Patents by Inventor A. Prasad

A. Prasad 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: 20070134762
    Abstract: The present invention is directed to methods of producing conjugates of peptide immunogens with protein/polypeptide carrier molecules, which are useful as immunogens, wherein peptide immunogens are conjugated to protein carriers via activated functional groups on amino acid residues of the carrier or of the optionally attached linker molecule, and wherein any unconjugated reactive functional groups on amino acid residues are inactivated via capping, thus retaining the immunological functionality of the carrier molecule, but reducing the propensity for undesirable reactions that could render the conjugate less safe or effective. Furthermore, the invention also relates to such immunogenic products and immunogenic compositions containing such immunogenic products made by such methods.
    Type: Application
    Filed: December 17, 2004
    Publication date: June 14, 2007
    Inventors: Rasappa Arumugham, A. Prasad
  • Patent number: 7152140
    Abstract: According to some embodiments, a parity check is provided for ternary content addressable memory. For example, it may be arranged for a read request to be transmitted to a ternary content addressable memory unit. Data content may then be received from the memory unit in response to the read request, a parity check may be performed on the data content. According to some embodiments, parity information may be masked when the memory unit is queried.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: December 19, 2006
    Assignee: Intel Corporation
    Inventors: Kin Yip Sit, Kavitha A. Prasad, Miguel Guerrero
  • Patent number: 7066590
    Abstract: Combinations of cationic underprinting fluids and anionic ink compositions that together achieve improved color quality and image stability in ink-jet printed images.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: June 27, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Shirley Lee, Gary W. Byers, Alexey S Kabalnov, Mark H. Kowalski, Amiya K. Chatterjee, Keshava A Prasad, David M. Schut
  • Patent number: 7049456
    Abstract: The invention relates to a method of preparing O,O-dialkyl S-[2-(alkylthio)alkyl] phosphorodithioates by treating O,O-dialkyl dithiophosphoric acids with a base in the substantial absence of organic solvent to obtain O,O-dialkyl dithiophosphoric acid salts that are in turn treated with thioalcohol derivatives to form the O,O-dialkyl S-[2-(alkylthio)alkyl] phosphorodithioates.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: May 23, 2006
    Assignee: Bayer Cropscience LP
    Inventors: Vidyanatha A. Prasad, Robert D. Ingalls, Stephen C. Slahck, Christopher M. Tusa
  • Publication number: 20050203825
    Abstract: A method of processing financial articles of trade is provided. The method includes collecting real time data from a plurality of liquidity destinations in trading at least one of securities, commodities, options, futures and derivatives, the real time data including information on submitted transactions of financial articles of trade. The real time data collected from the plurality of liquidity destinations is aggregated. The real time data is streamed in a standardized form. User criteria are established to identify relevant portions of the streamed real time data. The streamed real time data is analyzed according to the user criteria. The analyzed real time data is consolidated into a computer data base.
    Type: Application
    Filed: September 30, 2004
    Publication date: September 15, 2005
    Inventors: Corby Angle, Douglas Kittelsen, Malcolm LaFever, Ted Myerson, A. Prasad
  • Publication number: 20040260868
    Abstract: According to some embodiments, a parity check is provided for ternary content addressable memory.
    Type: Application
    Filed: June 18, 2003
    Publication date: December 23, 2004
    Inventors: Kin Yip Sit, Kavitha A. Prasad, Miguel Guerrero
  • Patent number: 6818048
    Abstract: The present invention provides ink-jet inks for ink-jet printing, comprising from 0.1% to 5% by weight of at least one dye; from 8% to 20% by weight of a diol selected from the group consisting of 1,2-pentanediol, 1,2-hexanediol, and combinations thereof; from 0.1% to 5% by weight of an aliphatic alcohol or aliphatic alcohol mixture; and from 0.1% to 1.5% by weight of at least one component independently selected from the group consisting of buffers, biocides, and metal chelators, with the proviso that no surfactant is present in the ink-jet ink composition. The ink-jet inks formulated according to the present invention provide good dot size, color-to-color bleed alleviation, improved coalescence, less chia, and improved print head materials compatibility.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: November 16, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Keshava A. Prasad, Amiya K. Chatterjee, John M. Gardner, Anne M. Kelly-Rowley
  • Patent number: 6801143
    Abstract: A method and apparatus for generating Gray code for any even count value to enable efficient pointer exchange mechanisms in asynchronous FIFO's. Allowing Gray code for any range of even count values provides the benefit of decreasing metastability when exchanging pointers for FIFO buffers in asynchronous environments. Utilizing the Gray code adjacency principle, which provides that only one bit changes for any successive numbers, in a larger class of numbers than previously utilized, decreases metastability.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: October 5, 2004
    Assignee: Intel Corporation
    Inventors: Ashwani Oberai, Kavitha A. Prasad, Sreenath Kurupati
  • Publication number: 20040189775
    Abstract: Combinations of cationic underprinting fluids and anionic ink compositions that together achieve improved color quality and image stability in ink-jet printed images.
