Patents by Inventor Sergey Shevchenko

Sergey Shevchenko 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: 20190393374
    Abstract: A radiation detector comprises an antenna structure; and a field effect transistor structure having a source region, a gate region, and a drain region, arranged on a substrate and forming mutually independent electrically conductive electrode structures through metallization, wherein the gate electrode structure completely encloses the source electrode structure or the drain electrode structure in a first plane; the enclosed electrode structure extends up to above the gate electrode structure and there overlaps the enclosure in a second plane above the first plane at least in sections in a planar manner; wherein an electrically insulating region for forming a capacitor with a metal-insulator-metal structure is arranged between the regions of the gate electrode structure overlapped by the enclosed electrode structure.
    Type: Application
    Filed: January 10, 2018
    Publication date: December 26, 2019
    Applicant: FORSCHUNGSVERBUND BERLIN E.V.
    Inventors: Adam RĂ„MER, Sergey SHEVCHENKO
  • Patent number: 9372681
    Abstract: A method includes declaring, in a manifest of an application, a document URL type. The application is configured for native operation outside a web browser on a user's computing device and is coded to open a document corresponding to a document URL which conforms to the declared document URL type in the manifest. The method further includes providing the application for installation on the user's computing device.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: June 21, 2016
    Assignee: GOOGLE INC.
    Inventors: Sergey Shevchenko, Sriram Saroop
  • Patent number: 8617356
    Abstract: Compositions and processes that enhance the brightness and improve color of pulp or paper when applied during different stages of the papermaking process involving optical brighteners are identified. Used in combination with optical brighteners and/or chelants the described agents produce a synergistic effect not previously identified in the paper process.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: December 31, 2013
    Assignee: Nalco Company
    Inventors: Prasad Duggirala, Sergey Shevchenko
  • Publication number: 20120211185
    Abstract: Compositions and processes that enhance the brightness and improve color of pulp or paper when applied during different stages of the papermaking process involving optical brighteners are identified. Used in combination with optical brighteners and/or chelants the described agents produce a synergistic effect not previously identified in the paper process.
    Type: Application
    Filed: April 30, 2012
    Publication date: August 23, 2012
    Inventors: Prasad Duggirala, Sergey Shevchenko
  • Patent number: 8246780
    Abstract: Compositions and processes that preserve and enhance the brightness and improve color of pulp or paper when applied during different stages of the papermaking process are identified. The composition and method maintains and/or enhances brightness, prevent yellowing, and enhances the performance of paper products. Used in combination with optical brighteners and/or chelants the described agents produce a synergistic effect not previously identified in the paper process.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: August 21, 2012
    Assignee: Nalco Company
    Inventors: Prasad Duggirala, Sergey Shevchenko
  • Publication number: 20100224333
    Abstract: The invention provides a composition of matter and a method, which enhance the process of mechanically pulping paper precursors. The composition of matter includes a small quantity of a reducing agent and a source of alkali. When added to the pulped material, e.g., wood chips, before or during mechanical pulping, the composition reduces the energy cost of the operation. In addition, not only does the composition also does not reduce the brightness of pulp, the composition can also enhance the effectiveness of subsequent bleaching processes.
    Type: Application
    Filed: March 9, 2009
    Publication date: September 9, 2010
    Inventors: Prasad Duggirala, Sergey Shevchenko
  • Publication number: 20070131365
    Abstract: A method of enhancing brightness of paper made from mechanical pulps or recycled pulps that comprise: adding an effective amount of one or more chelants and one or more surfactants to a bleaching stage of a papermaking process that involves the addition of hydrosulfite is disclosed.
    Type: Application
    Filed: December 14, 2005
    Publication date: June 14, 2007
    Inventors: Prasad Duggirala, Sergey Shevchenko
  • Publication number: 20070131373
    Abstract: A method of decreasing the rate of photoyellowing in paper containing mechanical pulp comprising: applying an aqueous solution containing an effective amount of one or more salts of thiocyanic acid on the surface of a paper sheet in a papermaking process.
    Type: Application
    Filed: December 14, 2005
    Publication date: June 14, 2007
    Inventors: Sergey Shevchenko, Prasad Duggirala
  • Publication number: 20070062653
    Abstract: Compositions and processes that preserve and enhance the brightness and improve color of pulp or paper when applied during different stages of the papermaking process are identified. The composition and method maintains and/or enhances brightness, prevent yellowing, and enhances the performance of paper products. Used in combination with optical brighteners and/or chelants the described agents produce a synergistic effect not previously identified in the paper process.
    Type: Application
    Filed: March 23, 2006
    Publication date: March 22, 2007
    Inventors: Prasad Duggirala, Sergey Shevchenko
  • Publication number: 20060281191
    Abstract: A method for monitoring the deposition of organic deposits from a liquid or slurry in a papermaking process is disclosed. The method involves measuring the rate of deposition of organic deposits from the liquid or slurry of a papermaking process on to a quartz crystal microbalance having a top side in contact with the liquid or slurry and a second, bottom side isolated from the liquid or slurry. Also disclosed is a method for measuring the effectiveness of inhibitors that decrease the deposition of organic deposits in a papermaking process. The method involves monitoring the deposition of organic deposits of a liquid or slurry from a papermaking process or from a liquid or slurry that simulates a liquid or slurry found in a papermaking process.
    Type: Application
    Filed: June 9, 2005
    Publication date: December 14, 2006
    Inventors: Prasad Duggirala, Sergey Shevchenko
  • Publication number: 20060229393
    Abstract: A Penetrant compound that preserves and enhances the brightness of a ligno-cellulosic material comprising (i) a reductive nucleophilic agent and (ii) a chelant in a paper or tissue machine. This Penetrant compound preserves and enhances the brightness of a ligno-cellulosic material when applied during different stages of the papermaking process. Penetrant compound maintains and/or enhances brightness, prevent yellowing, and enhances the performance of optical brighteners of pulp or a paper sheet produced by methods wherein the penetrant compound is applied in the papermaking process.
    Type: Application
    Filed: April 8, 2005
    Publication date: October 12, 2006
    Inventors: Prasad Duggirala, Sergey Shevchenko
  • Publication number: 20050217813
    Abstract: Mechanical or Chemical pulp is treated with about 0.01 weight % to about 5 weight % of a Mixture. The Mixture is water; diethylenetriaminepentakis(methyl)phosphonic acid or its known salts; polyacrylic acid or its known salts; and optionally one or more inert compounds. This Mixture acts to either maintain the brightness level of the pulp at the target level or to increase the brightness level of the pulp. In addition the Mixture allows for maintaining the pulp at the target level of brightness even when the amounts of other ingredients, such as hydrogen peroxide, hydrosulfite, sodium silicate and magnesium, that are typically added to the pulp, are reduced.
    Type: Application
    Filed: March 31, 2004
    Publication date: October 6, 2005
    Inventors: Sergey Shevchenko, Prasad Duggirala
  • Publication number: 20050194111
    Abstract: A method to enhance brightness in Chemical and Mechanical pulps comprising adding an organic sulfide chelant is described and claimed. A method to enhance delignification in a Chemical pulp comprising adding an organic sulfide chelant is also described and claimed.
    Type: Application
    Filed: May 3, 2005
    Publication date: September 8, 2005
    Inventors: Prasad Duggirala, Sergey Shevchenko, Kristine Salmen