Patents by Inventor Kamal KATARIA

Kamal KATARIA 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).

  • Process for preparation of 2,6-dichlorobenzonitrile
    Patent number: 11708322
    Abstract: Disclosed herein a process preparation of 2,6-dichlorobenzonitrile. A process of making high yield, high purity 2,6-dichlorobenzonitrile including the selective de-nitrochlorination of 2-chloro-6-nitrobenzonitrile by treatment of the 2-chloro-6-nitrobenzonitrile with chlorine gas.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: July 25, 2023
    Assignee: ARYSTA LIFESCIENCE INC.
    Inventors: Kamal Kataria, Vic Prasad, Christopher Lynn Larson, Cameron Seath Gibb, Kirit Desai, Ashwani Gupta, Girish Sisode
  • Process for preparation of O,O dimethyl phosphoramidothioate and N-(methoxymethylsulfanylphosphoryl) acetamide
    Patent number: 11198700
    Abstract: Preparation of O,O-dimethyl phosphoramidothioate and O,O-dimethyl phosphoroamidothioate. A process of making O,O-dimethyl phosphoroamidothioate is described including reacting sulfur with PCl3 to form PSCl3, reacting the PSCl3 formed with methanol to form O-methyl phosphorodichloridothioate, and reacting the O-methyl phosphorodichloridothioate formed with methyl lye to form O,O-dimethyl phosphorochloridothioate in solution in CH2Cl2, and reacting the O,O-dimethyl phosphorochloridothioate formed with sodium hydroxide and ammonium hydroxide to form O,O-dimethyl phosphoroamidothioate in solution in CH2Cl2. Reacting the O,O-dimethyl phosphoroamidothioate formed with catalytic dimethyl sulfate to form methamidophos and reacting the methamidophos formed with acetic anhydride to form N-(methoxy-methylsulfanylphosphoryl) acetamide is also described. Throughout the process, the O,O-dimethyl phosphorochloridothioate and the O,O-dimethyl phosphoroamidothioate formed are maintained in solution in CH2Cl2 at all times.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: December 14, 2021
    Assignee: ARYSTA LIFESCIENCE INC
    Inventors: Vic Prasad, David Huang, Kamal Kataria, Christopher Lynn Larson, Cameron Seath Gibb, Stephen Cornes
  • Process for Preparation of Thiocyclam Base and Salt
    Publication number: 20210321613
    Abstract: A process for preparation of thiocyclam base and salt.
    Type: Application
    Filed: June 12, 2019
    Publication date: October 21, 2021
    Inventors: Kamal Kataria, Vic Prasad, Cameron Gibb, Christopher Lynn Larson
  • PROCESS FOR PREPARATION OF O,O DIMETHYL PHOSPHORAMIDOTHIOATE AND N-(METHOXYMETHYLSULFANYLPHOSPHORYL) ACETAMIDE
    Publication number: 20200255459
    Abstract: Preparation of O,O-dimethyl phosphoramidothioate and O,O-dimethyl phosphoroamidothioate. A process of making O,O-dimethyl phosphoroamidothioate is described including reacting sulfur with PCl3 to form PSCl3, reacting the PSCl3 formed with methanol to form O-methyl phosphorodichloridothioate, and reacting the O-methyl phosphorodichloridothioate formed with methyl lye to form O,O-dimethyl phosphorochloridothioate in solution in CH2Cl2, and reacting the O,O-dimethyl phosphorochloridothioate formed with sodium hydroxide and ammonium hydroxide to form O,O-dimethyl phosphoroamidothioate in solution in CH2Cl2. Reacting the O,O-dimethyl phosphoroamidothioate formed with catalytic dimethyl sulfate to form methamidophos and reacting the methamidophos formed with acetic anhydride to form N-(methoxy-methylsulfanylphosphoryl) acetamide is also described. Throughout the process, the O,O-dimethyl phosphorochloridothioate and the O,O-dimethyl phosphoroamidothioate formed are maintained in solution in CH2Cl2 at all times.
