Patents by Inventor Arun Kumar Gupta
Arun Kumar Gupta 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).
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Patent number: 9263973Abstract: A MEMS electrostatic actuator includes a bottom plate affixed to a substrate and a top plate suspended above the bottom plate. The top plate has a parallel plate center section and two rotating members electrically connected to the center section. Each rotating member is attached centrally of the rotating member for rotation about an axis of rotation to a set of anchor posts. The attachment includes at least one pair of torsional springs attached along each axis, each spring comprising a rectangular metal square that twists as the rotational members rotate. Electrostatic pull-down electrodes are underneath each rotational member.Type: GrantFiled: April 21, 2015Date of Patent: February 16, 2016Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Arun Kumar Gupta, William Craig McDonald
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Patent number: 9190982Abstract: A MEMS mixer filter including an array of a multiplicity of resonator elements with conductive outer surfaces in a coplanar rectangularly tiled array, and two sets of DC bias lines in which alternating resonator elements in each row and column are connected to one or the other sets of bias lines so that laterally adjacent resonators may be biased to a DC potential. The resonator elements are uniform in size and shape. Lateral dimensions of the resonator elements are between 5 and 50 microns. The resonator elements are between 100 nanometers and 100 microns thick, and adjacent resonator elements are separated by a gap between 100 and 500 nanometers. A process of forming the MEMS mixer filter.Type: GrantFiled: October 5, 2012Date of Patent: November 17, 2015Assignee: TEXAS INSTRUMENTS INCORPORATEDInventor: Arun Kumar Gupta
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Publication number: 20150297568Abstract: The present disclosure is generally directed to antiviral compounds, and more specifically directed to combinations of compounds which can inhibit the function of the NS5A protein encoded by Hepatitis C virus (HCV), compositions comprising such combinations, and methods for inhibiting the function of the NS5A protein.Type: ApplicationFiled: June 29, 2015Publication date: October 22, 2015Inventors: Piyasena Hewawasam, Omar D. Lopez, Yong Tu, Alan Xiangdong Wang, Ningning Xu, John F. Kadow, Nicholas A. Meanwell, Samayamunthula Venkata Satya Arun Kumar Gupta, Indasi J. Gopi Kumar, Suresh Kumar Ponugupati, Makonen Belema
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Publication number: 20150229241Abstract: A MEMS electrostatic actuator includes a bottom plate affixed to a substrate and a top plate suspended above the bottom plate. The top plate has a parallel plate center section and two rotating members electrically connected to the center section. Each rotating member is attached centrally of the rotating member for rotation about an axis of rotation to a set of anchor posts. The attachment includes at least one pair of torsional springs attached along each axis, each spring comprising a rectangular metal square that twists as the rotational members rotate. Electrostatic pull-down electrodes are underneath each rotational member.Type: ApplicationFiled: April 21, 2015Publication date: August 13, 2015Inventors: Arun Kumar Gupta, William Craig McDonald
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Publication number: 20150210703Abstract: The present invention provides compounds of formula (I) and pharmaceutically acceptable salts thereof. The formula I compounds inhibit tyrosine kinase activity of JAK3, thereby making them useful for the treatment of inflammatory and autoimmune diseases.Type: ApplicationFiled: September 5, 2013Publication date: July 30, 2015Inventors: Bingwei Vera Yang, Gregory D. Brown, Arun Kumar Gupta, William J. Pitts
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Publication number: 20150023913Abstract: The present disclosure is generally directed to antiviral compounds, and more specifically directed to combinations of compounds which can inhibit the function of the NS5A protein encoded by Hepatitis C virus (HCV), compositions comprising such combinations, and methods for inhibiting the function of the NS5A protein.Type: ApplicationFiled: July 2, 2013Publication date: January 22, 2015Inventors: Piyasena Hewawasam, Omar D. Lopez, Yong Tu, Alan Xiangdong Wang, Ningning Xu, John F. Kadow, Nicholas A. Meanwell, Samayamuthula Venkata Satya Arun Kumar Gupta, Indasi J. Gopi Kumar, Suresh Kumar Ponugupati, Makonen Belema
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Patent number: 8371904Abstract: A polishing head is presented. The polishing head includes a housing having top and bottom surfaces. The housing is formed from a single piece of material. The polishing head includes grooves disposed on the bottom surface and an inlet in communication with the grooves for coupling to a pressure medium supply to supply a pressure medium to the grooves. The pressure medium when supplied to the grooves exerts pressure on a template when attached to the bottom surface to provide back side pressure on a back surface of an article when temporally attached to the template.Type: GrantFiled: August 8, 2008Date of Patent: February 12, 2013Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.Inventors: Sunil Kumar Jindal, Arun Kumar Gupta
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Publication number: 20120195857Abstract: The present disclosure relates to compounds, compositions and methods for the treatment of hepatitis C virus (HCV) infection. Also disclosed are pharmaceutical compositions containing such compounds and methods for using these compounds in the treatment of HCV infection.Type: ApplicationFiled: August 4, 2011Publication date: August 2, 2012Inventors: Makonen Belema, Pothukanuri Srinivasu, John A. Bender, Omar D. Lopez, Qi Chen, Richard A. Rampulla, Samayamunthula Venkata Satya Arun Kumar Gupta, Nicholas A. Meanwell
