Patents by Inventor Navjot Singh

Navjot Singh 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: 20060075497
    Abstract: A method for detecting intrusions that employ messages of two or more protocols is disclosed. Such intrusions might occur in Voice over Internet Protocol (VoIP) systems, as well as in systems in which two or more protocols support some service other than VoIP. In the illustrative embodiment of the present invention, a stateful intrusion-detection system is capable of employing rules that have cross-protocol pre-conditions. The illustrative embodiment can use such rules to recognize a variety of VoIP-based intrusion attempts, such as call hijacking, BYE attacks, etc. In addition, the illustrative embodiment is capable of using such rules to recognize other kinds of intrusion attempts in which two or more protocols support a service other than VoIP. The illustrative embodiment also comprises a stateful firewall that is capable of employing rules with cross-protocol pre-conditions.
    Type: Application
    Filed: September 30, 2004
    Publication date: April 6, 2006
    Applicant: Avaya Technology Corp.
    Inventors: Sachin Garg, Navjot Singh, Timothy Tsai, Yu-Sung Wu, Saurabh Bagchi
  • Publication number: 20050265349
    Abstract: A method for Real-time Transport Protocol (RTP) packet authentication on a packet data network. In particular, the invention relates to a method for preventing toll fraud, privacy compromise, voice quality degradation, or denial of service (DoS) on Voice over IP networks. The Real-time Transport Protocol (RTP) is susceptible to several security attacks, including thirdparty snooping of private conversations, injection of forged content, and introduction or modification of packets to degrade voice quality. The Secure Real-time Transport Protocol (SRTP) provides confidentiality, message authentication, and replay protection for RTP traffic. However, SRTP incurs an additional overhead to verify the HMAC-SHA1 message authentication code for each packet. SRTP+ significantly decrease the verification overhead compared to SRTP and thereby increases the number of faked packets required to mount a successful denial of service attack. SRTP+ provides packet authentication but not integrity.
    Type: Application
    Filed: May 27, 2004
    Publication date: December 1, 2005
    Inventors: Sachin Garg, Navjot Singh, Timothy Tsai
  • Patent number: 6913380
    Abstract: High levels of treated fumed silica, processing fluid and high molecular weight silicone polymer are continuously compounded into a homogeneous silica filled heat-vulcanizable silicone composition by forming a premix in a continuous annular layer mixer and continuously discharging the premix into a compounding apparatus for compounding to form the filled heat-vulcanizable silicone composition.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: July 5, 2005
    Assignee: General Electric Company
    Inventors: Jodi Boffard, Navjot Singh, Alan L. Tate, Robert Dean, Devesh Mathur
  • Publication number: 20050005152
    Abstract: A method and apparatus for automatically determining whether a security vulnerability alert is relevant to a device (e.g., personal computer, server, personal digital assistant [PDA], etc.), and automatically retrieving the associated software patches for relevant alerts, are disclosed. The illustrative embodiment intelligently determines whether the software application specified by a security vulnerability alert is resident on the device, whether the version of the software application on the device matches that of the security vulnerability alert, and whether the device's hardware platform and operating system match those of the security vulnerability alert.
    Type: Application
    Filed: July 1, 2003
    Publication date: January 6, 2005
    Inventors: Navjot Singh, Timothy Tsai
  • Publication number: 20040257905
    Abstract: High levels of treated fumed silica, processing fluid and high molecular weight silicone polymer are continuously compounded into a homogeneous silica filled heat-vulcanizable silicone composition by forming a premix in a continuous annular layer mixer and continuously discharging the premix into a compounding apparatus for compounding to form the filled heat-vulcanizable silicone composition.
    Type: Application
    Filed: July 2, 2004
    Publication date: December 23, 2004
    Inventors: Jodi Boffard, Navjot Singh, Alan L. Tate, Robert Dean, Devesh Mathur
  • Patent number: 6797796
    Abstract: Condensation curable poly(fluoroorgano)siloxane-poly(silarylene)siloxane block copolymer compositions having a glass transition temperature not exceeding about −54° C. and excellent solvent resistance have been found useful as sealants. Polyalkoxysilylorgano compounds, such as 1,4-bis[trimethoxysilyl(ethyl)]benzene have been found to be effective as cross-linkers.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: September 28, 2004
    Assignee: General Electric Company
    Inventors: Navjot Singh, John Thomas Leman, John M. Whitney, Herman Otto Krabbenhoft
  • Patent number: 6713532
    Abstract: Solid blends of rubbery polymers and amorphous or crystalline polymers, said blends being free-flowing at temperatures lower than the glass transition temperature or crystalline melting temperature of the amorphous or crystalline polymer, are prepared by intimate mixing procedures. In general, said mixing conditions include high shear conditions sufficient to convert polymer A to dispersed particles coated with polymer B and produce a free-flowing powder blend.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: March 30, 2004
    Assignee: General Electric Company
    Inventors: Navjot Singh, Joseph Michael Anostario
  • Patent number: 6689613
    Abstract: A combinatorial method is provided for the preparation and screening of heterogeneous catalysts. The method comprises the steps of: (I) providing a library of elemental catalysts; (II) reacting the catalysts with a carbon source to form product directly on the catalyst; and (III) screening the products to evaluate the catalysts.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: February 10, 2004
    Assignee: General Electric Company
    Inventors: Xiao-Dong Sun, Navjot Singh
  • Patent number: 6686311
    Abstract: A catalyst system and method for making carbon fibrils is provided which comprises a catalytic amount of an inorganic catalyst comprising nickel and one of the following substances selected from the group consisting of chromium; chromium and iron; chromium and molybdenum; chromium, molybdenum, and iron; aluminum; yttrium and iron; yttrium, iron and aluminum; zinc; copper; yttrium; yttrium and chromium; and yttrium, chromium and zinc. In a further aspect of the invention, a catalyst system and method is provided for making carbon fibrils which comprises a catalytic amount of an inorganic catalyst comprising cobalt and one of the following substances selected from the group consisting of chromium; aluminum; zinc; copper; copper and zinc; copper, zinc, and chromium; copper and iron; copper, iron, and aluminum; copper and nickel; and yttrium, nickel and copper.
