Patents by Inventor Subhasis De

Subhasis De 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).

  • COMPOSITIONS AND METHODS FOR SCAVENGING SULFUR-CONTAINING COMPOUNDS
    Publication number: 20240110091
    Abstract: The present disclosure provides compositions and methods for reducing sulfur-containing compounds in a hydrocarbon fluid. The compositions include an alpha amino ether and a synergistic compound. Additionally, the compositions may include a third component. The third component may be, for example, a heteroatom-containing component or a solvent.
    Type: Application
    Filed: September 18, 2023
    Publication date: April 4, 2024
    Applicant: ChampionX USA Inc.
    Inventors: Jordan Kenneth Charles O'GRADY, Nolan MILLER, Boyd A. LAURENT, Subhasis DE, Julian M. GALLARDO, III
  • Thiol-formyl hemiacetal corrosion inhibitors
    Patent number: 11339320
    Abstract: The present invention generally relates to compositions and methods for inhibiting corrosion at a surface in the production, transportation, storage, and separation of crude oil and natural gas.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: May 24, 2022
    Assignee: ChampionX USA Inc.
    Inventors: Boyd Anthony Laurent, Prakasa Rao Anantaneni, Ryan Matthew Harrington, Subhasis De
  • Preparation of new stable hydrogen sulfide scavengers useful in both water as well as oil medium applications
    Patent number: 10669228
    Abstract: The disclosure provides compositions and methods that are useful in removing, lowering, or otherwise controlling hydrogen sulfide and mercaptans. The compositions and methods can be used in any industry where hydrogen sulfide poses problems, such as when dealing with crude oil based, natural gas based, and/or coal based products. In some embodiments, the compositions include one or more alkoxylated amino formaldehyde adducts.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: June 2, 2020
    Assignee: ECOLAB USA INC.
    Inventors: Prakasa Rao Anantaneni, Ryan Matthew Harrington, David Tarverdi, Lawrence J. Karas, Ravindranath Mukkamala, Subhasis De
  • PREPARATION OF NEW STABLE HYDROGEN SULFIDE SCAVENGERS USEFUL IN BOTH WATER AS WELL AS OIL MEDIUM APPLICATIONS
    Publication number: 20200031759
    Abstract: The disclosure provides compositions and methods that are useful in removing, lowering, or otherwise controlling hydrogen sulfide and mercaptans. The compositions and methods can be used in any industry where hydrogen sulfide poses problems, such as when dealing with crude oil based, natural gas based, and/or coal based products. In some embodiments, the compositions include one or more alkoxylated amino formaldehyde adducts.
    Type: Application
    Filed: September 4, 2019
    Publication date: January 30, 2020
    Applicant: ECOLAB USA INC.
    Inventors: Prakasa Rao Anantaneni, Ryan Matthew Harrington, David Tarverdi, Lawrence J. Karas, Ravindranath Mukkamala, Subhasis De
  • Preparation of new stable hydrogen sulfide scavengers useful in both water as well as oil medium applications
    Patent number: 10442755
    Abstract: The disclosure provides compositions and methods that are useful in removing, lowering, or otherwise controlling hydrogen sulfide and mercaptans. The compositions and methods can be used in any industry where hydrogen sulfide poses problems, such as when dealing with crude oil based, natural gas based, and/or coal based products. In some embodiments, the compositions include one or more alkoxylated amino formaldehyde adducts.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: October 15, 2019
    Assignee: ECOLAB USA INC.
    Inventors: Prakasa Rao Anantaneni, Ryan Matthew Harrington, David Tarverdi, Lawrence J. Karas, Ravindranath Mukkamala, Subhasis De
  • THIOL-FORMYL HEMIACETAL CORROSION INHIBITORS
    Publication number: 20180346795
    Abstract: The present invention generally relates to compositions and methods for inhibiting corrosion at a surface in the production, transportation, storage, and separation of crude oil and natural gas.
    Type: Application
    Filed: December 1, 2017
    Publication date: December 6, 2018
    Inventors: Boyd Anthony Laurent, Prakasa Rao Anantaneni, Ryan Matthew Harrington, Subhasis De
  • THIOL-FORMYL HEMIACETAL CORROSION INHIBITORS
    Publication number: 20180155609
    Abstract: The present invention generally relates to compositions and methods for inhibiting corrosion at a surface in the production, transportation, storage, and separation of crude oil and natural gas.
    Type: Application
    Filed: December 1, 2017
    Publication date: June 7, 2018
    Inventors: Boyd Anthony Laurent, Prakasa Rao Anantaneni, Ryan Matthew Harrington, Subhasis De