Patents by Inventor Shailesh Shah

Shailesh Shah 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: 20070208100
    Abstract: The invention is an energy-curable composition which contains a dual functional component which has at least one ethylenically unsaturated group and at least one carboxylic acid-functional group and a nanoparticle metal oxide component. The curable composition can optionally contain initiators (photoinitiators and/or free radical initiators), components which can react with the dual functional component and additives generally present in energy-curable compositions.
    Type: Application
    Filed: February 28, 2007
    Publication date: September 6, 2007
    Inventors: Anbu Natesh, Levi Scott, Shailesh Shah
  • Patent number: 7221200
    Abstract: A programmable low voltage reset apparatus for a device having a plurality of power supplies comprises a low voltage signal generator for sensing when a power supply output decreases below a predetermined voltage and generating a reset signal, a reset selector for selecting one of the power supplies, and a programmable reference voltage for varying a reference voltage according to the voltage of the selected power supply.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: May 22, 2007
    Assignee: Cypress Semiconductor Corp.
    Inventors: Prasad Kotra, Sunil Thamaran, Shailesh Shah
  • Patent number: 7214261
    Abstract: Fatty acid esters of which the fatty acid constituents are fatty acids containing a total of 12 to 22 carbon atoms and of which the alcohol constituents are saturated and/or mono- or polyolefinically unsaturated monoalcohols containing a total of 1 to 22 carbon atoms, with the additional proviso that the fatty acid constituents of the esters contain saturated and/or mono- or polyolefinically unsaturated fatty acids and have a branched structure, isostearic acid being excluded as the fatty acid constituent of the esters, are suitable as solvents for printing inks.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: May 8, 2007
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Rainer Hoefer, Matthias Fies, Alfred Westfechtel, Shailesh Shah
  • Patent number: 7170179
    Abstract: A chip generally comprising a logic circuit and a plurality of pads. The logic circuit may be configured to operate in a plurality of modes in response to a mode signal. The pads may be configurable into a plurality of subsets such that one of the subsets is used by the logic circuit at a time in response to the mode signal.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: January 30, 2007
    Assignee: Cypress Semiconductor Corp.
    Inventor: Shailesh Shah
  • Publication number: 20060094816
    Abstract: A process for forming an emulsion of an energy-curable component by passing the energy-curable component, water and optionally a surfactant through an in-line mixing zone. The in-line mixing zone can be a static mixing zone or a high shear in-line mixing zone having a rotor-stator assembly. The emulsion can be prepared contemporaneously (just-in-time) with its use.
    Type: Application
    Filed: May 4, 2005
    Publication date: May 4, 2006
    Inventors: Shailesh Shah, Anbu Natesh, Ronald LaFreeda, Ramesh Narayan, Issac Fleming
  • Patent number: 6939529
    Abstract: A hydrogen generating system regulates its rate of hydrogen generation by monitoring one or more parameters of the hydrogen generation process and then providing relative movement between the fuel tank and the catalyst chamber so as to increase or decrease the rate of hydrogen generation. In the disclosed embodiments, the catalyst chamber is disposed in a tank containing the fuel. The relative movement provided moves the catalyst chamber toward the fuel solution so as to increase the rate of hydrogen generation and moves the catalyst chamber away from the fuel solution to decrease such generation. Advantageously, such self-regulation can be provided without an external power source and can be varied to meet the requirements of different commercial applications. The overall system can be readily fabricated using commercially available parts.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: September 6, 2005
    Assignee: Millennium Cell, Inc.
    Inventors: Michael Strizki, Shailesh Shah
  • Publication number: 20050148740
    Abstract: The invention is an amidoamine epoxy curing agent composition, which comprises the reaction product of at least one aliphatic monobasic carboxylic acid, triethylenetetraamine, and an amine selected from the group consisting of polyethylenepolyamines higher than triethylenetetraamine, cycloaliphatic amines, and mixtures thereof, its method of use, and cured epoxy compositions made from it.
