Patents by Inventor Samir Kumar

Samir Kumar 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).

  • Patent number: 12397051
    Abstract: A novel transgene for use to produce a coronavirus vaccine is provided. The transgene encodes: i) an RNA polymerase promoter; ii) a 5? UTR; iii) a secretory sequence; iv) a coronavirus spike protein component, wherein the spike protein component incorporates a variant sequence at amino acid position 614 of a native spike protein; and v) a 3? UTR and poly A sequence. A vaccine is also provided comprising the transgene or an mRNA transcript thereof.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: August 26, 2025
    Assignee: Globe Biotech Limited
    Inventors: Kakon Nag, Juwel Chandra Baray, Maksudur Rahman Khan, Asif Mahmud, Enamul Haq Sarker, Samir Kumar, Jikrul Islam, Rony Roy, Mohammad Mohiuddin, Naznin Sultana
  • Patent number: 12315010
    Abstract: Systems and methods are directed to predicting temporal startup measurements using a machine-trained model. The system determines a training dataset of features associated with different funding, exit, and closure events and corresponding times of the funding, exit, and closure events from historical financial data. A temporal prediction model is trained using the training dataset. The temporal prediction model can comprise a recurrent neural network (e.g., gated recurrent unit). During runtime, the system accesses new data associated with potential future investment opportunities with startups and determines (e.g., compute) company features based, in part, on the new data. The system applies the company features to the temporal prediction model to simultaneously predict a next event and a time of the next event for each startup. A user interface can then be presented that shows the predicted next event and the predicted time of the predicted next event for each startup.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: May 27, 2025
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Avleen Singh Bijral, Lee Eric Feldman, Samir Kumar
  • Publication number: 20230410205
    Abstract: Systems and methods are directed to predicting temporal startup measurements using a machine-trained model. The system determines a training dataset of features associated with different funding, exit, and closure events and corresponding times of the funding, exit, and closure events from historical financial data. A temporal prediction model is trained using the training dataset. The temporal prediction model can comprise a recurrent neural network (e.g., gated recurrent unit). During runtime, the system accesses new data associated with potential future investment opportunities with startups and determines (e.g., compute) company features based, in part, on the new data. The system applies the company features to the temporal prediction model to simultaneously predict a next event and a time of the next event for each startup. A user interface can then be presented that shows the predicted next event and the predicted time of the predicted next event for each startup.
    Type: Application
    Filed: May 31, 2022
    Publication date: December 21, 2023
    Inventors: Avleen Singh BIJRAL, Lee Eric FELDMAN, Samir KUMAR
  • Patent number: 11773255
    Abstract: The invention provides a process for preparing core-shell composite particles comprising a polyester, polymerized ethylenically unsaturated silane compounds, and optionally a hydrophobic surface treatment. The invention further provides a composite particle comprising a polyester and a radically polymerized ethylenically unsaturated silane compound.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: October 3, 2023
    Inventors: Dmitry Fomitchev, Hairuo Tu, Paul S. Palumbo, Samir Kumar
  • Publication number: 20230084012
    Abstract: A novel transgene for use to produce a coronavirus vaccine is provided. The transgene encodes: i) an RNA polymerase promoter; ii) a 5? UTR; iii) a secretory sequence; iv) a coronavirus spike protein component, wherein the spike protein component incorporates a variant sequence at amino acid position 614 of a native spike protein; and v) a 3? UTR and poly A sequence. A vaccine is also provided comprising the transgene or an mRNA transcript thereof.
    Type: Application
    Filed: September 14, 2021
    Publication date: March 16, 2023
    Inventors: Kakon Nag, Juwel Chandra Baray, Maksudur Rahman Khan, Asif Mahmud, Enamul Haq Sarker, Samir Kumar, Jikrul Islam, Rony Roy, Mohammad Mohiuddin, Naznin Sultana
  • Patent number: 11091631
    Abstract: The invention provides a process for preparing core-shell composite particles comprising a polyester, polymerized ethylenically unsaturated silane compounds, and optionally a hydrophobic surface treatment. The invention further provides a composite particle comprising a polyester and a radically polymerized ethylenically unsaturated silane compound.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: August 17, 2021
    Assignee: Cabot Corporation
    Inventors: Dmitry Fomitchev, Hairuo Tu, Paul S. Palumbo, Samir Kumar
  • Publication number: 20210214551
    Abstract: The invention provides a process for preparing core-shell composite particles comprising a polyester, polymerized ethylenically unsaturated silane compounds, and optionally a hydrophobic surface treatment. The invention further provides a composite particle comprising a polyester and a radically polymerized ethylenically unsaturated silane compound.
