Patents by Inventor Chandra Gupta

Chandra Gupta 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: 9546940
    Abstract: A test device has been invented for determining three-dimensional consolidation properties of soils, using a flexible ring permitting displacements and dissipation of the excess pore pressures in both horizontal and vertical directions, and affording determination of coefficients of consolidation in the horizontal and vertical directions, and the modulus of elasticity. The flexible ring consists of a filter fabric around the soil specimen, a rubber membrane around the filter, circular shaped segmented metal plates around the membrane and rubber bands or rings around the plates. Both the incremental loading or triaxial type loading systems can be used with this device. A calibration device for calibration of the flexible ring is used to determine the modulus of elasticity of elastic elements, required for calculating lateral resistance provided by the flexible ring during the test.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: January 17, 2017
    Inventor: Ramesh Chandra Gupta
  • Publication number: 20160356685
    Abstract: Standard test methods using a fixed ring for determining one-dimensional consolidation properties of soils represent a subsurface condition where settlement and dissipation of excess pore pressure is possible only in vertical direction. This subsurface condition never occurs, as settlements and dissipation of excess pore pressures always occur in horizontal and vertical directions. Dr. Ramesh Gupta has invented a test device for determining three-dimensional consolidation properties of soils, using a flexible ring permitting displacements and dissipation of excess pore pressures in both horizontal and vertical directions, and affording determination of coefficients of consolidation in horizontal and vertical directions including three-dimensional coefficient of consolidation, and modulus of elasticity.
    Type: Application
    Filed: June 1, 2016
    Publication date: December 8, 2016
    Inventor: Ramesh Chandra Gupta
  • Patent number: 9383346
    Abstract: During triaxial compression test, a soil specimen experiences reduction of its height with increase in its diameter. New cross-sectional area is calculated assuming uniform increase in diameter. This condition is seldom met in actual soil specimens, because specimen undergoes non-uniform increase in diameter and very often with localized bulging in specimen affecting the accuracy of calculation of deviator stress, shears strength and volume change characteristics. The expandable jacket included in this invention consists of circular segmental metal plates wrapped around the soil specimen and elastomeric rubber bands or rings around the segmental plates to permit uniform radial expansion and maintain uniform diameter of the specimen during the test and thereby providing accurate values of deviator stress, volume change characteristics and shear strength of soil specimen. The calibration device for calibration of expandable jacket shall provide the magnitude of correction to be made in deviator stress.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: July 5, 2016
    Inventor: Ramesh Chandra Gupta
  • Patent number: 9268672
    Abstract: Some implementations include receiving an application binary file for an application to be tested. One or more static analysis operations may be performed on the application binary file to identify application parameters. In some cases, keywords may be associated with individual application parameters, and the keywords may be used to query a test case repository in order to identify test cases. The identified test cases may be used to generate a test plan, and at least a portion of the test plan may be automatically executed in some cases. A test report may be generated that includes a list of test case failures and potential solutions, and the test report may be sent e.g., to a third-party developer or an approval engineer for review.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: February 23, 2016
    Assignee: Amazon Technologies, Inc.
