Patents by Inventor Christian Wolfgang Hemp

Christian Wolfgang Hemp 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 the manufacture of 4-aminobenzoamidine dihydrochloride
    Patent number: 10280133
    Abstract: The present invention relates to a process for the preparation of 4-aminobenzoamidine (4-AMBA) salts of general formula (I) preferably the salts thereof with hydrochloric or hydrobromic acid, particularly preferred the dichloride salt.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: May 7, 2019
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Weitong Dong, Christian Wolfgang Hemp, Xiangle Jin, Jun Lu, Ulrich Scholz, Shengmin Su, Wei Xu, Jinsong Yang
  • NOVEL PROCESS FOR THE MANUFACTURE OF 4-AMINOBENZOAMIDINE DIHYDROCHLORIDE
    Publication number: 20180319735
    Abstract: The present invention relates to a process for the preparation of 4-aminobenzoamidine (4-AMBA) salts of general formula (I) preferably the salts thereof with hydrochloric or hydrobromic acid, particularly preferred the dichloride salt.
    Type: Application
    Filed: July 6, 2018
    Publication date: November 8, 2018
    Inventors: Weitong DONG, Christian Wolfgang Hemp, Xiangle Jin, Jun Lu, Ulrich Scholz, Shengmin Su, Wei Xu, Jinsong Yang
  • Process for the manufacture of 4-aminobenzoamidine dihydrochloride
    Patent number: 10040750
    Abstract: The present invention relates to a process for the preparation of 4-aminobenzoamidine (4-AMBA) salts of general formula (I) preferably the salts thereof with hydrochloric or hydrobromic acid, particularly preferred the dichloride salt.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: August 7, 2018
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Weitong Dong, Christian Wolfgang Hemp, Xiangle Jin, Jun Lu, Ulrich Scholz, Shengmin Su, Wei Xu, Jinsong Yang
  • NOVEL PROCESS FOR THE MANUFACTURE OF 4-AMINOBENZOAMIDINE DIHYDROCHLORIDE
    Publication number: 20160297744
    Abstract: The present invention relates to a process for the preparation of 4-aminobenzoamidine (4-AMBA) salts of general formula (I) preferably the salts thereof with hydrochloric or hydrobromic acid, particularly preferred the dichloride salt.
    Type: Application
    Filed: June 23, 2016
    Publication date: October 13, 2016
    Inventors: Weitong DONG, Christian Wolfgang Hemp, Xiangle Jin, Jun Lu, Ulrich Scholz, Shengmin Su, Wei Xu, Jinsong Yang
  • Process for the manufacture of 4-aminobenzoamidine dihydrochloride
    Patent number: 9399616
    Abstract: The present invention relates to a process for the preparation of 4-aminobenzoamidine (4-AMBA) salts of general formula (I) preferably the salts thereof with hydrochloric or hydrobromic acid, particularly preferred the dichloride salt.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: July 26, 2016
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Weitong Dong, Christian Wolfgang Hemp, Xiangle Jin, Jun Lu, Ulrich Scholz, Shengmin Su, Wei Xu, Jinsong Yang
  • SYNTHESIS OF 2,4-DICHLORO-5-TRIFLUOROMETHYL-PYRIMIDINE
    Publication number: 20140135497
    Abstract: This invention relates to a novel method for the synthesis of 2,4-dichloro-5-trifluoromethyl-pyrimidine useful as intermediate in the manufacture of pharmaceutically active ingredients.
    Type: Application
    Filed: November 5, 2013
    Publication date: May 15, 2014
    Applicant: Boehringer Ingelheim International GmbH
    Inventors: Li Liu, Deniz Akalay, Weitong Dong, Jianqing Feng, Christian Wolfgang Hemp, Jun Lu, Le Xie, Jinsong Yang
  • NOVEL PROCESS FOR THE MANUFACTURE OF 4-AMINOBENZOAMIDINE DIHYDROCHLORIDE
    Publication number: 20140114089
    Abstract: The present invention relates to a process for the preparation of 4-aminobenzoamidine (4-AMBA) salts of general formula (I) preferably the salts thereof with hydrochloric or hydrobromic acid, particularly preferred the dichloride salt.
    Type: Application
    Filed: October 16, 2013
    Publication date: April 24, 2014
    Applicant: Boehringer Ingelheim International GmbH
    Inventors: Weitong DONG, Christian Wolfgang Hemp, Xiangle Jin, Jun Lu, Ulrich Scholz, Shengmin Su, Wei Xu, Jinsong Yang