Patents by Inventor Ali Ehsani

Ali Ehsani 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).

  • Supercritical Fluid Cleaning for Components in Optical or Electron Beam Systems
    Publication number: 20230191461
    Abstract: To clean components in semiconductor manufacturing equipment, such as an optical system or an electron beam system, a component is heated in a chamber. A supercritical fluid formulation is applied to the component in the chamber, which removes molecular and/or particulate contaminants. The supercritical fluid formulation can include one or more of carbon dioxide, water, HCF, alkane, alkene, nitrous oxide, methanol, ethanol, or acetone.
    Type: Application
    Filed: December 9, 2022
    Publication date: June 22, 2023
    Inventors: Jiulong Sun, Eric Jiang, Ali Ehsani, Garry Rose, Boyd Taylor
  • Vapor as a protectant and lifetime extender in optical systems
    Patent number: 11624904
    Abstract: An enclosure surrounding the optical component can be connected with a vapor source. The vapor source can provide a vapor to the enclosure with a vapor level from 500 ppm to 15000 ppm. The concentration of vapor in the enclosure can increase the lifespan of the optical component in the enclosure.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: April 11, 2023
    Assignee: KLA Corporation
    Inventors: David Jalil Zare, Eduardo Soto, I-Fan Wu, Joseph Walsh, Kent McKernan, Joseph Armstrong, Christopher Davis, Garry Rose, Damon Kvamme, Bernd Burfeindt, Ali Ehsani
  • VAPOR AS A PROTECTANT AND LIFETIME EXTENDER IN OPTICAL SYSTEMS
    Publication number: 20210041689
    Abstract: An enclosure surrounding the optical component can be connected with a vapor source. The vapor source can provide a vapor to the enclosure with a vapor level from 500 ppm to 15000 ppm. The concentration of vapor in the enclosure can increase the lifespan of the optical component in the enclosure.
    Type: Application
    Filed: August 6, 2019
    Publication date: February 11, 2021
    Inventors: David Jalil Zare, Eduardo Soto, I-Fan Wu, Joseph Walsh, Kent McKernan, Joseph Armstrong, Christopher Davis, Garry Rose, Damon Kvamme, Bernd Burfeindt, Ali Ehsani
  • Multi-targeting short interfering RNAs
    Patent number: 9953131
    Abstract: The present invention relates to novel short interfering RNA (siRNA) molecules that are multi-targeted. More specifically, the present invention relates to siRNA molecules that target two or more sequences. In one embodiment, multi-targeting siRNA molecules are designed to incorporate features of siRNA molecules and features of micro-RNA (miRNA) molecules. In another embodiment, multi-targeting siRNA molecules are designed so that each strand is directed to separate targets.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: April 24, 2018
    Assignee: City of Hope
    Inventors: John J. Rossi, Ola Snove, Ali Ehsani, Pal Saetrom, Britta Vallazza, Jane Zhang, Lars Aagaard
  • MULTI-TARGETING SHORT INTERFERING RNAs
    Publication number: 20170004254
    Abstract: The present invention relates to novel short interfering RNA (siRNA) molecules that are multi-targeted. More specifically, the present invention relates to siRNA molecules that target two or more sequences. In one embodiment, multi-targeting siRNA molecules are designed to incorporate features of siRNA molecules and features of micro-RNA (miRNA) molecules. In another embodiment, multi-targeting siRNA molecules are designed so that each strand is directed to separate targets.
    Type: Application
    Filed: September 22, 2016
    Publication date: January 5, 2017
    Applicant: CITY OF HOPE
    Inventors: John J. ROSSI, Ola Snove, Ali Ehsani, Pal Saetrom, Britta Vallazza, Jane Zhang, Lars Aagaard
  • Multi-targeting short interfering RNAs
    Patent number: 9487785
    Abstract: The present invention relates to novel short interfering RNA (siRNA) molecules that are multi-targeted. More specifically, the present invention relates to siRNA molecules that target two or more sequences. In one embodiment, multi-targeting siRNA molecules are designed to incorporate features of siRNA molecules and features of micro-RNA (miRNA) molecules. In another embodiment, multi-targeting siRNA molecules are designed so that each strand is directed to separate targets.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: November 8, 2016
    Assignee: CITY OF HOPE
    Inventors: John J. Rossi, Ola Snove, Jr., Ali Ehsani, Pal Saetrom, Jr., Britta Vallazza, Jane Zhang, Lars Aagaard
  • MULTI-TARGETING SHORT INTERFERING RNAs
    Publication number: 20150105450
    Abstract: The present invention relates to novel short interfering RNA (siRNA) molecules that are multi-targeted. More specifically, the present invention relates to siRNA molecules that target two or more sequences. In one embodiment, multi-targeting siRNA molecules are designed to incorporate features of siRNA molecules and features of micro-RNA (miRNA) molecules. In another embodiment, multi-targeting siRNA molecules are designed so that each strand is directed to separate targets.
