Patents by Inventor Zahid Ali

Zahid Ali 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: 20140248252
    Abstract: The present invention is directed to 4-[2-(5-amino-1H-pyrazol-4-yl)-4-chlorophenoxy]-5-chloro-2-fluoro-N-(1,3-thiazol-4-yl)benzenesulfonamide or a pharmaceutically acceptable salt thereof for the treatment of a disease associated with elevated blood uric acid levels, such as hyperuricemia or gout. The invention is also directed to the tosylate salt of 4-[2-(5-amino-1H-pyrazol-4-yl)-4-chlorophenoxy]-5-chloro-2-fluoro-N-(1,3-thiazol-4-yl)benzenesulfonamide.
    Type: Application
    Filed: October 19, 2012
    Publication date: September 4, 2014
    Applicant: PFIZER LIMITED
    Inventors: Zahid Ali, Kenneth John Butcher, Richard Philip Butt, Stephen John Felstead, Sophie Glatt, Ruth Mitchell McKernan, Maninder Panesar
  • Patent number: 7601838
    Abstract: The present invention relates to antithrombotic compounds 2-alkyl aryl sulphonyl-1,2,3,4-tetrahydro-9H-pyrido(3,4-b)indole-3-carboxylic acid esters/amides, pharmaceutically acceptable salts and compositions thereof to be used in the treatment of intravascular thrombosis such as myocardial ischemia and stroke. The compound has the following general structure wherein R represents methyl ester or amide and R1 represents alkyl, aryl and heteroaryl moiety.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: October 13, 2009
    Assignee: Council of Scientific and Industrial Research
    Inventors: Stuti Gaur, Zeeshan Fatima, Anshuman Dixit, Zahid Ali, William Rascan Surin, Kapil Kappor, Kanta Bhutani, Mohammed Salim Ansari, Madhu Dikshit, Anil Kumar Saxena
  • Publication number: 20070287723
    Abstract: The present invention relates to antithrombotic compounds 2-alkyl aryl sulphonyl-1,2,3,4-tetrahydro-9H-pyrido(3,4-b) indole-3-carboxylic acid esters/amides, pharmaceutically acceptable salts and compositions thereof to be used in the treatment of intravascular thrombosis such as myocardial ischemia and stroke. The compound has the following general structure wherein R represents methyl ester or amide and R1 represents alkyl, aryl and heteroaryl moiety.
    Type: Application
    Filed: August 21, 2007
    Publication date: December 13, 2007
    Inventors: Stuti Gaur, Zeeshan Fatima, Anshuman Dixit, Zahid Ali, William Surin, Kapil Kapoor, Kanta Bhutani, Mohammed Ansari, Madhu Dikshit, Anil Saxena
  • Publication number: 20060142322
    Abstract: The present invention relates to antithrombotic compounds 2-alkyl aryl sulphonyl-1,2,3,4,-tetrahydro-9H-pyrido(3,4-b)indole-3-carboxylic acid esters/amides, pharmaceutically acceptable salts and compositions thereof to be used in the treatment of intravascular thrombosis such as myocardial ischemia and stroke. The compound has the following general structure wherein R represents methyl ester or amide and R1 represents alkyl, aryl and heteroaryl moiety.
    Type: Application
    Filed: December 28, 2004
    Publication date: June 29, 2006
    Inventors: Stuti Gaur, Zeeshan Fatima, Anshuman Dixit, Zahid Ali, William Surin, Kapil Kappor, Kanta Bhutani, Mohammed Ansari, Madhu Dikshit, Anil Saxena
  • Patent number: 6307926
    Abstract: An improved system for detecting and preventing telecommunications fraud prior to call connection, in which attempted calls are screened for fraud at the point of calling card validation in the SCP. The SCP accesses a database holding a variety of fraud decision nodes that may be interrelated and grouped together to cooperatively define fraud screening trees against which attempted calls may be tested. A fraud screening tree ultimately produces a fraud prediction based on a variety of information concerning the attempted call. The present invention therefore facilitates fraud screening with greater granularity and customization.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: October 23, 2001
    Assignee: Sprint Communications Company, L.P.
    Inventors: Richard Hillix Barton, Zahid Ali Abbasi, Isaac Shane Allen
  • Patent number: 6194303
    Abstract: A memory device consists of an array of resonant tunnel diodes in the form of pillars which are formed by selective etching. Each pillar includes first and second barriers (B1, B2) disposed between terminal regions (T1, T2) and a conductive region (CR1) between the barriers. The diameter of the pillars is typically of the order of 20-50 nm and is sufficiently small that the device exhibits first and second relatively high and low stable resistive states in the absence of an applied voltage between the terminal regions. The device can be used as a non-volatile memory at room temperature.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: February 27, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Bruce Alphenaar, Zahid Ali Khan Durrani
  • Patent number: 5811832
    Abstract: A memory device consists of an array of resonant tunnel diodes in the form of pillars which are formed by selective etching. Each pillar includes first and second barriers (B1, B2) disposed between terminal regions (T1, T2) and a conductive region (CR1) between the barriers. The diameter of the pillars is typically of the order of 20-50 nm and is sufficiently small that the device exhibits first and second relatively high and low stable resistive states in the absence of an applied voltage between the terminal regions. The device can be used as a non-volatile memory at room temperature.
    Type: Grant
    Filed: October 18, 1995
    Date of Patent: September 22, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Bruce Alphenaar, Zahid Ali Khan Durrani