assignee: Codexis, Inc.
    Inventors: Jie Yang, Louis Clark, Onorato Campopiano, Kripa Rao, Lorand Szabo, Janos Torok, Dipnath Baidyaroy
  • Publication number: 20120220002
    Abstract: The present disclosure provides engineered halohydrin dehalogenase (HHDH) polypeptides having improved enzyme properties as compared to the wild-type HHDH enzyme HheC and other reference engineered HHDH polypeptides. Also provided are polynucleotides encoding the engineered HHDH enzymes, host cells capable of expressing the engineered HHDH enzymes, and methods of using the engineered HHDH enzymes to synthesize a variety of chiral compounds including chiral epoxides and chiral alcohols.
    Type: Application
    Filed: April 20, 2012
    Publication date: August 30, 2012
    Applicant: CODEXIS, INC.
    Inventors: Erik De Vries, Louis Clark, Scott McVicar, Erika Segraves, Shiwei Song, Kheng Lin Tan
  • Publication number: 20120190076
    Abstract: The invention relates to expression of a recombinant C1 ?-glucosidase. The invention also provides methods for producing a fermentable sugar from cellobiose by contacting celiobiose with a recombinant host cell comprising a polynucleotide sequence encoding C1 ?-glucosidase, operably linked to heterologous promoter, under conditions in which ?-glucosidase is expressed and secreted by the cell and the cellobiose is enzymatically converted by said ?-glucosidase to glucose. Methods of the invention may be used for conversion of a biomass substrate to a fermentable sugar, and ultimately to ethanol or other biofuel.
    Type: Application
    Filed: September 30, 2010
    Publication date: July 26, 2012
    Applicant: Codexis, Inc.
    Inventors: Louis Clark, Dipnath Baidyaroy, Lorand Szabo
  • Patent number: 8216815
    Abstract: The disclosure relates to methods of producing fatty alcohols from recombinant host cells comprising genes encoding heterologous fatty acyl-CoA reductase (FAR) enzymes. The disclosure further relates to FAR enzymes and functional fragments thereof derived from marine bacterium and particularly marine gamma proteobacterium such as Marinobacter and Oceanobacter; polynucleotides encoding the FAR enzymes and vectors and host cells comprising the same.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: July 10, 2012
    Assignee: Codexis, Inc.
    Inventors: Robert McDaniel, Behnaz Behrouzian, Louis Clark, Douglas Hattendorf, Fernando Valle
  • Publication number: 20120165562
    Abstract: This invention provides microbial organisms, particularly yeasts such as Yarrowia lipolytica, that have one or more disrupted genes. The gene disruption(s) may yield improved production of fatty acyl-CoA derivatives.
    Type: Application
    Filed: December 19, 2011
    Publication date: June 28, 2012
    Applicant: Codexis, Inc.
    Inventors: Douglas A. Hattendorf, Jennifer L. Shock, Louis Clark
  • Patent number: 8187856
    Abstract: The present disclosure provides engineered halohydrin dehalogenase (HHDH) polypeptides having improved enzyme properties as compared to the wild-type HHDH enzyme HheC and other reference engineered HHDH polypeptides. Also provided are polynucleotides encoding the engineered HHDH enzymes, host cells capable of expressing the engineered HHDH enzymes, and methods of using the engineered HHDH enzymes to synthesize a variety of chiral compounds including chiral epoxides and chiral alcohols.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: May 29, 2012
    Assignee: Codexis, Inc.
    Inventors: Erik De Vries, Louis Clark, Scott McVicar, Erika Segraves, Shiwei Song, Kheng Lin Tan
  • Publication number: 20120083019
    Abstract: The invention provides recombinant GH61 proteins obtained from Myceliophtora thermophila, and nucleic acids that encode such proteins. The invention also provides protein fractions isolated from M. thermophila supernatant that have GH61 protein activity. These preparations can be used to increase yield of products from reactions in which a cellulose-containing substrate undergoes saccharification by one or more cellulase enzymes, such as endoglucanase, ?-glucosidase, or cellobiohydrolase. Combinations of GH61 protein and cellulases can be used to break down cellulosic biomass into fermentable sugars in the production of ethanol.
    Type: Application
    Filed: August 22, 2011
    Publication date: April 5, 2012
    Applicant: Codexis, Inc.
    Inventors: Dipnath Baidyaroy, Louis Clark, Onorato Campopiano, Kripa Rao, Lorand Szabo, Janos Torok
  • Publication number: 20120077216
    Abstract: The invention relates to recombinantly produced ?-Glucosidase Variants with enhanced thermoactivity compared to naturally occurring proteins. The invention also provides methods for producing a variant ?-glucosidase polypeptide with improved thermoactivity by identifying performance sensitive positions in a target ?-glucosidase polypeptide and substituting the residue at that position with a thermoactivity enhancing residue.
    Type: Application
    Filed: June 16, 2010
    Publication date: March 29, 2012
    Applicant: Codexis, Inc.
    Inventors: Xiyun Zhang, Jie Yang, Dipnath Baidyaroy, Sally Rhiannon Postlethwaite, Attila Andor, Louis Clark, Lisa M. Newman
  • Publication number: 20120045793
    Abstract: The present invention provides promoters derived from a filamentous fungus. These promoters have application in the fields of molecular biology, microbiology, fungal genetics and production of biofuels and other products.
