Patents by Inventor Abneesh Srivastava

Abneesh Srivastava 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).

  • Gas purifier
    Patent number: 10245554
    Abstract: The invention relates to a gas purifier that removes moisture and oxygen from inert gases and reducing gases, for example, at sub-atmospheric pressures. The purifier can remove part per million levels of moisture in a gas stream to less than 100 parts per trillion by volume, and has a low pressure drop and a sharp breakthrough curve.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: April 2, 2019
    Assignee: Entegris, Inc.
    Inventors: Abneesh Srivastava, Thomas Richard Gaffney, Joshua T. Cook, Peter K. Shorgen, Daimhin Paul Murphy, Stenio da Costa Pereira
  • Gas Purifier
    Publication number: 20170333841
    Abstract: The invention relates to a gas purifier that removes moisture and oxygen from inert gases and reducing gases, for example, at sub-atmospheric pressures. The purifier can remove part per million levels of moisture in a gas stream to less than 100 parts per trillion by volume, and has a low pressure drop and a sharp breakthrough curve.
    Type: Application
    Filed: June 5, 2017
    Publication date: November 23, 2017
    Inventors: Abneesh Srivastava, Thomas Richard Gaffney, Joshua T. Cook, Peter K. Shorgen, Daimhin Paul Murphy, Stenio da Costa Pereira
  • Gas purifier
    Patent number: 9694319
    Abstract: The invention relates to a gas purifier that removes moisture and oxygen from inert gases and reducing gases, for example, at sub-atmospheric pressures. The purifier can remove part per million levels of moisture in a gas stream to less than 100 parts per trillion by volume, and has a low pressure drop and a sharp breakthrough curve.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: July 4, 2017
    Assignee: Entegris, Inc.
    Inventors: Abneesh Srivastava, Thomas Richard Gaffney, Joshua T. Cook, Peter K. Shogren, Daimhin Paul Murphy, Stenio da Costa Pereira
  • APPARATUS FOR PREVENTING MICROPARTICLE AND DUST MIGRATION IN LAYERED BED PURIFICATION DEVICES
    Publication number: 20150283495
    Abstract: The invention relates to an expandable media-retaining ring comprising an expandable ring and a gas permeable media-retaining membrane. The invention further relates to a gas purifier device comprising two or more beds of purification media and an expandable media-retaining ring. The expandable media-retaining ring is secured by radial force in the device, and prevents migration of purification media into adjacent beds, thereby improving the performance of the purifier device, and also enabling the device to be used in any orientation.
    Type: Application
    Filed: August 28, 2013
    Publication date: October 8, 2015
    Applicant: Entegris, Inc.
    Inventors: Peter K. Shogren, Daimhin P. Murphy, Abneesh Srivastava, Stenio da Costa Pereira
  • Gas Purifier
    Publication number: 20150056113
    Abstract: The invention relates to a gas purifier that removes moisture and oxygen from inert gases and reducing gases, for example, at sub-atmospheric pressures. The purifier can remove part per million levels of moisture in a gas stream to less than 100 parts per trillion by volume, and has a low pressure drop and a sharp breakthrough curve.
    Type: Application
    Filed: February 8, 2013
    Publication date: February 26, 2015
    Applicant: Entegris, Inc.
    Inventors: Abneesh Srivastava, Thomas Richard Gaffney, Joshua T. Cook, Peter K. Shogren, Daimhin Paul Murphy, Stenio da Costa Pereira
  • Safe biodegradable fluorescent particles
    Patent number: 7781224
    Abstract: A human-safe fluorescence particle that can be used for fluorescence detection instruments or act as a safe simulant for mimicking the fluorescence properties of microorganisms. The particle comprises a non-biological carrier and natural fluorophores encapsulated in the non-biological carrier. By doping biodegradable-polymer drug delivery microspheres with natural or synthetic fluorophores, the desired fluorescence can be attained or biological organisms can be simulated without the associated risks and logistical difficulties of live microorganisms.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: August 24, 2010
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Sue I. Martin, David P. Fergenson, Abneesh Srivastava, Michael J. Bogan, Vincent J. Riot, Matthias Frank
  • Safe biodegradable fluorescent particles
    Publication number: 20090221087
    Abstract: A human-safe fluorescence particle that can be used for fluorescence detection instruments or act as a safe simulant for mimicking the fluorescence properties of microorganisms. The particle comprises a non-biological carrier and natural fluorophores encapsulated in the non-biological carrier. By doping biodegradable-polymer drug delivery microspheres with natural or synthetic fluorophores, the desired fluorescence can be attained or biological organisms can be simulated without the associated risks and logistical difficulties of live microorganisms.
    Type: Application
    Filed: August 9, 2006
    Publication date: September 3, 2009
    Inventors: Sue I. Martin, David P. Fergenson, Abneesh Srivastava, Michael J. Bogan, Vincent J. Riot, Matthias Frank