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: February 3, 2004
    Assignee: General Electric Company
    Inventors: Xiao-Dong Sun, Navjot Singh, Lionel Monty Levinson
  • Publication number: 20040007694
    Abstract: A catalyst system and method for making carbon fibrils is provided which comprises a catalytic amount of an inorganic catalyst comprising nickel and one of the following substances selected from the group consisting of chromium; chromium and iron; chromium and molybdenum; chromium, molybdenum, and iron; aluminum; yttrium and iron; yttrium, iron and aluminum; zinc; copper; yttrium; yttrium and chromium; and yttrium, chromium and zinc. In a further aspect of the invention, a catalyst system and method is provided for making carbon fibrils which comprises a catalytic amount of an inorganic catalyst comprising cobalt and one of the following substances selected from the group consisting of chromium; aluminum; zinc; copper; copper and zinc; copper, zinc, and chromium; copper and iron; copper, iron, and aluminum; copper and nickel; and yttrium, nickel and copper.
    Type: Application
    Filed: December 16, 2002
    Publication date: January 15, 2004
    Inventors: Xiao-Dong Sun, Navjot Singh, Lionel Monty Levinson
  • Patent number: 6646052
    Abstract: Solid blends of rubbery polymers and amorphous or crystalline polymers, said blends being free-flowing at temperatures lower than the glass transition temperature or crystalline melting temperature of the amorphous or crystalline polymer, are prepared by intimate mixing procedures. In general, said mixing conditions include high shear conditions sufficient to convert polymer A to dispersed particles coated with polymer B and produce a free-flowing powder blend.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: November 11, 2003
    Assignee: General Electric Company
    Inventors: Navjot Singh, Joseph Michael Anostario
  • Patent number: 6646090
    Abstract: Condensation curable poly(fluoroorgano)siloxane-poly(silarylene)siloxane block copolymer compositions having a glass transition temperature not exceeding about −54° C. and excellent solvent resistance have been found useful as sealants. Polyalkoxysilylorgano compounds, such as 1,4-bis[trimethoxysilyl(ethyl)]benzene have been found to be effective as cross-linkers.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: November 11, 2003
    Assignee: General Electric Company
    Inventors: Navjot Singh, John Thomas Leman, John M. Whitney, Herman Otto Krabbenhoft
  • Publication number: 20030162902
    Abstract: Solid blends of rubbery polymers and amorphous or crystalline polymers, said blends being free-flowing at temperatures lower than the glass transition temperature or crystalline melting temperature of the amorphous or crystalline polymer, are prepared by intimate mixing procedures. In general, said mixing conditions include high shear conditions sufficient to convert polymer A to dispersed particles coated with polymer B and produce a free-flowing powder blend.
    Type: Application
    Filed: February 28, 2003
    Publication date: August 28, 2003
    Inventors: Navjot Singh, Joseph Michael Anostario
  • Publication number: 20030149163
    Abstract: A catalyst system and method for making carbon fibrils is provided which comprises a catalytic amount of an inorganic catalyst comprising nickel and one of the following substances selected from the group consisting of chromium; chromium and iron; chromium and molybdenum; chromium, molybdenum, and iron; aluminum; yttrium and iron; yttrium, iron and aluminum; zinc; copper; yttrium; yttrium and chromium; and yttrium, chromium and zinc. In a further aspect of the invention, a catalyst system and method is provided for making carbon fibrils which comprises a catalytic amount of an inorganic catalyst comprising cobalt and one of the following substances selected from the group consisting of chromium; aluminum; zinc; copper; copper and zinc; copper, zinc, and chromium; copper and iron; copper, iron, and aluminum; copper and nickel; and yttrium, nickel and copper.
