Patents by Inventor Bright KUSEMA

Bright KUSEMA 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).

  • Method of oxidizing glycolaldehyde using nitric acid
    Patent number: 11753362
    Abstract: The present invention relates to a method of synthesizing at least one organic acid comprising oxidizing glycolaldehyde with nitric acid in the presence of a solvent. Advantageously, it is an industrially applicable process, which prepares organic acid, notably glycolic acid and/or glyoxylic acid in a high yield based on bio-based feedstocks.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: September 12, 2023
    Assignee: RHODIA OPERATIONS
    Inventors: Zhen Yan, Bright Kusema, Sergio Mastroianni, Stéphane Streiff, Philippe Marion
  • METHOD FOR PREPARING GLYCOLIC ACID
    Publication number: 20220306563
    Abstract: Provided is a method for preparing glycolic acid which comprises oxidizing glycolaldehyde with molecular oxygen in the presence of a solvent and a supported catalyst. Said supported catalyst comprises (i) a noble metal selected from the group consisting of Pt, Pd, Ru and Rh, (ii) Bi and (iii) a support. Advantageously, the supported metallic catalyst is more active than the catalysts used in prior art. Furthermore, the catalyst is more stable at oxygen rich conditions.
    Type: Application
    Filed: June 27, 2019
    Publication date: September 29, 2022
    Inventors: Zhen YAN, Bright KUSEMA, Stéphane STREIFF
  • A METHOD OF OXIDIZING GLYCOLALDEHYDE USING NITRIC ACID
    Publication number: 20220213018
    Abstract: The present invention relates to a method of synthesizing at least one organic acid comprising oxidizing glycolaldehyde with nitric acid in the presence of a solvent. Advantageously, it is an industrially applicable process, which prepares organic acid, notably glycolic acid and/or glyoxylic acid in a high yield based on bio-based feedstocks.
    Type: Application
    Filed: June 4, 2019
    Publication date: July 7, 2022
    Inventors: Zhen YAN, Bright KUSEMA, Sergio MASTROIANNI, Stéphane STREIFF, Philippe MARION