Patents by Inventor Vijay Anand
Vijay Anand 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).
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Patent number: 8017820Abstract: The present invention is directed to a continuous process for pretreating a lignocellulosic feedstock. A feedstock slurry is provided, which has a solids concentration of 10% to 33% by weight. The feedstock slurry is pumped through a heating train of at least two stages, each stage including a pump to increase stage pressure and a direct steam injection to heat the feedstock slurry. Acid is also added to the feedstock slurry prior to the heating train, during a heating stage, or after leaving the heating train; the acid is added at a concentration of 0% to 12% weight of acid on weight of initial feedstock. A heated, acidified feedstock slurry is thus produced. The heated, acidified feedstock slurry is flowed through a pre-treatment reactor at a temperature of 160° C. to 280° C. for a time sufficient to increase efficiency of conversion of cellulose in the feedstock to glucose using cellulase enzymes.Type: GrantFiled: September 30, 2005Date of Patent: September 13, 2011Assignee: Iogen Energy CorporationInventors: Brian Foody, Vijay Anand, David Rea
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Patent number: 7993463Abstract: The present invention provides a method of producing xylose from lignocellulosic feedstock. The method comprises disrupting lignocellulosic feedstock; leaching the lignocellulosic feedstock by contacting the feedstock with at least one aqueous solution for a period greater than about 2 minutes to produce a leached feedstock and a leachate; removing the leachate from the leached feedstock; acidifying the leached feedstock to a pH between about 0.5 and about 3 to produce an acidified feedstock, and; reacting the acidified feedstock under conditions which disrupt fiber structure and hydrolyze a portion of hemicellulose and cellulose of the acidified feedstock, to produce a composition comprising xylose and a pretreated feedstock. The xylose may be purified from the pretreated feedstock or it may be converted to ethanol with the pretreated feedstock.Type: GrantFiled: January 31, 2007Date of Patent: August 9, 2011Assignee: Iogen Energy CorporationInventors: Robert Griffin, Colin Nicholson, Corinne Mott, Jeffrey S. Tolan, Vijay Anand
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Patent number: 7925979Abstract: A manufacturing/process control system information access provider architecture is disclosed. Manufacturing/process control system data provider flexibility is achieved through a user-configurable manufacturing/process control information portal server that comprises multiple selectable data provides (sources) and/or data types that a particular data provider accommodates. A user configures the portal server to deliver manufacturing/process control information associated with a controlled process environment, such as a food processing plant floor or an oil refinery reactor, to the user via a browser client over the Internet or a corporate intranet. Furthermore, an extensible architecture is provided that enables adding new components to the portal server. Such extensions include new data sources and new data types/handlers.Type: GrantFiled: September 17, 2001Date of Patent: April 12, 2011Assignee: Invensys Systems, Inc.Inventors: Paul W. Forney, Rashesh Mody, Dave Tran, Pramod Thazichayil, Vijay Anand, Kimson Q. Nguyen
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Patent number: 7925940Abstract: A computer is programmed to prepare a computer program for simulating operation of an integrated circuit (IC) chip, in order to test scan circuitry therein. The computer is programmed to trace a path through combinational logic in a design of the IC chip, starting from an output port of a first scan cell and ending in an input port of a second scan cell. If the first and second scan cells receive a common scan enable signal, then the computer generates at least a portion of the computer program, i.e. software to perform simulation of propagating a signal through the path conditionally, for example when the common scan enable signal is inactive and alternatively to skip performing simulation when the common scan enable signal is active. The computer stores the portion of the computer program in memory, for use with other such portions of the computer program.Type: GrantFiled: October 17, 2007Date of Patent: April 12, 2011Assignee: Synopsys, Inc.Inventors: Yogesh Pandey, Vijay Anand Sankar, Manish Jain
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Patent number: 7901511Abstract: The present invention provides a method of producing xylose from lignocellulosic feedstock. The method comprises disrupting lignocellulosic feedstock; leaching the lignocellulosic feedstock by contacting the feedstock with at least one aqueous solution for a period greater than about 2 minutes to produce a leached feedstock and a leachate; removing the leachate from the leached feedstock; acidifying the leached feedstock to a pH between about 0.5 and about 3 to produce an acidified feedstock, and; reacting the acidified feedstock under conditions which disrupt fiber structure and hydrolyze a portion of hemicellulose and cellulose of the acidified feedstock, to produce a composition comprising xylose and a pretreated feedstock. The xylose may be purified from the pretreated feedstock or it may be converted to ethanol with the pretreated feedstock.Type: GrantFiled: February 27, 2002Date of Patent: March 8, 2011Assignee: Iogen Energy CorporationInventors: Robert Griffin, Colin Nicholson, Corinne Mott, Jeffrey S. Tolan, Vijay Anand