    Type: Application
    Filed: December 23, 2020
    Publication date: July 15, 2021
    Inventors: Dmitry Fomitchev, Hairuo Tu, Paul S. Palumbo, Samir Kumar
  • Publication number: 20200048456
    Abstract: The invention provides a process for preparing core-shell composite particles comprising a polyester, polymerized ethylenically unsaturated silane compounds, and optionally a hydrophobic surface treatment. The invention further provides a composite particle comprising a polyester and a radically polymerized ethylenically unsaturated silane compound.
    Type: Application
    Filed: November 2, 2017
    Publication date: February 13, 2020
    Inventors: Dmitry Fomitchev, Hairuo Tu, Paul S. Palumbo, Samir Kumar
  • Patent number: 9754235
    Abstract: Various embodiments of a system and method for authoritative item identification based on facility operations are described. Embodiments may include an authoritative item identification component configured to, for each particular item of multiple items in inventory of a materials handling facility, determine multiple identifiers for the particular item, where one or more of the multiple identifiers are electronically obtained from a unit of the particular item during operations of the materials handling facility. The authoritative item identification component may, for each of the multiple identifiers, determine a quantity of instances in which that identifier was electronically obtained from a given unit of the particular item. The authoritative item identification component may, based on a statistical analysis of the quantities, determine one of the multiple identifiers as being an authoritative identifier for the particular item.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: September 5, 2017
    Assignee: Amazon Technologies, Inc.
    Inventors: Priya Padmanabhan, Samir Kumar, Alexander C. Prater, Prajakta Vaidya, Eric Young
  • Patent number: 9747440
    Abstract: Methods, systems and devices for generating data models in a client-cloud communication system may include applying machine learning techniques to generate a first family of classifier models that describe a cloud corpus of behavior vectors. Such vectors may be analyzed to identify factors in the first family of classifier models that have the highest probability of enabling a mobile device to better determine whether a mobile device behavior is malicious or benign. Based on this analysis, a second family of classifier models may be generated that identify significantly fewer factors and data points as being relevant for enabling the mobile device to better determine whether the mobile device behavior is malicious or benign based on the determined factors. A mobile device classifier module based on the second family of classifier models may be generated and made available for download by mobile devices, including devices contributing behavior vectors.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: August 29, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Rajarshi Gupta, Mark Bapst, Mohammad H Reshadi, Samir Kumar
  • Patent number: 9372466
    Abstract: A cleaning blade lubricant including an acicular shape lubricant is provided. The cleaning blade lubricant is applied to a cleaning blade of an electrophotographic printing device for improving the cleaning performance of a cleaning blade of an electrophotographic printing device.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: June 21, 2016
    Assignee: XEROX CORPORATION
    Inventors: Michael F Zona, Juan A Morales-Tirado, Samir Kumar
  • Patent number: 9335667
    Abstract: A two component development system includes a plurality of toner particles that include a colorant and a plurality of toner carrier particles that include a magnetic carrier core having a D50 diameter in a range from about 30 microns to about 40 microns, and a surfactant-polymer coating, the coating being present in an amount in a range from about 0.5 percent by weight to about 1.5 percent by weight of the toner carrier particle.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: May 10, 2016
    Assignee: XEROX CORPORATION
    Inventors: Michael F. Zona, Brian S. Giannetto, Bernard A. Kelly, Brian E. Moore, Juan A. Morales-Tirado, Samir Kumar, Elizabeth K. Priebe
  • Patent number: 9176403
    Abstract: A process includes forming, by emulsion polymerization, polymer resin particles in a latex, the polymer resin particles being formed from a mixture including one or more monomer emulsions and a non-surfactant-based charge control agent, the emulsion polymerization is carried out with a solids content in a range from about 10 to about 30 percent by weight of the mixture, and forming toner particles from the polymer resin particles, the toner particles support a sufficient triboelectric charge for use under A-zone environmental conditions in a single-component development system.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: November 3, 2015
    Assignee: XEROX CORPORATION
    Inventors: Karen Moffat, Shigang Steven Qiu, Samir Kumar, Robert D. Bayley, Grazyna E. Kmiecik-Lawrynowicz, Maura A. Sweeney
  • Patent number: 9164410
    Abstract: A toner composition with a novel surface additive package for developing images is provided. The additive package comprises a sol-gel silica, a PDMS silica, an HMDS silica, and an organic spacer such as PMMA, and melamine. The toner composition exhibits improved properties and are useful for high speed printing on Single Component Development systems.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: October 20, 2015
    Assignee: XEROX CORPORATION
    Inventors: Grazyna E. Kmiecik-Lawrynowicz, Maura A. Sweeney, Daniel W. Asarese, Samir Kumar
  • Publication number: 20150220012
    Abstract: Hyperpigmented magenta toner, that is indistinguishable from standard and conventional magenta toner, contains PR122 and PR260 in a 56:44 weight ratio and can be used with reduced TMA as compared to conventional magenta toner.
