Patents by Inventor Bas Ritzen

Bas Ritzen 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).

  • Apparatus and continuous flow process for production of boronic acid derivatives
    Patent number: 10364257
    Abstract: A process for a continuous production of a boronic acid derivative based on a Matteson boronic ester homologation and an apparatus of performing the process are disclosed.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: July 30, 2019
    Assignee: REMPEX PHARMACEUTICALS, INC.
    Inventors: Ulfried Felfer, Clemens Stueckler, Stefan Steinhofer, Andreas Pelz, Marcus Hanacek, Thomas Heinrich Pabst, George Winkler, Peter Poechlauer, Bas Ritzen, Michel Goldbach
  • APPARATUS AND CONTINUOUS FLOW PROCESS FOR PRODUCTION OF BORONIC ACID DERIVATIVES
    Publication number: 20170369512
    Abstract: A process for a continuous production of a boronic acid derivative based on a Matteson boronic ester homologation and an apparatus of performing the process are disclosed.
    Type: Application
    Filed: December 9, 2015
    Publication date: December 28, 2017
    Inventors: Ulfried Felfer, Clemens Stueckler, Stefan Steinhofer, Andreas Pelz, Marcus Hanacek, Thomas Heinrich Pabst, George Winkler, Peter Poechlauer, Bas Ritzen, Michel Goldbach
  • ENZYMATIC CONJUGATION OF BIOACTIVE MOIETIES
    Publication number: 20110045530
    Abstract: The present invention relates to a method for selective conjugation of bioactive moieties to a polymer or polymerisable compound. The method is more specifically related to the selective conjugation of bioactive moieties to a pendant carboxylic acid, ester or thioester group in which the pendant group is part of a polymer or a polymerisable compound, wherein the method comprises contacting the polymer or polymerisable compound with a hydrolytic enzyme to catalyse the conjugation between the bioactive moiety and the pendant carboxylic acid, ester or thioester group. The conjugation of the bioactive moieties may occur prior to, during or after polymerization of the polymerisable compound. The conjugation of the bioactive moieties may also occur after the polymer is given a form.
    Type: Application
    Filed: February 13, 2009
    Publication date: February 24, 2011
    Inventors: Peter Jan Leonard Mario Quaedflieg, Bartholomeus Johannes Margretha Plum, Aylvin Jorge Angelo Athanasius Dias, Bas Ritzen, Claudia Cusan, Catharina Hubertina Maria Schepers
  • ENZYMATIC ESTER HYDROLYSIS
    Publication number: 20100311130
    Abstract: The present invention relates to a method for selectively hydrolysing a pendant ester bond formed by an unsubstituted or substituted hydrocarbon group—optionally comprising one or more heteroatoms—and a pendant carboxylate moiety, which carboxylate moiety is part of a polymer or a polymerisable compound, which polymer or polymerisable compound comprises at least one other hydrolysable group, wherein the method comprises contacting the polymer or polymerisable compound with a hydrolytic enzyme.
    Type: Application
    Filed: June 19, 2008
    Publication date: December 9, 2010
    Applicant: DSM IP ASSETS B.V.
    Inventors: Peter Jan Leonard Mario Quaedflieg, Claudia Cusan, Bas Ritzen, Aylvin Jorge Angelo Athanasius Dias