Patents by Inventor Alexander Lucia Leonardus Duchateau

Alexander Lucia Leonardus Duchateau 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).

  • Publication number: 20230183285
    Abstract: The present invention is directed to a process for purifying natamycin, to an all-trans polyene amphoteric macrolide, to a composition comprising said polyene amphoteric macrolide and to a process for preparing said polyene amphoteric macrolide.
    Type: Application
    Filed: February 6, 2023
    Publication date: June 15, 2023
    Inventors: Alexander Lucia Leonardus DUCHATEAU, Peter Philip LANKHORST, Willebrordus Bernardus VAN SCHEPPINGEN
  • Publication number: 20230151045
    Abstract: The present invention is directed to a process for purifying natamycin, to an epoxide polyene amphoteric macrolide, to a composition comprising said polyene amphoteric macrolide and to a process for preparing said polyene amphoteric macrolide.
    Type: Application
    Filed: January 19, 2023
    Publication date: May 18, 2023
    Inventors: Alexander Lucia Leonardus DUCHATEAU, Peter Philip LANKHORST, Willebrordus Bernardus VAN SCHEPPINGEN
  • Patent number: 11623939
    Abstract: The present invention is directed to a process for purifying natamycin, to an all-trans polyene amphoteric macrolide, to a composition comprising said polyene amphoteric macrolide and to a process for preparing said polyene amphoteric macrolide.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: April 11, 2023
    Assignee: DSM IP ASSETS B.V.
    Inventors: Alexander Lucia Leonardus Duchateau, Peter Philip Lankhorst, Willebrordus Bernardus Van Scheppingen
  • Patent number: 11591360
    Abstract: The present invention is directed to a process for purifying natamycin, to an epoxide polyene amphoteric macrolide, to a composition comprising said polyene amphoteric macrolide and to a process for preparing said polyene amphoteric macrolide.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: February 28, 2023
    Assignee: DSM IP ASSETS B.V.
    Inventors: Alexander Lucia Leonardus Duchateau, Peter Philip Lankhorst, Willebrordus Bernardus Van Scheppingen
  • Publication number: 20210230207
    Abstract: The present invention is directed to a process for purifying natamycin, to an all-trans polyene amphoteric macrolide, to a composition comprising said polyene amphoteric macrolide and to a process for preparing said polyene amphoteric macrolide.
    Type: Application
    Filed: August 15, 2019
    Publication date: July 29, 2021
    Inventors: Alexander Lucia Leonardus DUCHATEAU, Peter Philip LANKHORST, Willebrordus Bernardus VAN SCHEPPINGEN
  • Publication number: 20210188892
    Abstract: The present invention is directed to a process for purifying natamycin, to an epoxide polyene amphoteric macrolide, to a composition comprising said polyene amphoteric macrolide and to a process for preparing said polyene amphoteric macrolide.
    Type: Application
    Filed: August 15, 2019
    Publication date: June 24, 2021
    Inventors: Alexander Lucia Leonardus DUCHATEAU, Peter Philip LANKHORST, Willebrordus Bernardus VAN SCHEPPINGEN
  • Patent number: 9993515
    Abstract: The present invention relates to a process to produce a composition comprising water-soluble peptides and having a Trp/LNAA ratio of more than 0.15, which comprises hydrolyzing lysozyme, preferably hen eggs lysozyme, to prepare a hydrolysate having a DH of between 5 and 45.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: June 12, 2018
    Assignee: DSM IP ASSETS B.V.
    Inventors: Andre Leonardus De Roos, Luppo Edens, Rudolf Franciscus Van Beckhoven, Alexander Lucia Leonardus Duchateau, Joris Kloek
  • Publication number: 20160082070
    Abstract: The present invention relates to a process to produce a composition comprising water-soluble peptides and having a Trp/LNAA ratio of more than 0.15, which comprises hydrolyzing lysozyme, preferably hen eggs lysozyme, to prepare a hydrolysate having a DH of between 5 and 45.
    Type: Application
    Filed: December 1, 2015
    Publication date: March 24, 2016
    Inventors: Andre Leonardus DE ROOS, Luppo EDENS, Rudolf Franciscus VAN BECKHOVEN, Alexander Lucia Leonardus DUCHATEAU, Joris KLOEK
  • Patent number: 9228219
    Abstract: The present invention relates to a process to produce a composition comprising water-soluble peptides and having a Trp/LNAA ratio of more than 0.15, which comprises hydrolyzing lysozyme, preferably hen eggs lysozyme, to prepare a hydrolysate having a DH of between 5 and 45.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: January 5, 2016
    Assignee: DSM IP ASSETS B.V.