    Type: Application
    Filed: April 1, 2004
    Publication date: September 30, 2004
    Inventors: Shirley Lee, Gary W. Byers, Alexey S. Kabalnov, Mark H. Kowalski, Amiya K. Chatterjee, Keshava A. Prasad, David M. Schut
  • Publication number: 20040176629
    Abstract: The invention relates to a method of preparing O,O-dialkyl S-[2-(alkylthio)alkyl]phosphorodithioates by treating -O,O-dialkyl dithiophosphoric acids with a base in the substantial absence of organic solvent to obtain O,O-dialkyl dithiophosphoric acid salts that are in turn treated with thioalcohol derivatives to form the O,O-dialkyl S-[2-(alkylthio)alkyl]phosphorodithioates.
    Type: Application
    Filed: March 7, 2003
    Publication date: September 9, 2004
    Inventors: Vidyanatha A. Prasad, Robert D. Ingalls, Stephen C. Slahck, Christopher M. Tusa
  • Publication number: 20040167348
    Abstract: The invention relates to a method of purifying an O,O-dialkyl S-[2-(alkylthio)alkyl] phosphorodithioate by purging a sample containing a volatile and the O,O-dialkyl S-[2-(alkylthio)alkyl] phosphorodithioate with a gas.
    Type: Application
    Filed: February 26, 2003
    Publication date: August 26, 2004
    Inventors: Vidyanatha A. Prasad, Robert D. Ingalls, Stephen C. Slahck, Christopher M. Tusa, Paul E. Nagy, Michael P. Newcomer, Donald K. Smith
  • Publication number: 20040154497
    Abstract: The present invention provides ink-jet inks for ink-jet printing, comprising from 0.1% to 5% by weight of at least one dye; from 8% to 20% by weight of a diol selected from the group consisting of 1,2-pentanediol, 1,2-hexanediol, and combinations thereof; from 0.1% to 5% by weight of an aliphatic alcohol or aliphatic alcohol mixture; and from 0.1% to 1.5% by weight of at least one component independently selected from the group consisting of buffers, biocides, and metal chelators, with the proviso that no surfactant is present in the inkjet ink composition. The ink-jet inks formulated according to the present invention provide good dot size, color-to-color bleed alleviation, improved coalescence, less chia, and improved print head materials compatibility.
    Type: Application
    Filed: October 30, 2001
    Publication date: August 12, 2004
    Inventors: Keshava A. Prasad, Amiya K. Chatterjee, John M. Gardner, Anne M. Kelly-Rowley
  • Patent number: 6740689
    Abstract: Combinations of cationic underprinting fluids and anionic ink compositions that together achieve improved color quality and image stability in ink-jet printed images.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: May 25, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Shirley Lee, Gary W Byers, Alexey S Kabalnov, Mark H. Kowalski, Amiya K. Chatterjee, Keshava A Prasad, David M. Schut
  • Patent number: 6716278
    Abstract: A method of selecting a dye for use with a spreading vehicle can comprise the steps of evaluating a first dye having polar atoms and a second dye having polar atoms to determine a first polarity index and a second polarity index, respectively; and selecting the first dye or the second dye for inclusion in the spreading vehicle based upon a comparison of the first polarity index and the second polarity index. Further, a method of evaluating a dye and formulating an ink-jet ink can comprise the steps of providing a spreading ink-jet ink vehicle; selecting a dye to be evaluated for inclusion in the spreading ink-jet ink vehicle; determining the ratio of polar atoms to carbon atoms within the dye; selecting a desired polarity index ratio range; and admixing the dye with the spreading ink-jet ink vehicle if the ratio is within the desired polarity index ratio range.