    Inventor: Suresh Chandra Gupta
  • Patent number: 9256592
    Abstract: The positioning of elements of a broken word can be corrected by receiving an optical character recognition (OCR) conversion of a printed publication and identifying multiple parts of the broken word from the OCR conversion to place in a graphical user interface (GUI). The multiple parts can be placed in the GUI using original positioning data for the printed publication. A user can make a selection in the GUI indicating that multiple parts from the OCR conversion are of the broken word and can automatically adjust bounds of the multiple parts to form a corrected word.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: February 9, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Satishkumar Kothandapani Shanmugasundaram, Shubham Chandra Gupta, Arpita Agrawal
  • Patent number: 9220598
    Abstract: A covering for delivering a substance or material to a surgical site is provided. The covering, with substance provided therein, may be referred to as a delivery system. Generally, the covering may be a single or multi-compartment structure capable of at least partially retaining a substance provided therein until the covering is placed at a surgical site. Upon placement, the covering may facilitate transfer of the substance or surrounding materials. For example, the substance may be released (actively or passively) to the surgical site. The covering may participate in, control, or otherwise adjust the release of the substance. In various embodiments, the covering is suitable for a variety of procedure specific uses. Implantation tools may be provided for placing the covering at a surgical site. Kits may be provided including variously sized or shaped coverings and one or more tools for use in placing the covering.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: December 29, 2015
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Randal R. Betz, Scott Boden, Munish Chandra Gupta, Michael F. O'Brien, Harvinder Sandhu, Alexis Shelokov, Georgiana Shelokov, Daryl R. Sybert, Alexander Vaccaro, Guobao Wei, Todd M. Boyce, Robert Cohen, Cristy Richards, Lawrence A. Shimp
  • Publication number: 20150267370
    Abstract: Standard test methods for determining one-dimensional consolidation properties of soils using incremental loading in accordance with ASTM D2435, or AASHTO 216, and of those of other international and organizations, do not accurately predict the values of vertical settlement, coefficients of consolidation in horizontal and vertical directions, and modulus of elasticity in vertical direction, because fixed ring used in these tests do not allow horizontal settlement and dissipation of excess pore-water pressures in horizontal direction, whereas, in field, under application of a vertical load, both horizontal and vertical settlements occur along with dissipation of excess pore-water pressures in both vertical and horizontal directions. To overcome this more than 100 year old problem, the inventor (Dr. Ramesh Chandra Gupta, Ph. D., P.E.
    Type: Application
    Filed: June 3, 2015
    Publication date: September 24, 2015
    Inventor: Ramesh Chandra Gupta
  • Publication number: 20150268217
    Abstract: During triaxial compression test, a soil specimen experiences reduction of its height with simultaneous increase in its diameter. For calculation of new cross-sectional area, it is always assumed that the specimen deforms as a cylinder with uniform increase in diameter through its height. This condition is seldom or never met in actual soil specimens, because specimen undergoes non-uniform increase in diameter through its height and very often with localized bulging in specimen affecting the accuracy of calculation of magnitude of deviator stress at any instant of time during the test. Non-uniform increase in diameter through its height with often localized bulging affects the real strength and volume change characteristics, and how much this effect of non-uniform lateral increase in diameter changes these properties remains unknown.
    Type: Application
    Filed: March 17, 2015
    Publication date: September 24, 2015
    Inventor: Ramesh Chandra Gupta
  • Publication number: 20150126530
    Abstract: The present invention relates to novel substituted imidazo[1,2-a]pyrimidine compounds of formula (I), their pharmaceutically acceptable salts, and their isomers, stereoisomers, conformers, tautomers, polymorphs, hydrates and solvates. The present invention also encompasses pharmaceutically acceptable compositions of said compounds and process for preparing novel compounds. The invention further” relates to the use of the above-mentioned compounds for the preparation of medicament for use as pharmaceuticals. (Formula I).
    Type: Application
    Filed: October 15, 2012
    Publication date: May 7, 2015
    Applicant: Torrent Pharmaceuticals Limited
    Inventors: Chaitanya Dutt, Vijay Chauthaiwale, Ramesh Chandra Gupta, Sameer Ghalsasi, Davinder Tuli, Shailesh Deshpande, Anita Chaudhari, Shitalkumar Zambad
  • Patent number: 8959490
    Abstract: Embodiments of the present invention provide a computing system and method to profile a program for finding potential optimization in heap usage by reducing lag and drag in lifetimes of heap memory blocks. The process consists of three steps. First, an instrumentation engine analyzes a given program and inserts additional code at interesting locations to collect needed information. Second, when the instrumented program is executed on a set of test cases, runtime data is collected. Third, since this data is large for a complex and long running program, data is processed to present it to a user in useful ways so that a programmer improves the heap utilization in the program.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: February 17, 2015
    Assignee: International Business Machines Corporation
    Inventors: Satish Chandra Gupta, Kumar Rangarajan
  • Patent number: 8822484
    Abstract: The present invention relates to novel compounds, their pharmaceutically acceptable salts, and their isomers, steroisomers, conformers, tautomers, polymorphs, hydrates and solvates. The present invention also encompasses pharmaceutically acceptable compositions of said compounds and process for preparing novel compounds. The invention further relates to the use of the above-mentioned compounds for the preparation of medicament for use as pharmaceuticals.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: September 2, 2014
    Assignee: Torrent Pharmaceuticals Limited
    Inventors: Sanjay Srivastava, Laxmikant Chhipa, Ramesh Chandra Gupta, Shailesh Deshpande, Anita Chaudhari, Anookh Mohanan, Chaitanya Dutt, Vijay Chauthaiwale, Murali Badanthadka, Prashant G. Jamadarkhana
  • Publication number: 20130331406
    Abstract: The present invention relates to novel compounds, their pharmaceutically acceptable salts, and their isomers, steroisomers, conformers, tautomers, polymorphs, hydrates and solvates. The present invention also encompasses pharmaceutically acceptable compositions of said compounds and process for preparing novel compounds. The invention further relates to the use of the above-mentioned compounds for the preparation of medicament for use as pharmaceuticals.
