Patents by Inventor Rajnikant Patel

Rajnikant Patel 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: 20100017008
    Abstract: A method (300, 400, 500, 1200) for offline/online monitoring of batch processes. The method involves (312) decomposing a time domain of a batch process run (BPR) into several blocks and (334) building multivariate statistical models (MSMs) for each of them using archived data for a batch process (ABPD). ABPD comprises stored data obtained during BPRs. The method also involves (506, 1204) retrieving recently stored data (RSD) for a recent fully performed BPR run (FPRNEW) or current BPR run. The method further involves (520, 1210) building a feature vector matrix (FVM) using RSD. FVM contains feature vectors representing statistical measures of wavelet coefficients determined for variables (v0, . . . , vJ). A projection (1100, 1150, 1190) is formed by projecting feature vectors onto at least one MSM or a combined multivariate statistical model (CMSM). CMSM is a weighted average of at least two MSMs.
    Type: Application
    Filed: July 17, 2008
    Publication date: January 21, 2010
    Inventors: Ramprasad Yelchuru, Srikanth Ryali, Shailesh Rajnikant Patel, Gudi Ravindra
  • Patent number: 7442837
    Abstract: The present invention relates to novel compounds of Formula (I), to a process for their manufacture, to pharmaceutical compositions containing them, and to their use in therapy, in particular their use in the prophylaxis and treatment of respiratory diseases.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: October 28, 2008
    Assignee: Glaxo Group Limited
    Inventors: Keith Biggadike, Diane Mary Coe, Dean David Edney, Stephen Barry Guntrip, Abigail Halton, Brian Edgar Looker, Michael John Monteith, Rebecca Jane Moore, Rajnikant Patel, Panayiotis Alexandrou Procopiou
  • Patent number: 7442719
    Abstract: The present invention relates to novel compounds of Formula (I), to a process for their manufacture, to pharmaceutical compositions containing them, and to their use in therapy, in particular their use in the prophylaxis and treatment of respiratory diseases.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: October 28, 2008
    Assignee: Glaxo Group Limited
    Inventors: Keith Biggadike, Diane Mary Coe, Dean David Edney, Stephen Barry Guntrip, Abigail Halton, Brian Edgar Looker, Michael John Monteith, Rebecca Jane Moore, Rajnikant Patel, Panayiotis Alexandrou Procopiou
  • Patent number: 7442836
    Abstract: The present invention relates to novel compounds of Formula (I), to a process for their manufacture, to pharmaceutical compositions containing them, and to their use in therapy, in particular their use in the prophylaxis and treatment of respiratory diseases.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: October 28, 2008
    Assignee: Glaxo Group Limited
    Inventors: Keith Biggadike, Diane Mary Coe, Dean David Edney, Stephen Barry Guntrip, Abigail Halton, Brian Edgar Looker, Michael John Monteith, Rebecca Jane Moore, Rajnikant Patel, Panayiotis Alexandrou Procopiou
  • Publication number: 20080020192
    Abstract: A multilayer porous membrane formed of an extrudable polymer is provided. The membrane is formed by co-extruding at least two compositions, each of which comprises a heated porogen and polymer while in contact with each other under conditions to minimize or prevent unstable interfacial flow between extruded layers. In a preferred embodiment, the two compositions are different such that the layers have a different average pore size.
    Type: Application
    Filed: December 21, 2005
    Publication date: January 24, 2008
    Inventors: Larry Yen, Rajnikant Patel
  • Publication number: 20070186775
    Abstract: Embodiments of the present invention provide low-profile surface mount filters. One embodiment of the present invention includes a filter housing adapted to mount on a substrate block having a plurality of flow paths and a filter cavity defined therein. The filter cavity is defined to extend in a generally horizontal direction when the low-profile filter is in use. A first flow passage is defined to connect an inlet of the filter housing to a first section of the filter cavity and a second flow passage is defined to connect a second section of the filter cavity to an outlet of the filter housing. A filter assembly is disposed in the filter cavity and sealed to the surface of the filter cavity separating the filter cavity into adjacent sections including the first section of the filter cavity and second section of the filter cavity.
    Type: Application
    Filed: February 10, 2006
    Publication date: August 16, 2007
    Inventors: Anthony DiPrizio, Nathan Abbott, Christopher Vroman, Rajnikant Patel, Eric McNamara
  • Publication number: 20070018958
    Abstract: A robotic system has been designed that can be used as a minimally invasive surgical device. The system has a master end and a slave end. The master end has five physical movements corresponding to physical movements at the slave end with five degrees of freedom. There is force feedback from the slave end to the master end for each physical movement. The interface can be one or more computers. The master end can be remote from the slave end and the slave end can be a surgical robot or a simulation program on a computer.