    Type: Application
    Filed: April 28, 2020
    Publication date: August 13, 2020
    Inventors: Vic PRASAD, David HUANG, Kamal KATARIA, Christopher Lynn LARSON, Cameron Seath GIBB, Stephen CORNES
  • Process for preparation of O,O-dimethyl phosphoramidothioate and N-(methoxy-methylsulfanylphosphoryl) acetamide
    Patent number: 10669295
    Abstract: Preparation of O,O-dimethyl phosphoramidothioate and O,O-dimethyl phosphoroamidothioate. A process of making O,O-dimethyl phosphoroamidothioate is described including reacting sulfur with PCl3 to form PSCl3, reacting the PSCl3 formed with methanol to form O-methyl phosphorodichloridothioate, and reacting the O-methyl phosphorodichloridothioate formed with methyl lye to form O,O-dimethyl phosphorochloridothioate in solution in CH2Cl2, and reacting the O,O-dimethyl phosphorochloridothioate formed with sodium hydroxide and ammonium hydroxide to form O,O-dimethyl phosphoroamidothioate in solution in CH2Cl2. Reacting the O,O-dimethyl phosphoroamidothioate formed with catalytic dimethyl sulfate to form methamidophos, and reacting the methamidophos formed with acetic anhydride to form N-(methoxy-methylsulfanylphosphoryl) acetamide is also described. Throughout the process, the O,O-dimethyl phosphorochloridothioate and the O,O-dimethyl phosphoroamidothioate formed are maintained in solution in CH2Cl2 at all times.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: June 2, 2020
    Assignee: ARYSTA LIFESCIENCE INC.
    Inventors: Vic Prasad, David Huang, Kamal Kataria, Christopher Lynn Larson, Cameron Seath Gibb, Stephen Cornes
  • PROCESS FOR PREPARATION OF 2,6-DICHLOROBENZONITRILE
    Publication number: 20200157043
    Abstract: Disclosed herein a process preparation of 2,6-dichlorobenzonitrile. A process of making high yield, high purity 2,6-dichlorobenzonitrile including the selective de-nitrochlorination of 2-chloro-6-nitrohenzonitrile by treatment of the 2-chloro-6-nitrobenzonitrile with chlorine gas.
    Type: Application
    Filed: November 15, 2019
    Publication date: May 21, 2020
    Applicant: Arysta LifeScience Inc.
    Inventors: Kamal KATARIA, Vic PRASAD, Christopher Lynn LARSON, Cameron Seath GIBB, Kirit DESAI, Ashwani GUPTA, Girish SISODE
  • PROCESS FOR PREPARATION OF O, O-DIMEHYL PHOSPHORAMIDOTHIOATE AND N-(METHOXY-METHYLSULFANYLPHOSPHORYL) ACETAMIDE
    Publication number: 20200024293
    Abstract: Preparation of O,O-dimethyl phosphoramidothioate and O,O-dimethyl phosphoroamidothioate. A process of making O,O-dimethyl phosphoroamidothioate is described including reacting sulfur with PCl3 to form PSCl3, reacting the PSCl3 formed with methanol to form O-methyl phosphorodichloridothioate, and reacting the O-methyl phosphorodichloridothioate formed with methyl lye to form O,O-dimethyl phosphorochloridothioate in solution in CH2Cl2, and reacting the O,O-dimethyl phosphorochloridothioate formed with sodium hydroxide and ammonium hydroxide to form O,O-dimethyl phosphoroamidothioate in solution in CH2Cl2. Reacting the O,O-dimethyl phosphoroamidothioate formed with catalytic dimethyl sulfate to form methamidophos, and reacting the methamidophos formed with acetic anhydride to form N-(methoxy-methylsulfanylphosphoryl) acetamide is also described. Throughout the process, the O,O-dimethyl phosphorochloridothioate and the O,O-dimethyl phosphoroamidothioate formed are maintained in solution in CH2Cl2 at all times.
    Type: Application
    Filed: July 19, 2018
    Publication date: January 23, 2020
    Applicant: Arysta LifeScience Inc.
    Inventors: Vic PRASAD, David HUANG, Kamal KATARIA, Christopher Lynn LARSON, Cameron Seath GIBB, Stephen CORNES