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Patent number: 7891815Abstract: Systems and methods for displaying three-dimensional (3D) images are described. In particular, the systems can include a display block made from a transparent material with optical elements three -dimensionally disposed therein. Each optical element becomes luminous when illuminated by a light ray. The systems can also include a computing device configured to generate two-dimensional (2D) images formatted to create 3D images when projected on the display block, by a video projector coupled to the computing device. The video projector is configured to project the 2D images on the block to create the 3D images by causing a set of the passive optical elements to become luminous. Various other systems and methods are described for displaying 3D images.Type: GrantFiled: September 29, 2009Date of Patent: February 22, 2011Assignee: The Trustees of Columbia University in the City of New YorkInventors: Shree K Nayar, Vijay Anand Nagarajan
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Publication number: 20100190226Abstract: A process for producing ethanol from a pretreated feedstock is provided. The feedstock is selected from grasses, cereal straws, stover, and combinations thereof, and least about 80% of the feedstock has a particle length of between about 2 cm and about 40 cm. This process comprises wetting the feedstock in liquid, pressing the wet feedstock through one roll press or a series of roll presses to remove at least a portion of water and soluble substances from the wetted feedstock and to shear the feedstock to produce feedstock particles of a size suitable for pumping at a solids concentration of about 8% to about 20% when slurried. At least one roll press, or at least one roll press in the series of roll presses comprises rolls with circumferential v-shaped grooves. The pressed feedstock particles are slurried to produce a slurried feedstock having a consistency of between about 8% and about 20%, and the slurried feedstock pumped into a pretreatment reactor.Type: ApplicationFiled: March 12, 2010Publication date: July 29, 2010Applicant: IOGEN ENERGY CORPORATIONInventors: Pat Foody, Vijay Anand
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Publication number: 20100157030Abstract: Systems and methods for displaying three-dimensional (3D) images are described. In particular, the systems can include a display block made from a transparent material with optical elements three-dimensionally disposed therein. Each optical element becomes luminous when illuminated by a light ray. The systems can also include a computing device configured to generate two-dimensional (2D) images formatted to create 3D images when projected on the display block, by a video projector coupled to the computing device. The video projector is configured to project the 2D images on the block to create the 3D images by causing a set of the passive optical elements to become luminous. Various other systems and methods are described for displaying 3D images.Type: ApplicationFiled: September 29, 2009Publication date: June 24, 2010Applicant: The Trustees of Columbia University in the City of New YorkInventors: Shree K. Nayar, Vijay Anand Nagarajan
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Patent number: 7709042Abstract: A process for producing a pretreated feedstock is provided. The feedstock is selected from grasses, cereal straws, stover, and combinations thereof, and least about 80% of the feedstock has a particle length of between about 2 cm and about 40 cm. This process comprises wetting the feedstock in liquid, pressing the wet feedstock through one roll press or a series of roll presses to remove at least a portion of water and soluble substances from the wetted feedstock and to shear the feedstock to produce feedstock particles of a size suitable for pumping at a solids concentration of about 8% to about 20% when slurried. At least one roll press, or at least one roll press in the series of roll presses comprises rolls with circumferential v-shaped grooves. The pressed feedstock particles are slurried to produce a slurried feedstock having a consistency of between about 8% and about 20%, and the slurried feedstock pumped into a pretreatment reactor.Type: GrantFiled: September 9, 2005Date of Patent: May 4, 2010Assignee: Iogen Energy CorporationInventors: Pat Foody, Vijay Anand
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Patent number: 7670813Abstract: A method for recovering inorganic salt during processing of a lignocellulosic feedstock is provided. The method comprises pretreating the lignocellulosic feedstock by adding an acid or a base to the feedstock to produce a pretreated lignocellulosic feedstock. A soluble base or acid is then added to the pretreated lignocellulosic feedstock to adjust the pH and produce a neutralized feedstock. The neutralized feedstock is then hydrolyzed to produce an hydrolyzed feedstock and a sugar stream. Inorganic salt is recovered from a wash stream obtained from the pretreated lignocellulosic feedstock, a stream obtained from the neutralized feedstock, a stream obtained from the sugar stream, or a combination of these streams. The inorganic salt may be concentrated, clarified, recovered and purified by crystallization, electrodialysis, drying, or agglomeration and granulation, and then used as desired, for example, as a fertilizer.Type: GrantFiled: October 25, 2006Date of Patent: March 2, 2010Assignee: Iogen Energy CorporationInventors: Brian Foody, Jeffrey S. Tolan, Ziyad Rahme, Vijay Anand