    Type: Application
    Filed: August 9, 2013
    Publication date: December 12, 2013
    Applicant: Torrent Pharmaceuticals Limited
    Inventors: Sanjay SRIVASTAVA, Laxmikant CHHIPA, Ramesh Chandra GUPTA, Shailesh DESHPANDE, Anita CHAUDHARI, Anookh MOHANAN, Chaitanya DUTT, Vijay CHAUTHAIWALE, Murali BADANTHADKA, Prashant G. JAMADARKHANA
  • Patent number: 8549503
    Abstract: Dangling pointers and memory leak locations within software are detected. As the software allocates and deallocates memory, lists of pointers referencing the memory, and pointer status, are maintained. As the software writes new addresses within pointers and reads addresses referenced by the pointers, the pointer lists are maintained to determine whether the pointers are dangling and to detect memory leak locations. A balanced binary tree having a number of nodes can be maintained. The nodes represent heap or stack records. Each heap record corresponds to heap memory that has been allocated and has a list of pointers referencing the heap memory. Each stack record corresponds to a stack within which a stack frame is allocated each time a function is entered. The stack record has frame records corresponding to the stack frames. Each frame record has a list of pointers referencing the corresponding stack frame.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: October 1, 2013
    Assignee: International Business Machines Corporation
    Inventor: Satish Chandra Gupta
  • Patent number: 8541430
    Abstract: The present invention relates to novel compounds, their pharmaceutically acceptable salts, and their isomers, stereoisomers, conformers, tautomers, polymorphs, hydrates and solvates. The present invention also encompasses pharmaceutically acceptable compositions of said compounds and process for preparing novel compounds. The invention further relates to the use of the above-mentioned compounds for the preparation of medicament for use as pharmaceuticals.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: September 24, 2013
    Assignee: Torrent Pharmaceuticals Limited
    Inventors: Sanjay Srivastava, Laxmikant Chhipa, Ramesh Chandra Gupta, Shailesh Deshpande, Anita Chaudhari, Anookh Mohanan, Chaitanya Dutt, Vijay Chauthaiwale, Murali Badanthadka, Prashant G. Jamadarkhana
  • Publication number: 20120278585
    Abstract: This disclosure provides a computing system and method to profile a program for finding potential optimization in heap usage by reducing lag and drag in lifetimes of heap memory blocks. The process consists of three steps. First, an instrumentation engine analyzes a given program, and inserts additional code at interesting locations to collect needed information. Second, when the instrumented program is executed on a set of test cases, runtime data is collected. Third, since this data could be relatively large for a complex and long running program, data is processed to present it to a user in useful ways so that the programmer can improve the heap utilization in the program.