    Type: Application
    Filed: October 25, 2004
    Publication date: January 25, 2007
    Inventors: Seyed Tavakoli, Rajnikant Patel, Mehrdad Moallem
  • Publication number: 20070004807
    Abstract: The present invention relates to novel compounds of Formula (I), to a process for their manufacture, to pharmaceutical compositions containing them, and to their use in therapy, in particular their use in the prophylaxis and treatment of respiratory diseases.
    Type: Application
    Filed: August 19, 2005
    Publication date: January 4, 2007
    Inventors: Keith Biggadike, Diane Coe, Dean Edney, Stephen Guntrip, Abigai Halton, Brian Looker, Michael Monteith, Rebecca Moore, Rajnikant Patel, Panayiotis Procopiou
  • Publication number: 20060287389
    Abstract: The present invention relates to novel compounds of Formula (I), to a process for their manufacture, to pharmaceutical compositions containing them, and to their use in therapy, in particular their use in the prophylaxis and treatment of respiratory diseases.
    Type: Application
    Filed: June 27, 2006
    Publication date: December 21, 2006
    Applicant: Glaxo Group Limited
    Inventors: Keith BIGGADIKE, Diane Coe, Dean Edney, Stephen Guntrip, Abigail Halton, Brian Looker, Michael Monteith, Rebecca Moore, Rajnikant Patel, Panayiotis Procopiou
  • Publication number: 20060287286
    Abstract: The present invention relates to novel compounds of Formula (I), to a process for their manufacture, to pharmaceutical compositions containing them, and to their use in therapy, in particular their use in the prophylaxis and treatment of respiratory diseases.
    Type: Application
    Filed: June 27, 2006
    Publication date: December 21, 2006
    Applicant: Glaxo Group Limited
    Inventors: Keith BIGGADIKE, Diane Coe, Dean Edney, Stephen Guntrip, Abigail Halton, Brian Looker, Michael Monteith, Rebecca Moore, Rajnikant Patel, Panayiotis Procopiou
  • Publication number: 20060264643
    Abstract: The present invention provides an improved process for preparing (S)-4{[3-[2-(dimethylamino)ethyl]-1H-indol-5-yl]methyl}-2-oxazolidinone which comprises: a) forming a carbamate of formula (III), from methyl 4-nitro-(L)-phenylalaninate hydrochloride; b) reducing the compound of formula (III) to give the compound of formula (IV); c) reducing the methyl ester grouping in the compound of formula (IV) to give the compound of formula (V); d) ring closure of the compound of formula (V) to give the compound of formula (VI); e) diazonium salt formation from the compound of formula (VI) followed by reduction to give the compound of formula (VII); f) Fischer reaction of the compound of formula (VII) to give (S)-4{[3-[2-(dimethylamino)ethyl]-1H-indol-5-yl]methyl}2-oxazolidino
    Type: Application
    Filed: May 25, 2006
    Publication date: November 23, 2006
    Applicant: ASTRAZENECA UK LIMITED
    Inventor: Rajnikant Patel
  • Publication number: 20050230856
    Abstract: The present invention provides a perfluorinated thermoplastic hollow fiber (14) membrane gas-liquid shell side contactor (10) and a process for manufacturing the contactor (10) is described. The present invention also provides a device including a gas-liquid contactor (10) for producing ozonated water.
    Type: Application
    Filed: March 6, 2003
    Publication date: October 20, 2005
    Inventors: Bipin Parekh, Rajnikant Patel, Kwon-Shun Cheng
  • Publication number: 20050187274
    Abstract: The present invention provides an improved process for preparing (S)-4{[3-[2-(dimethylamino)ethyl]-1H-indol-5-yl]methyl}-2-oxazolidinone which comprises: a) forming a carbamate of formula (III), from methyl 4-nitro-(L)-phenylalaninate hydrochloride; b) reducing the compound of formula (III) to give the compound of formula (IV); c) reducing the methyl ester grouping in the compound of formula (IV) to give the compound of formula (V); d) ring closure of the compound of formula (V) to give the compound of formula (VI); e) diazonium salt formation from the compound of formula (VI) followed by reduction to give the compound of formula (VII); f) Fischer reaction of the compound of formula (VII) to give (S)-4{[3-[2-(dimethylamino)ethyl]-1H-indol-5-yl]methyl}2-oxazolidinone.