    Type: Application
    Filed: August 22, 2011
    Publication date: February 23, 2012
    Applicant: CODEXIS, INC.
    Inventors: Jennifer L. Shock, Louis Clark
  • Publication number: 20120021469
    Abstract: The disclosure relates to engineered amidase polypeptides and processes of using the polypeptides for chiral resolution of amino acid amide compounds. The disclosure further relates to the polynucleotides that encode the engineered amidase polypeptides and related vectors, host cells, and methods for making the engineered amidase polypeptides.
    Type: Application
    Filed: March 26, 2010
    Publication date: January 26, 2012
    Applicant: CODEXIS, INC.
    Inventors: Owen Gooding, Robert J. Jones, Gjalt Huisman, Jie Yang, Louis Clark
  • Publication number: 20120015408
    Abstract: The invention provides variants of the Thermoanaerobacter brockii CglT beta-glucosidase that have improve beta-glucosidase activity compared to the wild type enzyme. The invention also provides polynucleotides that encode the variants, as well as methods of producing the variants, enzyme compositions comprising the variants, and methods for using the variants in industrial applications.
    Type: Application
    Filed: February 26, 2010
    Publication date: January 19, 2012
    Applicant: CODEXIS, INC.
    Inventors: Dipnath Baidyaroy, Louis Clark, Lisa M. Newman, Charlene Ching
  • Publication number: 20120009640
    Abstract: The present disclosure provides methods useful for producing fatty alcohol compositions from recombinant host cells. The disclosure further provides variant fatty acyl-CoA reductase (FAR) enzymes, polynucleotides encoding the variant FAR enzymes, and vectors and host cells comprising the same.
    Type: Application
    Filed: June 28, 2011
    Publication date: January 12, 2012
    Applicant: Codexis, Inc.
    Inventors: Behnaz Behrouzian, Louis Clark, Yihui Zhu, Michael Clay, Kristian Karlshoej
  • Publication number: 20110234395
    Abstract: An apparatus used for reducing the incidence of aspiration in patients using a two-axis inclinometer is disclosed. The apparatus uses a two-axis inclinometer that is attached in the region of the patient's upper body to measure the absolute angular elevation of the patient's upper body, which is then transmitted to a display or other output device. In one embodiment, the instrument can be mounted to the head of a bed in a plurality of orientations and accurately measure the absolute angular elevation of the patient's upper body. In other embodiments the absolute angular elevation of the patient's upper body information is processed and transmitted to the nurses' station or to a data recorder. The disclosure also relates to a method for measuring the physical orientation of a patient, using such two-axis inclinometer apparatus.
    Type: Application
    Filed: March 28, 2011
    Publication date: September 29, 2011
    Applicant: EGRESSON, LLC
    Inventors: Michael David Johnson, Robert Louis Clark, JR.
  • Publication number: 20110124058
    Abstract: The present invention provides compositions and methods for the expression of recombinant ?-glucosidase variants, as well as their use in the production of fermentable sugars from cellulosic biomass.
    Type: Application
    Filed: November 19, 2010
    Publication date: May 26, 2011
    Applicant: CODEXIS, INC.
    Inventors: Dipnath Baidyaroy, Louis Clark, Lisa M. Newman
  • Patent number: 7943759
    Abstract: The invention is directed to 3-?-D-ribofuranosylthiazolo[4,5-d]pyrimidine nucleosides and pharmaceutical compositions containing such compounds that have immunomodulatory activity. The invention is also directed to the therapeutic or prophylactic use of such compounds and compositions, and to methods of treating diseases and disorders described herein, by administering effective amounts of such compounds.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: May 17, 2011
    Assignee: Anadys Pharmaceuticals, Inc.
    Inventors: Devron R. Averett, Stephen E. Webber, Joseph R. Lennox, Erik J. Rueden, David Louis Clark, Alan Xin Xiang
  • Patent number: 7934321
    Abstract: The invention relates to a form of a tilt switch that solves the problem of poor electrical contact, excessive/unpredictable hysteresis, high contact resistance, short life and/or electrical bounce. The tilt switch uses conventional ball-in-tube construction and adds a graphite powder film to all electrically conductive surfaces in the switch. This non-mercury tilt switch provides additional features such as enhanced electrical contact, reduced or eliminated hysteresis, lowered contact resistance, increased contact life and eliminates electrical bounce.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: May 3, 2011
    Assignee: Egresson, LLC
    Inventors: Michael David Johnson, Robert Louis Clark, Jr.
  • Publication number: 20110000125
    Abstract: The disclosure relates to methods of producing fatty alcohols from recombinant host cells comprising genes encoding heterologous fatty acyl-CoA reductase (FAR) enzymes. The disclosure further relates to FAR enzymes and functional fragments thereof derived from marine bacterium and particularly marine gamma proteobacterium such as Marinobacter and Oceanobacter; polynucleotides encoding the FAR enzymes and vectors and host cells comprising the same.
    Type: Application
    Filed: June 29, 2010
    Publication date: January 6, 2011
    Applicant: CODEXIS, INC.
    Inventors: Robert McDaniel, Behnaz Behrouzian, Louis Clark, Douglas Hattendorf, Fernando Valle