    Type: Application
    Filed: May 2, 2012
    Publication date: November 1, 2012
    Applicant: International Business Machines Corporation
    Inventors: Satish Chandra Gupta, Kumar Rangarajan
  • Patent number: 8245209
    Abstract: Dangling pointers and memory leak locations within software are detected. As the software allocates and deallocates memory, lists of pointers referencing the memory, and pointer status, are maintained. As the software writes new addresses within pointers and reads addresses referenced by the pointers, the pointer lists are maintained to determine whether the pointers are dangling and to detect memory leak locations. A balanced binary tree having a number of nodes can be maintained. The nodes represent heap or stack records. Each heap record corresponds to heap memory that has been allocated and has a list of pointers referencing the heap memory. Each stack record corresponds to a stack within which a stack frame is allocated each time a function is entered. The stack record has frame records corresponding to the stack frames. Each frame record has a list of pointers referencing the corresponding stack frame.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: August 14, 2012
    Assignee: International Business Machines Corporation
    Inventor: Satish Chandra Gupta
  • Publication number: 20120204165
    Abstract: Dangling pointers and memory leak locations within software are detected. As the software allocates and deallocates memory, lists of pointers referencing the memory, and pointer status, are maintained. As the software writes new addresses within pointers and reads addresses referenced by the pointers, the pointer lists are maintained to determine whether the pointers are dangling and to detect memory leak locations. A balanced binary tree having a number of nodes can be maintained. The nodes represent heap or stack records. Each heap record corresponds to heap memory that has been allocated and has a list of pointers referencing the heap memory. Each stack record corresponds to a stack within which a stack frame is allocated each time a function is entered. The stack record has frame records corresponding to the stack frames. Each frame record has a list of pointers referencing the corresponding stack frame.
    Type: Application
    Filed: April 17, 2012
    Publication date: August 9, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Satish Chandra Gupta
  • Patent number: 8185880
    Abstract: This disclosure provides a computing system and method to profile a program for finding potential optimization in heap usage by reducing lag and drag in lifetimes of heap memory blocks. The process consists of three steps. First, an instrumentation engine analyzes a given program, and inserts additional code at interesting locations to collect needed information. Second, when the instrumented program is executed on a set of test cases, runtime data is collected. Third, since this data could be relatively large for a complex and long running program, data is processed to present it to a user in useful ways so that the programmer can improve the heap utilization in the program.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: May 22, 2012
    Assignee: International Business Machines Corporation
    Inventors: Satish Chandra Gupta, Kumar Rangarajan
  • Publication number: 20120046317
    Abstract: The present invention relates to a new class of heterocyclic compounds and pharmaceutically acceptable salts thereof, process for preparing the same, pharmaceutical composition containing these compounds and to their use in treatment of diseases caused due to formation and accumulation of AGEs (Advanced Glycation end products). The compounds of the present invention are useful for the treatment of diabetic and aging-related complications caused by formation and accumulation of AGEs, such as neuropathy, nephropathy, microangiopathy, retinopathy, hypertension, heart failure, atherosclerosis, Alzheimer's disease & dermatological disorders.
    Type: Application
    Filed: May 6, 2010
    Publication date: February 23, 2012
    Inventors: Chaitanya Dutt, Vijay Chauthaiwale, Ramesh Chandra Gupta, Manish Patel, Jignesh Kotecha, Sachin Latad, Jaya Abraham, Sanjay Srivastava, Milin Rode, Shailesh Deshpande, Anita Chaudhary, Amit Kumar Kesarwani
  • Patent number: 8085863
    Abstract: A radio receiver includes an in-phase channel and a quadrature channel, the channels being provided in parallel at a respective input with quadrature modulated radio frequency signals; and an error correction loop for detecting and correcting an imbalance in gain between at least part of the in-phase channel and a corresponding part of the quadrature channel, wherein the error correction loop comprises: a detector adapted to calculate Error_detnew=|I?|?|Q?|, where I? and Q? are the in-phase and quadrature channels respectively; a loop filter arranged to receive Error_detnew from the detector and calculate loop_filter_outnew+=Ki * Error_detnew, where Ki is the loop filter constant and loop_filter_outnew has an initial value of 1; and a multiplier arranged to receive loop_filter_outnew from the loop filter and adjust the signal of the quadrature channel by multiplying the signal by loop_filter_outnew.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: December 27, 2011
    Assignee: Nokia Corporation
    Inventor: Chandra Gupta