    Type: Application
    Filed: December 22, 2014
    Publication date: April 16, 2015
    Applicant: CITY OF HOPE
    Inventors: John J. ROSSI, Ola SNOVE, JR., Ali EHSANI, Pal SAETROM, JR., Britta HOEHN, Jane ZHANG, Lars AAGAARD
  • Multi-targeting short interfering RNAs
    Patent number: 8946401
    Abstract: The present invention relates to novel short interfering RNA (siRNA) molecules that are multi-targeted. More specifically, the present invention relates to siRNA molecules that target two or more sequences. In one embodiment, multi-targeting siRNA molecules are designed to incorporate features of siRNA molecules and features of micro-RNA (miRNA) molecules. In another embodiment, multi-targeting siRNA molecules are designed so that each strand is directed to separate targets.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: February 3, 2015
    Assignee: City of Hope
    Inventors: John J. Rossi, Ola Snove, Jr., Ali Ehsani, Pal Saetrom, Britta Hoehn, Jane Zhang, Lars Aagaard
  • MULTI-TARGETING SHORT INTERFERING RNAs
    Publication number: 20120046343
    Abstract: The present invention relates to novel short interfering RNA (siRNA) molecules that are multi-targeted. More specifically, the present invention relates to siRNA molecules that target two or more sequences. In one embodiment, multi-targeting siRNA molecules are designed to incorporate features of siRNA molecules and features of micro-RNA (miRNA) molecules. In another embodiment, multi-targeting siRNA molecules are designed so that each strand is directed to separate targets.
    Type: Application
    Filed: November 2, 2011
    Publication date: February 23, 2012
    Applicant: CITY OF HOPE
    Inventors: John J. ROSSI, Ola SNOVE, JR., Ali EHSANI, Pal SAETROM, Britta HOEHN, Jane ZHANG, Lars AAGAARD
  • Multi-targeting short interfering RNAs
    Patent number: 8071752
    Abstract: The present invention relates to novel short interfering RNA (siRNA) molecules that are multi-targeted. More specifically, the present invention relates to siRNA molecules that target two or more sequences. In one embodiment, multi-targeting siRNA molecules are designed to incorporate features of siRNA molecules and features of micro-RNA (miRNA) molecules. In another embodiment, multi-targeting siRNA molecules are designed so that each strand is directed to separate targets.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: December 6, 2011
    Assignee: City of Hope
    Inventors: John J. Rossi, Ola Snove, Jr., Ali Ehsani, Pal Saetrom, Jr., Britta Hoehn, Jane Zhang, Lars Aagaard
  • MULTI-TARGETING SHORT INTERFERING RNAs
    Publication number: 20080242632
    Abstract: The present invention relates to novel short interfering RNA (siRNA) molecules that are multi-targeted. More specifically, the present invention relates to siRNA molecules that target two or more sequences. In one embodiment, multi-targeting siRNA molecules are designed to incorporate features of siRNA molecules and features of micro-RNA (miRNA) molecules. In another embodiment, multi-targeting siRNA molecules are designed so that each strand is directed to separate targets.
    Type: Application
    Filed: January 29, 2008
    Publication date: October 2, 2008
    Applicant: CITY OF HOPE
    Inventors: John J. ROSSI, Ola SNOVE, Ali EHSANI, Pal SAETROM, Britta HOEHN
  • Method and system for registering fiducials employing backlighting techniques
    Publication number: 20020109843
    Abstract: A method and system to determine an alignment of a workpiece, with respect to a tool, by backlighting the workpiece. The workpiece includes fiducials, and the backlighting results in electromagnetic radiation passing through the fiducial. The electromagnetic energy emerging from the fiducial defines an emergent flux. A circumference of the emergent flux is ascertained, and the alignment is determined as a function of the circumference.
    Type: Application
    Filed: February 13, 2001
    Publication date: August 15, 2002
    Applicant: Applied Materials, Inc.
    Inventors: Ali Ehsani, Patrick McCarthy, David R. Hill