    Type: Application
    Filed: April 19, 2005
    Publication date: August 25, 2005
    Inventor: Rajnikant Patel
  • Patent number: 6909005
    Abstract: The present invention provides an improved (S)-4-{[3-[2-(dimethylamino)ethyl]-1H-indol-5-yl]methyl}-2-oxazolidinone product which is prepared by a method which comprises: a) forming a carbamate of formula (III), from methyl 4-nitro-(L)-phenylalaninate hydrochloride; b) reducing the compound of formula (III) to give the compound of formula (IV); c) reducing the methyl ester grouping in the compound of formula (IV) to give the compound of formula (V); d) ring closure of the compound of formula (V) to give the compound of formula (VI); e) diazonium salt formation from the compound of formula (VI) followed by reduction to give the compound of formula (VII); f) Fischer reaction of the compound of formula (VII) to give (S)-4-{[3-[2-(dimethylamino)ethyl]-1H-indol-5-yl]methyl}-2-oxazolidinone.
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: June 21, 2005
    Assignee: AstraZeneca UK Limited
    Inventor: Rajnikant Patel
  • Publication number: 20040180876
    Abstract: The present invention relates to novel compounds of Formula (I), to a process for their manufacture, to pharmaceutical compositions containing them, and to their use in therapy, in particular their use in the prophylaxis and treatment of respiratory diseases.
    Type: Application
    Filed: February 9, 2004
    Publication date: September 16, 2004
    Inventors: Keith Biggadike, Diane Mary Coe, Dean David Edney, Stephen Barry Guntrip, Abigail Halton, Brian Edgar Looker, Michael John Monteith, Rajnikant Patel, Panayiotis Alexandrou Procopiou
  • Patent number: 6303791
    Abstract: The invention provides an improved process for preparing compounds of formula (I)
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: October 16, 2001
    Assignee: Zeneca Limited
    Inventor: Rajnikant Patel
  • Patent number: 6160123
    Abstract: The present invention provides an improved process for preparing (S)-4-{[3-[2-(dimethylamino)ethyl]-1H-indol-5-yl]methyl}-2-oxazolidinone which comprises: a) forming a carbamate of formula (III), from methyl 4-nitro-(L)-phenylalaninate hydrochloride; b) reducing the compound of formula (III) to give the compound of formula (IV); c) reducing the methyl ester grouping in the compound of formula (IV) to give the compound of formula (V); d) ring closure of the compound of formula (V) to give the compound of formula (VI); e) diazonium salt formation from the compound of formula (VI) followed by reduction to give the compound of formula (VII); f) Fischer reaction of the compound of formula (VIl) to give (S)-4-{[3-[2-(dimethylamino)ethyl]-1H-indol-5-yl]methyl}-2-oxazolidinone.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: December 12, 2000
    Assignee: Zeneca, Ltd.
    Inventor: Rajnikant Patel
  • Patent number: 6084103
    Abstract: The present invention provides an improved process for preparing (S)-4-{[3-[2-(dimethylamino)ethyl]-1H-indol-5-yl]methyl}-2-oxazolidinone which comprises: a) forming a carbamate of formula (III), from methyl 4-nitro-(L)-phenylalaninate hydrochloride; b) reducing the compound of formula (III) to give the compound of formula (IV); c) reducing the methyl ester grouping in the compound of formula (IV) to give the compound of formula (V); d) ring closure of the compound of formula (V) to give the compound of formula (VI); e) diazonium salt formation from the compound of formula (VI) followed by reduction to give the compound of formula (VII); f) Fischer reaction of the compound of formula (VII) to give (S)-4-{[3-[2-(dimethylamino)ethyl]-1H-indol-5-yl]methyl}-2-oxazolidinone.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: July 4, 2000
    Assignee: Zeneca Limited
    Inventor: Rajnikant Patel
  • Patent number: 5840972
    Abstract: A process is disclosed for the preparation of N.sup.G -monoalkyl-L-arginine and related compounds and salts thereof, for example N.sup.G -monomethyl-L-arginine by reacting N-alkylaminoiminomethane sulphonic acid of formula (II) with an amino acid of formula (III).
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: November 24, 1998
    Assignee: Glaxo Wellcome Inc.
    Inventors: Rajnikant Patel, Amrik Singh Mahal, Donald Lloyd Winston Burford