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Publication number: 20100011362Abstract: There are provided methods for single-owner multi-consumer work queues for repeatable tasks. A method includes permitting a single owner thread of a single owner, multi-consumer, work queue to access the work queue using atomic instructions limited to only a single access and using non-atomic operations. The method further includes restricting the single owner thread from accessing the work queue using atomic instructions involving more than one access. The method also includes synchronizing amongst other threads with respect to their respective accesses to the work queue.Type: ApplicationFiled: July 14, 2008Publication date: January 14, 2010Inventors: Maged M. Michael, Vijay Anand Saraswat, Martin Vechev
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Publication number: 20100003733Abstract: A method for recovering inorganic salt during processing of a lignocellulosic feedstock is provided. The method comprises pretreating the lignocellulosic feedstock by adding an acid to the feedstock to produce a pretreated lignocellulosic feedstock. A soluble base is then added to the pretreated lignocellulosic feedstock to adjust the pH and produce a neutralized feedstock. The neutralized feedstock is then enzymatically hydrolyzed to produce an enzyme hydrolyzed feedstock and a sugar stream. Inorganic salt is recovered from either a stream obtained from the lignocellulosic feedstock prior to the step of pretreating, a stream obtained from the pretreated lignocellulosic feedstock, a stream obtained from the neutralized feedstock, a stream obtained from the sugar stream, or a combination of these streams. The inorganic salt may be concentrated, clarified, recovered and purified by crystallization, electrodialysis drying, or agglomeration and granulation, and then used as desired, for example as a fertilizer.Type: ApplicationFiled: August 12, 2009Publication date: January 7, 2010Applicant: IOGEN ENERGY CORPORATIONInventors: Brian Foody, Jeffrey S. Tolan, Ziyad Rahme, Vijay Anand
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Patent number: 7614748Abstract: Systems and methods for displaying three-dimensional (3D) images are described. In particular, the systems can include a display block made from a transparent material with optical elements three-dimensionally disposed therein. Each optical element becomes luminous when illuminated by a light ray. The systems can also include a computing device configured to generate two-dimensional (2D) images formatted to create 3D images when projected on the display block, by a video projector coupled to the computing device. The video projector is configured to project the 2D images on the block to create the 3D images by causing a set of the passive optical elements to become luminous. Various other systems and methods are described for displaying 3D images.Type: GrantFiled: October 25, 2005Date of Patent: November 10, 2009Assignee: The Trustees of Columbia University in the City of New YorkInventors: Shree K. Nayar, Vijay Anand Nagarajan
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Patent number: 7585652Abstract: A method for recovering inorganic salt during processing of a lignocellulosic feedstock is provided. The method comprises pretreating the lignocellulosic feedstock by adding an acid to the feedstock to produce a pretreated lignocellulosic feedstock. A soluble base is then added to the pretreated lignocellulosic feedstock to adjust the pH and produce a neutralized feedstock. The neutralized feedstock is then enzymatically hydrolyzed to produce an enzyme hydrolyzed feedstock and a sugar stream. Inorganic salt is recovered from either a stream obtained from the lignocellulosic feedstock prior to the step of pretreating, a stream obtained from the pretreated lignocellulosic feedstock, a stream obtained from the neutralized feedstock, a stream obtained from the sugar stream, or a combination of these streams. The inorganic salt may be concentrated, clarified, recovered and purified by crystallization, electrodialysis drying, or agglomeration and granulation, and then used as desired, for example as a fertilizer.Type: GrantFiled: April 13, 2005Date of Patent: September 8, 2009Assignee: Iogen Energy CorporationInventors: Brian Foody, Jeffrey S. Tolan, Ziyad Rahme, Vijay Anand
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Publication number: 20090106612Abstract: A computer is programmed to prepare a computer program for simulating operation of an integrated circuit (IC) chip, in order to test scan circuitry therein. The computer is programmed to trace a path through combinational logic in a design of the IC chip, starting from an output port of a first scan cell and ending in an input port of a second scan cell. If the first and second scan cells receive a common scan enable signal, then the computer generates at least a portion of the computer program, i.e. software to perform simulation of propagating a signal through the path conditionally, for example when the common scan enable signal is inactive and alternatively to skip performing simulation when the common scan enable signal is active. The computer stores the portion of the computer program in memory, for use with other such portions of the computer program.Type: ApplicationFiled: October 17, 2007Publication date: April 23, 2009Inventors: Yogesh Pandey, Vijay Anand Sankar, Manish Jain