    Type: Application
    Filed: February 11, 2005
    Publication date: July 7, 2005
    Inventors: Shailesh Shah, Robert Moon
  • Publication number: 20050120909
    Abstract: Fatty acid esters of which the fatty acid constituents are saturated and/or mono- or polyolefinically unsaturated fatty acids containing a total of 12 to 22 carbon atoms and of which the alcohol constituents are saturated and/or mono- or polyolefinically unsaturated monoalcohols containing a total of 1 to 22 carbon atoms, with the additional proviso that the fatty acid constituents of the esters contain an alicyclic group which may optionally be substituted by an aliphatic group, are suitable as solvents for printing inks.
    Type: Application
    Filed: September 28, 2004
    Publication date: June 9, 2005
    Inventors: Rainer Hoefer, Matthias Fies, Alfred Westfechtel, Shailesh Shah
  • Publication number: 20050115457
    Abstract: Compositions containing esters based on linear fatty acids, esters based on branched fatty acids, esters based on fatty acids containing alicyclic structural elements and esters based on fatty acids containing aromatic structural elements are suitable as solvents for printing inks.
    Type: Application
    Filed: September 21, 2004
    Publication date: June 2, 2005
    Inventors: Rainer Hoefer, Matthias Fies, Alfred Westfechtel, Shailesh Shah
  • Publication number: 20050103227
    Abstract: Fatty acid esters of which the fatty acid constituents are fatty acids containing a total of 12 to 22 carbon atoms and of which the alcohol constituents are saturated and/or mono- or polyolefinically unsaturated monoalcohols containing a total of 1 to 22 carbon atoms, with the additional proviso that the fatty acid constituents of the esters contain saturated and/or mono- or polyolefinically unsaturated fatty acids and have a branched structure, isostearic acid being excluded as the fatty acid constituent of the esters, are suitable as solvents for printing inks.
    Type: Application
    Filed: September 30, 2004
    Publication date: May 19, 2005
    Inventors: Rainer Hoefer, Matthias Fies, Alfred Westfechtel, Shailesh Shah
  • Publication number: 20050092207
    Abstract: Fatty acid esters of which the fatty acid constituents are saturated and/or mono- or polyolefinically unsaturated fatty acids containing a total of 12 to 22 carbon atoms and of which the alcohol constituents are saturated and/or mono- or polyolefinically unsaturated monoalcohols containing a total of 1 to 22 carbon atoms, with the additional proviso that the fatty acid constituents of the esters contain an aryl group which may optionally be substituted by an aliphatic group, are suitable as solvents for printing inks.
    Type: Application
    Filed: September 21, 2004
    Publication date: May 5, 2005
    Inventors: Rainer Hoefer, Matthias Fies, Alfred Westfechtel, Shailesh Shah
  • Patent number: 6822899
    Abstract: In the present invention a method and circuit are shown to protect flash memory from data corruption during a rapid power down. A circuit element detect the drop in power voltage and signals that any write operation being performed be switched into a programming phase, and at the same time increase the programming voltage to the flash memory to significantly reduce programming time. If the power drop occurs during an erase phase of a write operation, the erase operation is switched to a program operation using old data to program erased cells. If the power drop occurs during a programming phase of the write operation, the programming phase is continued but at a faster rate.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: November 23, 2004
    Assignee: Cypress Semiconductor Corporation
    Inventors: Khaled Boulos, Shailesh Shah, Carlos Awong
  • Publication number: 20040138075
    Abstract: Coatings for metal containers, metalworking lubricant compositions, compositions for electroplating and electrowinning, and latex compositions comprising a base-catalyzed reaction product of (a) at least one compound of formula I
    Type: Application
    Filed: November 3, 2003
    Publication date: July 15, 2004
    Inventors: David W. Brown, Kenneth Breindel, Michael S. Wiggins, Ronald W. Broadbent, Shailesh Shah
  • Publication number: 20040120889
    Abstract: A hydrogen generator capable of operating in any orientation and having no moving parts includes a catalyst retaining structure. The catalyst retaining structure is disposed in a housing and serves to separate the housing into a fuel holding portion and a hydrogen chamber. The catalyst retaining structure also includes one or more pores, each pore being in communication with the fuel holding and hydrogen chambers. A catalyst, that promotes the generation of hydrogen gas upon contact with the fuel, is disposed within the pores. The fuel enters the pores and thereupon generates hydrogen gas which passes into the hydrogen chamber. Contact of the fuel with the catalyst in the pores may be controlled and the position of the fuel-hydrogen interface within the pore may be moved so as to regulate the generation of hydrogen. The catalyst retaining structure can take different forms, including one or more hollow elongated members or plates, and may further incorporate hydrophobic and/or hydrophilic membranes.
