Patents by Inventor Christopher Hill

Christopher Hill 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: 8236551
    Abstract: The present application provides genetically modified fungal organisms that produce enzyme mixtures exhibiting enhanced hydrolysis of cellulosic material to glucose, enzyme mixtures produced by the genetically modified fungal organisms, and processes for producing glucose from cellulose using such enzyme mixtures.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: August 7, 2012
    Assignee: Codexis, Inc.
    Inventors: Ish Kumar Dhawan, Dipnath Baidyaroy, Andrew Shaw, Oleh Tanchak, Christopher Hill, Chengsong Liu, Amala Chokshi, Brian R. Scott
  • Publication number: 20120107881
    Abstract: The present application provides genetically modified fungal organisms that produce enzyme mixtures exhibiting enhanced hydrolysis of cellulosic material to glucose, enzyme mixtures produced by the genetically modified fungal organisms, and processes for producing glucose from cellulose using such enzyme mixtures.
    Type: Application
    Filed: November 1, 2011
    Publication date: May 3, 2012
    Applicant: CODEXIS, INC.
    Inventors: Ish Kumar Dhawan, Dipnath Baidyaroy, Andrew Shaw, Oleh Tanchak, Christopher Hill, Chengsong Liu, Amala Chokshi, Brian R. Scott
  • Patent number: 8143049
    Abstract: Provided are modified beta-glucosidase enzymes, derived from the Trichoderma reesei Cel3A beta-glucosidase, that exhibit improved stability at low pH, low pH and high aeration, low pH and high agitation, or low pH and elevated temperature. Also provided are genetic constructs comprising nucleotide sequences encoding for modified beta-glucosidase enzymes, methods for the production of modified beta-glucosidase enzymes from host strains and the use of the modified beta-glucosidase enzymes in the hydrolysis of cellulose.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: March 27, 2012
    Assignee: Iogen Energy Corporation
    Inventors: Christopher Hill, James Lavigne, Martine Whissel, John J. Tomashek
  • Patent number: 8017373
    Abstract: An enzyme mixture for the enzymatic hydrolysis of a pretreated lignocellulosic feedstock to soluble sugars is provided. Also provided is a process for hydrolyzing a pretreated lignocellulosic feedstock with an enzyme mixture. The enzymatic hydrolysis comprises adding a cellulase enzyme mixture to a pretreated lignocellulosic feedstock. The cellulase enzyme mixture comprises a primary cellulase mixture of CBH1 and CBH2, and EG1 and EG2. The CBH1 and CBH2 being present at greater than or equal to 55% and less than 85% of the primary cellulase mixture. Furthermore, CBH2 is present at a fraction relative to CBH1 and CBH2, and EG2 is present at a fraction relative to the EG1 and EG2.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: September 13, 2011
    Assignee: Iogen Energy Corporation
    Inventors: Christopher Hill, Brian Scott, John Tomashek
  • Patent number: 8017361
    Abstract: Provided is an enzyme mixture for hydrolyzing a pretreated lignocellulosic feedstock to soluble sugars. The enzyme mixture comprises EG4 at a fractional concentration (fEG4) of about 0.25 to about 0.83 (w/w), Swollenin at a fractional concentration (fSwo1) of about 0 to about 0.66 (w/w), and Cip1 at a fractional concentration (fCip1) of 0 to about 0.33 measured relative to all accessory enzymes present in the enzyme mixture. Also provided are processes for converting a pretreated lignocellulosic feedstock to soluble sugars using the enzyme mixtures, and methods of using and producing such enzyme mixtures.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: September 13, 2011
    Assignee: Iogen Energy Corporation
    Inventors: Brian R. Scott, Christopher Hill, John Tomashek, Chengsong Liu
  • Publication number: 20100093040
    Abstract: Provided are modified beta-glucosidase enzymes, derived from the Trichoderma reesei Cel3A beta-glucosidase, that exhibit improved stability at low pH, low pH and high aeration, low pH and high agitation, or low pH and elevated temperature. Also provided are genetic constructs comprising nucleotide sequences encoding for modified beta-glucosidase enzymes, methods for the production of modified beta-glucosidase enzymes from host strains and the use of the modified beta-glucosidase enzymes in the hydrolysis of cellulose.
    Type: Application
    Filed: August 31, 2009
    Publication date: April 15, 2010
    Applicant: IOGEN ENERGY CORPORATION
    Inventors: Christopher Hill, James Lavigne, Martine Whissel, John J. Tomashek
  • Patent number: 7658570
    Abstract: A remotely actuated manhole system is disclosed having a cover that is pivotable relative to a frame secured with a collar on a bulk carrier, the cover being pivotable around a substantially vertical axis between and to open and closed positions. In the closed position covering an opening to a compartment in the bulk carrier, the cover is shiftable vertically between and to locked and unlocked positions by an inflatable seal member below the cover. The manhole system includes catches that prevent over-rotation of the cover from the open position to the closed position, and the catches engage in the locked position by the vertical upward movement of the cover. The inflation of the seal member and the pivoting of the cover are remotely actuated.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: February 9, 2010
    Assignee: Delaware Captial Formation, Inc.