    Type: Application
    Filed: February 6, 2014
    Publication date: August 6, 2015
    Applicant: Xerox Corporation
    Inventors: Padam K Angra, Samir Kumar, Christopher M Wolfe, Brendan H Williamson
  • Patent number: 9029057
    Abstract: Emulsion aggregation toner comprising: a resin; a wax; a colorant; an encapsulating shell; and a silica external additive comprising: first silica particles comprising fumed silica particles surface treated with octyldimethylsiloxane and having average particle diameter about 6-20 nm, present in amount of about 0.1-1% by weight of the toner; second silica particles comprising colloidal silica particles surface treated with hexamethyldisiloxane and having average particle diameter about 80-200 nm, present in amount of about 1-2% by weight of the toner; third silica particles comprising fumed silica particles surface treated with polydimethylsiloxane and having average particle diameter about 25-65 nm, present in amount of from about 0.5-1.5% by weight of the toner; and fourth silica particles comprising fumed silica particles surface treated with hexamethyldisiloxane and having average particle diameter about 25-65 nm, present in amount of about 1-2.5% by weight of the toner.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: May 12, 2015
    Assignee: Xerox Corporation
    Inventors: Grazyna E. Kmiecik-Lawrynowicz, Maura A. Sweeney, Samir Kumar, Daniel W. Asarese
  • Publication number: 20150086916
    Abstract: Toner compositions that having spherical particles and provide stable density. The toner compositions also comprise and deliver a silicone oil to the cleaning subsystem in the image forming apparatus by incorporating an inorganic fine powder additive package that has been mixed with silicone oil in a manner such that the toner is blended with the inorganic fine powder and silicone oil.
    Type: Application
    Filed: September 20, 2013
    Publication date: March 26, 2015
    Applicant: XEROX CORPORATION
    Inventors: JUAN A. MORALES-TIRADO, Mark E. Mang, Michael F. Zona, Samir Kumar, Susan J. LaFica
  • Patent number: 8980519
    Abstract: A toner composition includes a resin, optionally a wax, a colorant, and an acicular surface additive. The toner composition is suitable for use in a single component development system and which composition possesses excellent charging, stability, and flow characteristics.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: March 17, 2015
    Assignee: Xerox Corporation
    Inventors: Juan A. Morales-Tirado, Samir Kumar, Michael F. Zona
  • Patent number: 8974999
    Abstract: Toner compositions that having spherical particles and provide stable density. The toner compositions also comprise and deliver a silicone oil to the cleaning subsystem in the image forming apparatus by incorporating an inorganic fine powder additive package that has been mixed with silicone oil in a manner such that the toner is blended with the inorganic fine powder and silicone oil.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: March 10, 2015
    Assignee: Xerox Corporation
    Inventors: Juan A. Morales-Tirado, Mark E. Mang, Michael F. Zona, Samir Kumar, Susan J. LaFica
  • Publication number: 20150024323
    Abstract: A process includes forming, by emulsion polymerization, polymer resin particles in a latex, the polymer resin particles being formed from a mixture including one or more monomer emulsions and a non-surfactant-based charge control agent, the emulsion polymerization is carried out with a solids content in a range from about 10 to about 30 percent by weight of the mixture, and forming toner particles from the polymer resin particles, the toner particles support a sufficient triboelectric charge for use under A-zone environmental conditions in a single-component development system.
    Type: Application
    Filed: July 16, 2013
    Publication date: January 22, 2015
    Inventors: KAREN MOFFAT, SHIGANG STEVEN QIU, SAMIR KUMAR, ROBERT D. BAYLEY, GRAZYNA E. KMIECIK-LAWRYNOWICZ, MAURA A. SWEENEY