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: April 6, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Keshava A. Prasad, John M. Gardner, Peter C. Morris
  • Patent number: 6682589
    Abstract: A specific dye set for formulating yellow, cyan, magenta, and black inks comprises Direct Yellow 132, at least one other yellow dye, Direct Blue 199, a magenta dye comprising a dye having the structure and, optionally, Pacified Reactive Black 31, respectively. The dye set provides excellent ink-jet prints having excellent lightfastness when exposed to office light, excellent imaging onto glossy inkjet media, and large color gamut which substantially encompasses the color space for a silver halide reference print. The aqueous inks each comprise from about 0.1 to about 5 wt % of at least one dye with the black ink comprising from about 0.5 to about 5 wt % of at least one colorant; from about 5 to about 20 wt % of at least one organic solvent; 0 to about 1.5 wt % of at least one component independently selected from the group consisting of surfactants, buffers, biocides, and metal chelators; and the balance water.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: January 27, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Peter C. Morris, Stephen W. Bauer, Shirley Lee, Keshava A. Prasad, Jeffrey H. Barr
  • Publication number: 20040001014
    Abstract: A method and apparatus for generating Gray code for any even count value to enable efficient pointer exchange mechanisms in asynchronous FIFO's. Allowing Gray code for any range of even count values provides the benefit of decreasing metastability when exchanging pointers for FIFO buffers in asynchronous environments. Utilizing the Gray code adjacency principle, which provides that only one bit changes for any successive numbers, in a larger class of numbers than previously utilized, decreases metastability.
    Type: Application
    Filed: June 28, 2002
    Publication date: January 1, 2004
    Inventors: Ashwani Oberai, Kavitha A. Prasad, Sreenath Kurupati
  • Publication number: 20030150356
    Abstract: A method of selecting a dye for use with a spreading vehicle can comprise the steps of evaluating a first dye having polar atoms and a second dye having polar atoms to determine a first polarity index and a second polarity index, respectively; and selecting the first dye or the second dye for inclusion in the spreading vehicle based upon a comparison of the first polarity index and the second polarity index. Further, a method of evaluating a dye and formulating an ink-jet ink can comprise the steps of providing a spreading ink-jet ink vehicle; selecting a dye to be evaluated for inclusion in the spreading ink-jet ink vehicle; determining the ratio of polar atoms to carbon atoms within the dye; selecting a desired polarity index ratio range; and admixing the dye with the spreading ink-jet ink vehicle if the ratio is within the desired polarity index ratio range.
    Type: Application
    Filed: January 28, 2002
    Publication date: August 14, 2003
    Inventors: Keshava A. Prasad, John M. Gardner, Peter C. Morris
  • Patent number: 6598103
    Abstract: A method and apparatus for transferring data between bus agents in a computer system. The present invention includes transmitting a control signal, from a first agent to a second agent, via a first transfer protocol; and, transmitting data corresponding to the control signal, from the first agent to the second agent, via a second transfer protocol. In one embodiment, the control signals are transmitted from the first agent to the second agent via a synchronous transmission with respect to a bus clock; and, the data is transmitted via an asynchronous transmission with respect to the bus clock, which has a data width greater than the synchronous transmission. In addition, in one embodiment of the present invention, the synchronous transmission is a common clock data transfer protocol, and the asynchronous transmission is a source clock data transfer protocol.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: July 22, 2003
    Assignee: Intel Corporation
    Inventors: Peter D. MacWilliams, William S. Wu, Dilip K. Sampath, Bindi A. Prasad
  • Patent number: 6592657
    Abstract: Ink-jet ink compositions are described comprising at least one organo-phosphonic acid or its sodium or potassium salt. The ink-jet ink compositions reduce puddling, scale formation, kogation and corrosion, and as such lead to improved print quality.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: July 15, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Shirley Lee, Steven L. Webb, Grant Allen Webster, Christopher S. Tanner, Stephen W. Bauer, Keshava A. Prasad
  • Publication number: 20030101904
    Abstract: A specific dye set for formulating yellow, cyan, magenta, and black inks comprises Direct Yellow 132, at least one other yellow dye, Direct Blue 199, a magenta dye comprising a dye having the structure 1
    Type: Application
    Filed: October 30, 2001
    Publication date: June 5, 2003
    Inventors: Peter C. Morris, Stephen W. Bauer, Shirley Lee, Keshava A. Prasad, Jeffrey H. Barr