    Inventors: Simon Christopher Hill, David Stewart Miller
  • Publication number: 20100027552
    Abstract: Embodiments of the present invention provide a cloud gateway system, a cloud hypervisor system, and methods for implementing same. The cloud gateway system extends the security, manageability, and quality of service membrane of a corporate enterprise network into cloud infrastructure provider networks, enabling cloud infrastructure to be interfaced as if it were on the enterprise network. The cloud hypervisor system provides an interface to cloud infrastructure provider management systems and infrastructure instances that enables existing enterprise systems management tools to manage cloud infrastructure substantially the same as they manage local virtual machines via common server hypervisor APIs.
    Type: Application
    Filed: June 19, 2009
    Publication date: February 4, 2010
    Applicant: ServiceMesh, Inc.
    Inventor: Duncan Christopher Hill
  • Publication number: 20090061484
    Abstract: Provided is an enzyme mixture for hydrolyzing a pretreated lignocellulosic feedstock to soluble sugars. The enzyme mixture comprises EG4 at a fractional concentration (fEG4) of about 0.25 to about 0.83 (w/w), Swollenin at a fractional concentration (fSwo1) of about 0 to about 0.66 (w/w), and Cip1 at a fractional concentration (fCip1) of 0 to about 0.33 measured relative to all accessory enzymes present in the enzyme mixture. Also provided are processes for converting a pretreated lignocellulosic feedstock to soluble sugars using the enzyme mixtures, and methods of using and producing such enzyme mixtures.
    Type: Application
    Filed: August 29, 2008
    Publication date: March 5, 2009
    Applicant: IOGEN ENERGY CORPORATION
    Inventors: Brian R. Scott, Christopher Hill, John Tomashek, Chengsong Liu
  • Publication number: 20080202180
    Abstract: The present invention provides a pin and tumbler cylinder lock and a retrofitted cylinder lock which minimizes unauthorized openings of the lock by bumping. The cylinder lock utilizes specially designed driver pins which are correlated in size to the largest possible stack height of the tumbler pins with a bump key inserted in the plug portion of the lock and the shear line height of the lock. All the driver pins are about the same height and preferably symmetrical with a lip on each end. The invention also provides a method for retrofitting existing locks by removing at least one of the driver pins and replacing the removed driver pin or pins with the driver pins of the invention.
    Type: Application
    Filed: February 22, 2007
    Publication date: August 28, 2008
    Applicant: SARGENT MANUFACTURING COMPANY
    Inventors: Darren C. Eller, Ryan Piantek, Evaldas Malinauskas, James Galarneau, David Steele, Christopher Hill
  • Publication number: 20080078127
    Abstract: A remotely actuated manhole system is disclosed having a cover that is pivotable relative to a frame secured with a collar on a bulk carrier, the cover being pivotable around a substantially vertical axis between and to open and closed positions. In the closed position covering an opening to a compartment in the bulk carrier, the cover is shiftable vertically between and to locked and unlocked positions by an inflatable seal member below the cover. The manhole system includes catches that prevent over-rotation of the cover from the open position to the closed position, and the catches engage in the locked position by the vertical upward movement of the cover. The inflation of the seal member and the pivoting of the cover are remotely actuated.
    Type: Application
    Filed: October 2, 2006
    Publication date: April 3, 2008
    Inventors: Simon Christopher Hill, David Stewart Miller
  • Publication number: 20080057541
    Abstract: An enzyme mixture for the enzymatic hydrolysis of a pretreated lignocellulosic feedstock to soluble sugars is provided. Also provided is a process for hydrolyzing a pretreated lignocellulosic feedstock with an enzyme mixture. The enzymatic hydrolysis comprises adding a cellulase enzyme mixture to a pretreated lignocellulosic feedstock. The cellulase enzyme mixture comprises a primary cellulase mixture of CBH1 and CBH2, and EG1 and EG2. The CBH1 and CBH2 being present at greater than or equal to 55% and less than 85% of the primary cellulase mixture. Furthermore, CBH2 is present at a fraction relative to CBH1 and CBH2, and EG2 is present at a fraction relative to the EG1 and EG2.
    Type: Application
    Filed: August 29, 2007
    Publication date: March 6, 2008
    Applicant: IOGEN ENERGY CORPORATION
    Inventors: Christopher Hill, Brian Scott, John Tomashek
  • Publication number: 20070262634
    Abstract: A suspended pixelated seating structure provides ergonomic, adaptable seating support. The suspended pixelated seating structure includes multiple cooperative layers to maximize global comfort and support while enhancing adaptation to localized variations in a load, such as in the load applied when a person sits in a chair. The cooperative layers each use independent elements such as pixels, springs, support rails, and other elements to provide this adaptable comfort and support. The suspended pixelated seating structure also uses aligned material to provide a flexible yet durable suspended seating structure. Accordingly, the suspended pixelated seating structure provides maximum comfort for a wide range of body shapes and sizes.