    Type: Application
    Filed: December 16, 2002
    Publication date: August 7, 2003
    Inventors: Xiao-Dong Sun, Navjot Singh, Lionel Monty Levinson
  • Publication number: 20030130466
    Abstract: Condensation curable poly(fluoroorgano)siloxane-poly(silarylene)siloxane block copolymer compositions having a glass transition temperature not exceeding about −54° C. and excellent solvent resistance have been found useful as sealants. Polyalkoxysilylorgano compounds, such as 1,4-bis[trimethoxysilyl(ethyl)]benzene have been found to be effective as cross-linkers.
    Type: Application
    Filed: July 23, 2002
    Publication date: July 10, 2003
    Inventors: Navjot Singh, John Thomas Leman, John M. Whitney, Herman Otto Krabbenhoft
  • Publication number: 20030104935
    Abstract: A catalyst system and method for making carbon fibrils is provided which comprises a catalytic amount of an inorganic catalyst comprising nickel and one of the following substances selected from the group consisting of chromium; chromium and iron; chromium and molybdenum; chromium, molybdenum, and iron; aluminum; yttrium and iron; yttrium, iron and aluminum; zinc; copper; yttrium; yttrium and chromium; and yttrium, chromium and zinc. In a further aspect of the invention, a catalyst system and method is provided for making carbon fibrils which comprises a catalytic amount of an inorganic catalyst comprising cobalt and one of the following substances selected from the group consisting of chromium; aluminum; zinc; copper; copper and zinc; copper, zinc, and chromium; copper and iron; copper, iron, and aluminum; copper and nickel; and yttrium, nickel and copper.
    Type: Application
    Filed: December 11, 2002
    Publication date: June 5, 2003
    Inventors: Xiao-Dong Sun, Navjot Singh, Lionel Monty Levinson
  • Publication number: 20030104934
    Abstract: A catalyst system and method for making carbon fibrils is provided which comprises a catalytic amount of an inorganic catalyst comprising nickel and one of the following substances selected from the group consisting of chromium; chromium and iron; chromium and molybdenum; chromium, molybdenum, and iron; aluminum; yttrium and iron; yttrium, iron and aluminum; zinc; copper; yttrium; yttrium and chromium; and yttrium, chromium and zinc. In a further aspect of the invention, a catalyst system and method is provided for making carbon fibrils which comprises a catalytic amount of an inorganic catalyst comprising cobalt and one of the following substances selected from the group consisting of chromium; aluminum; zinc; copper; copper and zinc; copper, zinc, and chromium; copper and iron; copper, iron, and aluminum; copper and nickel; and yttrium, nickel and copper.
    Type: Application
    Filed: December 11, 2002
    Publication date: June 5, 2003
    Inventors: Xiao-Dong Sun, Navjot Singh, Lionel Monty Levinson
  • Publication number: 20030104933
    Abstract: A catalyst system and method for making carbon fibrils is provided which comprises a catalytic amount of an inorganic catalyst comprising nickel and one of the following substances selected from the group consisting of chromium; chromium and iron; chromium and molybdenum; chromium, molybdenum, and iron; aluminum; yttrium and iron; yttrium, iron and aluminum; zinc; copper; yttrium; yttrium and chromium; and yttrium, chromium and zinc. In a further aspect of the invention, a catalyst system and method is provided for making carbon fibrils which comprises a catalytic amount of an inorganic catalyst comprising cobalt and one of the following substances selected from the group consisting of chromium; aluminum; zinc; copper; copper and zinc; copper, zinc, and chromium; copper and iron; copper, iron, and aluminum; copper and nickel; and yttrium, nickel and copper.
    Type: Application
    Filed: December 11, 2002
    Publication date: June 5, 2003
    Inventors: Xiao-Dong Sun, Navjot Singh, Lionel Monty Levinson
  • Patent number: 6573342
    Abstract: Solid blends of rubbery polymers and amorphous or crystalline polymers, said blends being free-flowing at temperatures lower than the glass transition temperature or crystalline melting temperature of the amorphous or crystalline polymer, are prepared by intimate mixing procedures. In general, said mixing conditions include high shear conditions sufficient to convert polymer A to dispersed particles coated with polymer B and produce a free-flowing powder blend.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: June 3, 2003
    Assignee: General Electric Company
    Inventors: Navjot Singh, Joseph Michael Anostario
  • Publication number: 20030037289
    Abstract: Fault tolerance is improved in a computing system which includes one or more computing machines by (i) executing a control thread or other control program in conjunction with a fault tolerance software system running on at least one of the machines, and (ii) initiating via the control program a test script program which sends one or more requests to a monitored program. The test script program also processes corresponding responses to the one or more requests, and generates a return value utilizable by the control program to indicate a failure condition in the monitored program. The computing system may be configured in accordance with a client-server architecture, with the fault tolerance software system and the monitored program both running on a server of the system.
    Type: Application
    Filed: August 8, 2001
    Publication date: February 20, 2003
    Inventors: Navjot Singh, Timothy Tsai