    Type: Application
    Filed: November 5, 2003
    Publication date: June 24, 2004
    Inventors: Shailesh A. Shah, Michael T. Kelly
  • Publication number: 20040067195
    Abstract: A hydrogen generating system regulates its rate of hydrogen generation by monitoring one or more parameters of the hydrogen generation process and then providing relative movement between the fuel tank and the catalyst chamber so as to increase or decrease the rate of hydrogen generation.
    Type: Application
    Filed: October 3, 2002
    Publication date: April 8, 2004
    Inventors: Michael Strizki, Shailesh Shah
  • Publication number: 20030176627
    Abstract: The invention is an amidoamine epoxy curing agent composition, which comprises the reaction product of at least one aliphatic monobasic carboxylic acid, triethylenetetraamine, and an amine selected from the group consisting of polyethylenepolyamines higher than triethylenetetraamine, cycloaliphatic amines, and mixtures thereof, its method of use, and cured epoxy compositions made from it.
    Type: Application
    Filed: January 22, 2003
    Publication date: September 18, 2003
    Inventors: Shailesh Shah, Robert M. Moon
  • Patent number: 6423304
    Abstract: Blooming and/or syneresis in gel formulations can be reduced or eliminated by adding to an organic mixture an effective amount of a polyamide gelling agent having a softening point of less than about 105° C. wherein the polyamide is the reaction product of one or more diamines, optionally one or more mono-amines, one or more hydrogenated C36 dimer acids, optionally one or more C2-22 dicarboxylic acids, and optionally one or more C2-22 monocarboxylic acids.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: July 23, 2002
    Assignee: Cognis Corporation
    Inventors: Shailesh Shah, Sobhy El-Hefnawi, Douglas C. Rhubright
  • Patent number: 6420496
    Abstract: A curing agent for epoxy resins is prepared by (1) reacting a phenol and an aldehyde in the presence of a basic catalyst to form a first reaction product, (2) reacting the first reaction product with a polyamine or a polyamine-epoxy adduct to form a second reaction product containing unreacted primary amine groups, and (3) reacting the second reaction product with a proton donor compound having a pKa value of 11 or less to form the curing agent.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: July 16, 2002
    Assignee: Cognis Corporation
    Inventors: Robert M. Moon, Shailesh Shah, Anbazhagan Natesh, Gaetano D. DeAngelis, Joseph L. Mulvey, Ronald T. Cash, Jr.
  • Publication number: 20020066224
    Abstract: Blooming and/or syneresis in gel formulations can be reduced or eliminated by adding to an organic mixture an effective amount of a polyamide gelling agent having a softening point of less than about 105° C. wherein the polyamide is the reaction product of one or more diamines, optionally one or more mono-amines, one or more hydrogenated C36 dimer acids, optionally one or more C2-22 dicarboxylic acids, and optionally one or more C2-22 monocarboxylic acids.
    Type: Application
    Filed: June 13, 2001
    Publication date: June 6, 2002
    Inventors: Shailesh Shah, Sobhy El-Hefnawi, Douglas C. Rhubright
  • Patent number: 6365708
    Abstract: This invention relates to novel polyamines which are the reaction product of A) at least one nonaromatic diamine containing from 2 to 40 carbon atoms, wherein the amine groups are primary amine groups; and B) at least one epihalohydrin of the formula  where R is hydrogen or methyl and X is chlorine or bromine; and the coatings resulting from the reaction between the above reaction product and nonaromatic epoxy resins.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: April 2, 2002
    Assignee: Cognis Corporation
    Inventors: Shailesh Shah, Anbazhagan Natesh, Joseph Mulvey, Ronald C. LaFreeda, Gaetano D. DeAngelis, Ronald T. Cash, Jr.