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Publication number: 20080316201Abstract: Systems and methods for displaying three-dimensional (3D) images are described. In particular, the systems can include a display block made from a transparent material with optical elements three-dimensionally disposed therein. Each optical element becomes luminous when illuminated by a light ray. The systems can also include a computing device configured to generate two-dimensional (2D) images formatted to create 3D images when projected on the display block, by a video projector coupled to the computing device. The video projector is configured to project the 2D images on the block to create the 3D images by causing a set of the passive optical elements to become luminous. Various other systems and methods are described for displaying 3D images.Type: ApplicationFiled: October 25, 2005Publication date: December 25, 2008Applicant: Columbia UnversityInventors: Shree K. Nayar, Vijay Anand Nagarajan
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Publication number: 20080109360Abstract: A system (10) and method (50) for distributing digital information, including download information and activation or digital rights management information, to one or more branch devices. The method includes a root device receiving digital information from an information source, and transmitting the download information and the activation information associated with the download information to one or more branch devices. The branch device, upon receiving the activation information can activate, install or execute the download information. The download information and/or the activation information can be conditionally distributed, e.g., based on a time-based, location-based or authentication-based condition or event. The method also may include extracting the distributed information, e.g., upon the completion of the condition or event.Type: ApplicationFiled: November 7, 2006Publication date: May 8, 2008Applicant: GENERAL INSTRUMENT CORPORATIONInventors: Thomas C. Hill, Sandeep M. Adwankar, Vijay Anand
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Publication number: 20080102502Abstract: A method for recovering inorganic salt during processing of a lignocellulosic feedstock is provided. The method comprises pretreating the lignocellulosic feedstock by adding an acid or a base to the feedstock to produce a pretreated lignocellulosic feedstock. A soluble base or acid is then added to the pretreated lignocellulosic feedstock to adjust the pH and produce a neutralized feedstock. The neutralized feedstock is then hydrolyzed to produce an hydrolyzed feedstock and a sugar stream. Inorganic salt is recovered from a wash stream obtained from the pretreated lignocellulosic feedstock, a stream obtained from the neutralized feedstock, a stream obtained from the sugar stream, or a combination of these streams. The inorganic salt may be concentrated, clarified, recovered and purified by crystallization, electrodialysis, drying, or agglomeration and granulation, and then used as desired, for example, as a fertilizer.Type: ApplicationFiled: October 25, 2006Publication date: May 1, 2008Inventors: Brian Foody, Jeffrey S. Tolan, Ziyad Rahme, Vijay Anand
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Publication number: 20080097622Abstract: A manufacturing/process control system information access provider architecture is disclosed. Manufacturing/process control system data provider flexibility is achieved through a user-configurable manufacturing/process control information portal server that comprises multiple selectable data provides (sources) and/or data types that a particular data provider accommodates. A user configures the portal server to deliver manufacturing/process control information associated with a controlled process environment, such as a food processing plant floor or an oil refinery reactor, to the user via a browser client over the Internet or a corporate intranet. Furthermore, an extensible architecture is provided that enables adding new components to the portal server. Such extensions include new data sources and new data types/handlers.Type: ApplicationFiled: December 18, 2007Publication date: April 24, 2008Applicant: Invensys Systems, Inc.Inventors: Paul Forney, Rashesh Mody, Dave Tran, Pramod Thazichayil, Vijay Anand, Kimson Nguyen
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Publication number: 20080064906Abstract: The present invention is directed to a continuous process for pretreating a lignocellulosic feedstock. A feedstock slurry is provided, which has a solids concentration of 10% to 33% by weight. The feedstock slurry is pumped through a heating train of at least two stages, each stage including a pump to increase stage pressure and a direct steam injection to heat the feedstock slurry. Acid is also added to the feedstock slurry prior to the heating train, during a heating stage, or after leaving the heating train; the acid is added at a concentration of 0% to 12% weight of acid on weight of initial feedstock. A heated, acidified feedstock slurry is thus produced. The heated, acidified feedstock slurry is flowed through a pre-treatment reactor at a temperature of 160° C. to 280° C. for a time sufficient to increase efficiency of conversion of cellulose in the feedstock to glucose using cellulase enzymes.Type: ApplicationFiled: September 30, 2005Publication date: March 13, 2008Applicant: IOGEN ENERGY CORPORATIONInventors: Brian Foody, Vijay Anand, David Rea