Patents by Inventor Karolin BOLTE

Karolin BOLTE 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 for purification of 4-hydroxyacetophenone
    Patent number: 10981854
    Abstract: Methods of purifying crude 4-hydroxyacetophenone using one or more solvents as well as products comprising or consisting of crystallized 4-hydroxyacetophenone and one, two or more solvent(s). The products may be obtained or obtainable from the methods for purifying crude 4-hydroxyacetophenone.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: April 20, 2021
    Assignees: SYMRISE AG, SINO-HIGH (CHINA) CO. LTD.
    Inventors: Ravikumar Pillai, Sven Siegel, Ev Suess, Karolin Bolte, Yan Liuxin
  • METHOD FOR PURIFICATION OF 4-HYDROXYACETOPHENONE
    Publication number: 20210002200
    Abstract: Methods of purifying crude 4-hydroxyacetophenone using one or more solvents as well as products comprising or consisting of crystallized 4-hydroxyacetophenone and one, two or more solvent(s). The products may be obtained or obtainable from the methods for purifying crude 4-hydroxyacetophenone.
    Type: Application
    Filed: August 24, 2020
    Publication date: January 7, 2021
    Inventors: Ravikumar Pillai, Sven Siegel, Ev Suess, Karolin Bolte, Yan Liuxin
  • Method for purification of 4-hydroxyacetophenone
    Patent number: 10752571
    Abstract: Methods of purifying crude 4-hydroxyacetophenone using one or more solvents as well as products comprising or consisting of crystallized 4-hydroxyacetophenone and one, two or more solvent(s). The products may be obtained or obtainable from the methods for purifying crude 4-hydroxyacetophenone.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: August 25, 2020
    Assignees: SYMRISE AG, SINO-HIGH (CHINA) CO. LTD.
    Inventors: Ravikumar Pillai, Sven Siegel, Ev Suess, Karolin Bolte, Yan Liuxin
  • METHOD FOR PURIFICATION OF 4-HYDROXYACETOPHENONE
    Publication number: 20200039911
    Abstract: Methods of purifying crude 4-hydroxyacetophenone using one or more solvents as well as products comprising or consisting of crystallized 4-hydroxyacetophenone and one, two or more solvent(s). The products may be obtained or obtainable from the methods for purifying crude 4-hydroxyacetophenone.
    Type: Application
    Filed: April 21, 2017
    Publication date: February 6, 2020
    Applicants: Symrise AG, Sino-High (China) Co. Ltd.
    Inventors: Ravikumar PILLAI, Sven SIEGEL, Ev SUESS, Karolin BOLTE, Yan LIUXIN