    Type: Application
    Filed: May 12, 2006
    Publication date: November 15, 2007
    Inventors: Ryan Brill, Douglas VanDeRiet, John Aldrich, Christopher Hill, Andrew Kurrasch, James Slagh, Matthew Parkinson, Matthew Reed, Jeffrey Weber
  • Publication number: 20070089698
    Abstract: An added-motion hydraulic valve system is disclosed. The added-motion hydraulic valve system includes an engine valve actuator that causes movement of an engine valve, fluid that moves through a solenoid actuator valve, and a fluid actuator housing having a volume for receiving said fluid. The volume is disposed between the engine valve actuator and an engagement end of the engine valve. A lash adjuster assembly for a valve system is also disclosed. The lash adjuster assembly includes an actuator fluid housing and an added motion hydraulic lash adjuster disposed within the actuator fluid housing. According to an embodiment, the lash adjuster assembly includes a mechanical lash adjuster actuated by a cam arrangement.
    Type: Application
    Filed: September 11, 2006
    Publication date: April 26, 2007
    Applicant: Eaton Corporation
    Inventors: Dale Stretch, Christopher Hill, Edwin Lorenz
  • Patent number: 7180900
    Abstract: An improved system and technique for processing a communications session in a data communications system suitably includes the steps of receiving the communications session at a line interface card, embedding the communications session into an asynchronous transfer mode (ATM) virtual circuit at the line interface card, transporting the virtual circuit from the line interface card to a processor card via a backplane. The processor card suitably extracts the communications session from the virtual circuit, and processes the communications session as appropriate.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: February 20, 2007
    Assignee: Motorola, Inc.
    Inventors: Harold K. Williamson, Charles Christopher Hill, Brian A. Carr
  • Patent number: 7173304
    Abstract: A method is disclosed that may include forming a first layer of insulating material above a semiconducting substrate, forming an aluminum oxide layer above the first layer of insulating material, forming a plurality of spaced-apart dots of material on the aluminum oxide layer, forming a second layer of insulating material on portions of the aluminum oxide layer not covered by the spaced-apart dots of material, forming a conductive layer above the second layer of insulating material and the plurality of spaced-apart dots of material, and removing excess portions of the layer of conductive material and the second layer of insulating material.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: February 6, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Ronald A. Weimer, Christopher Hill
  • Publication number: 20060292893
    Abstract: A method for forming a semiconductor device comprises forming a dielectric layer over a semiconductor wafer substrate assembly having closely spaced regions, such as a memory transistor array, and widely spaced regions, such as a periphery. Under conditions specified, the dielectric layer forms to have a first thickness over the closely spaced regions and a second thickness over the widely spaced regions. The second thickness is much thinner than the first thickness and dielectric over the widely spaced regions may be etched away with a blanket etch which leaves the majority of the dielectric layer over the closely spaced regions.
    Type: Application
    Filed: August 31, 2006
    Publication date: December 28, 2006
    Inventor: Christopher Hill
  • Publication number: 20060279061
    Abstract: A fork leg cap for the attachment of a wheel to a fork assembly so when the wheel is attached to the fork leg, the mounting studs and nuts holding the fork leg cap in place against the fork leg end are hidden from view making the fork leg appear as a continuous solid piece. Particularly this invention relates to the attachment of the front wheel of a motorcycle and allows all the parts showing on the fork assembly to be chrome since the mounting hardware which secures the front wheel to the fork leg are hidden making the end of each fork appear to be continuous piece.
    Type: Application
    Filed: June 14, 2005
    Publication date: December 14, 2006
    Inventor: Christopher Hill
  • Publication number: 20060273376
    Abstract: A method is disclosed that may include forming a first layer of insulating material above a semiconducting substrate, forming an aluminum oxide layer above the first layer of insulating material, forming a plurality of spaced-apart dots of material on the aluminum oxide layer, forming a second layer of insulating material on portions of the aluminum oxide layer not covered by the spaced-apart dots of material, forming a conductive layer above the second layer of insulating material and the plurality of spaced-apart dots of material, and removing excess portions of the layer of conductive material and the second layer of insulating material.
    Type: Application
    Filed: June 6, 2005
    Publication date: December 7, 2006
    Inventors: Ronald Weimer, Christopher Hill
  • Publication number: 20060240646
    Abstract: A method of reducing the amount of halogenated materials in a halogen-containing environment. The method comprises introducing an aluminum compound into the halogen-containing environment, reacting the aluminum compound with the halogenated material to form a gaseous reaction product, and removing the gaseous reaction product from the environment. The aluminum compound may be a trialkylaluminum compound, an alane, an alkylaluminum hydride, an alkylaluminum halide, an alkylaluminum sesquihalide, or an aluminum sesquihalide. The aluminum compound may alternatively form a solid aluminum product, which is deposited on a surface associated with the halogen-containing environment or onto a semiconductor disposed therewithin. The halogenated material is incorporated into the solid aluminum product, forming an inert film within which the halogenated material is trapped.
    Type: Application
    Filed: June 21, 2006
    Publication date: October 26, 2006
    Inventors: Demetrius Sarigiannis, Cem Basceri, Christopher Hill, Garo Derderian