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Patent number: 7994328Abstract: The present invention relates to an improved process for the preparation of 1-benzyl-4-[(5,6-dimethoxy-1-indanon)-2-yl]methylpiperidine hydrochloride of Formula I.Type: GrantFiled: February 8, 2007Date of Patent: August 9, 2011Assignee: Aurobindo Pharma Ltd.Inventors: Mahesh Nagarimadugu, Arun Kumar Gupta, Ramesh Dandala, Sivakumaran Meenakshisunderam
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Publication number: 20100035527Abstract: A polishing head is presented. The polishing head includes a housing having top and bottom surfaces. The housing is formed from a single piece of material. The polishing head includes grooves disposed on the bottom surface and an inlet in communication with the grooves for coupling to a pressure medium supply to supply a pressure medium to the grooves. The pressure medium when supplied to the grooves exerts pressure on a template when attached to the bottom surface to provide back side pressure on a back surface of an article when temporally attached to the template.Type: ApplicationFiled: August 8, 2008Publication date: February 11, 2010Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING, LTD.Inventors: Sunil Kumar JINDAL, Arun Kumar GUPTA
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Patent number: 7601869Abstract: The present invention relates to a method for the preparation of Florfenicol from Fluoroamine compound, namely (1R,2S)-1-[4-(methylsulfonyl)phenyl]-2-amino-3-fluoro-1-propanol (II), by reaction with dihaloacetic acid ester in an organic solvent in presence of an inorganic base.Type: GrantFiled: June 12, 2006Date of Patent: October 13, 2009Assignee: Aurobindo Pharma Ltd.Inventors: Mallikarjuna Reddy Karuru, Arun Kumar Gupta, Sivakumaran Meenakshisunderam
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Publication number: 20090043131Abstract: The present invention relates to a method for the preparation of Florfenicol from Fluoroamine compound, namely (1R,2S)-1-[4-(methylsulfonyl)phenyl]-2-amino-3-fluoro-1-propanol (II), by reaction with dihaloacetic acid ester in an organic solvent in presence of an inorganic base.Type: ApplicationFiled: June 12, 2006Publication date: February 12, 2009Applicant: AUROBINDO PHARMA LIMITEDInventors: Mallikarjuna Reddy Karuru, Arun Kumar Gupta, Sivakumaran Meenakshisunderam
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Patent number: 7126005Abstract: The present invention is directed to a new process of preparing highly pure Florfenicol. The invention is further directed to new oxazolidine derivatives useful in making Florfenicol and processes of making these derivatives. Examples of such intermediates include (4R,5R)-3-acetyl-2,2-dimethyl-4-hydroxymethyl-5-[4-(methylsulfonyl)phenyl]-1,3-oxazolidine; and (4S,5R)-3-acetyl-2,2-dimethyl-4-fluoromethyl-5-[4-(methylsulfonyl)phenyl]-1,3-oxazolidine.Type: GrantFiled: December 16, 2003Date of Patent: October 24, 2006Assignee: Aurobindo Pharma LimitedInventors: Vijay Kumar Handa, Arun Kumar Gupta, Meenakshisunderam Sivakumaran
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Patent number: 6990492Abstract: A method for controlling access to information, which includes a plurality of data objects, on a computer system being accessible to a plurality of users is provided which generally comprises providing an access right for each relationship between a user and a data object, wherein each user can have a plurality of relationships to each data object, determining each relationship between the user and the data object when a user requests information about a data object, determining the security classification for each relationship between the user and the data object, and then granting the user access to the data object if one of the security classifications for all the relationships is equal to or greater than the security classification of the data object, and denying the user access to the data object if the security classifications for all the relationships is less than the security classification of the data object.Type: GrantFiled: January 31, 2003Date of Patent: January 24, 2006Assignee: International Business Machines CorporationInventor: Arun Kumar Gupta
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Publication number: 20030167269Abstract: A method for controlling access to information, which includes a plurality of data objects, on a computer system being accessible to a plurality of users is provided which generally comprises providing an access right for each relationship between a user and a data object, wherein each user can have a plurality of relationships to each data object, determining each relationship between the user and the data object when a user requests information about a data object, determining the security classification for each relationship between the user and the data object, and then granting the user access to the data object if one of the security classifications for all the relationships is equal to or greater than the security classification of the data object, and denying the user access to the data object if the security classifications for all the relationships is less than the security classification of the data object.Type: ApplicationFiled: January 31, 2003Publication date: September 4, 2003Inventor: Arun Kumar Gupta
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Patent number: 6516315Abstract: A method for controlling access to information, which includes a plurality of data objects, on a computer system being accessible to a plurality of users is provided which generally comprises providing an access right for each relationship between a user and a data object, wherein each user can have a plurality of relationships to each data object, determining each relationship between the user and the data object when a user requests information about a data object, determining the security classification for each relationship between the user and the data object, and then granting the user access to the data object if one of the security classifications for all the relationships is equal to or greater than the security classification of the data object, and denying the user access to the data object if the security classifications for all the relationships is less than the security classification of the data object.Type: GrantFiled: November 5, 1999Date of Patent: February 4, 2003Assignee: NeuVis, Inc.Inventor: Arun Kumar Gupta