    Inventors: Andre Leonardus De Roos, Luppo Edens, Rudolf Franciscus Van Beckhoven, Alexander Lucia Leonardus Duchateau, Joris Kloek
  • Patent number: 9045402
    Abstract: The present invention relates to a process of preparing tocotrienol quinones. It has been found that this process allows the formation of the R-isomer in a high yield in a very efficient and economically interesting way. Said process is particularly useful when implemented in an industrial process. Furthermore, it has been found that this process allows using isomer mixtures as they result from traditional industrial synthesis.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: June 2, 2015
    Assignee: DSM IP ASSETS B.V.
    Inventors: Gerhard Schiefer, Thomas Netscher, Alexander Lucia Leonardus Duchateau
  • Patent number: 8987480
    Abstract: The present invention relates to a process of separating chiral isomers of chroman compounds, particularly tocopherols and tocotrienols as well as the esters and intermediates thereof. It has been found that this process allows a separation of the desired isomer with a higher yield and enables the use of the non-desired isomers in a very efficient way. Said process is particularly useful when implemented in an industrial process. Furthermore, it has been found that this process allows using isomer mixtures as they result from traditional industrial synthesis.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: March 24, 2015
    Assignee: DSM IP Assets B.V.
    Inventors: Gerhard Schiefer, Thomas Netscher, Alexander Lucia Leonardus Duchateau
  • Publication number: 20140206905
    Abstract: The present invention relates to a process of preparing tocotrienol quinones. It has been found that this process allows the formation of the R-isomer in a high yield in a very efficient and economically interesting way. Said process is particularly useful when implemented in an industrial process. Furthermore, it has been found that this process allows using isomer mixtures as they result from traditional industrial synthesis.
    Type: Application
    Filed: September 21, 2012
    Publication date: July 24, 2014
    Applicant: SAM IP ASSETS B.V.
    Inventors: Gerhard Schiefer, Thomas Netscher, Alexander Lucia Leonardus Duchateau
  • Publication number: 20140155636
    Abstract: The present invention relates to a process of separating chiral isomers of chroman compounds, particularly tocopherols and tocotrienols as well as the esters and intermediates thereof. It has been found that this process allows a separation of the desired isomer with a higher yield and enables the use of the non-desired isomers in a very efficient way. Said process is particularly useful when implemented in an industrial process. Furthermore, it has been found that this process allows using isomer mixtures as they result from traditional industrial synthesis.
    Type: Application
    Filed: May 8, 2012
    Publication date: June 5, 2014
    Applicant: DSM IP ASSETTS B.V.
    Inventors: Gerhard Schiefer, Thomas Netscher, Alexander Lucia Leonardus Duchateau
  • Publication number: 20130231278
    Abstract: The present invention relates to a process to produce a composition comprising water-soluble peptides and having a Trp/LNAA ratio of more than 0.15, which comprises hydrolyzing lysozyme, preferably hen eggs lysozyme, to prepare a hydrolysate having a DH of between 5 and 45.
    Type: Application
    Filed: October 31, 2012
    Publication date: September 5, 2013
    Applicant: DSM IP Assets B.V.
    Inventors: Andre Leonardus De Roos, Luppo Edens, Rudolf Franciscus Van Beckhoven, Alexander Lucia Leonardus Duchateau, Joris Kloek
  • Publication number: 20110086803
    Abstract: The present invention relates to a process to produce a composition comprising water-soluble peptides and having a Trp/LNAA ratio of more than 0.15, which comprises hydrolyzing lysozyme, preferably hen eggs lysozyme, to prepare a hydrolysate having a DH of between 5 and 45.
    Type: Application
    Filed: October 30, 2007
    Publication date: April 14, 2011
    Inventors: Andre Leonardus De Roos, Luppo Edens, Rudolf Franciscus Van Beckhoven, Alexander Lucia Leonardus Duchateau, Joris Kloek
  • Publication number: 20110011961
    Abstract: The present invention relates to granules comprising a ?-lactam antibiotic, wherein CH2S(72h)<50 ?l of H2S gas per kg of ?-lactam antibiotic, wherein CH2S(72h) is the volume of H2S gas above said granules per kg of said ?-lactam antibiotic, when a sample of between 3.5 and 4.5 g of said granules is kept in a closed container having a volume of 20 ml at a temperature of 22° C. during 72 hours at atmospheric pressure (1 bar). The invention also relates to a process for the preparation of granules comprising a ?-lactam antibiotic, said process comprising feeding said ?-lactam antibiotic to a roller compactor to form compacts, size reducing, e.g. milling the compacts to produce granules, wherein the temperature of the ?-lactam antibiotic that is fed to the roller compactor is sufficiently low that CH2S(72h)<50 ?l of H2S gas per kg of ?-lactam antibiotic, wherein CH2S(72h) is the volume of H2S gas above said granules per kg of said ?-lactam antibiotic, when a sample of between 3.5 and 4.
    Type: Application
    Filed: September 23, 2010
    Publication date: January 20, 2011
    Inventors: Marinus Petrus Wilhelmus Maria RIJKERS, Alexander Lucia Leonardus Duchateau, Johannes Helena Michael Mommers, Jozef Maria Methias Boesten