Patents by Inventor Paul Verwer

Paul Verwer 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).

  • Crystalline particles of glutamic acid N,N-diacetic acid
    Patent number: 9815773
    Abstract: The invention relates to glutamic acid N,N-diacetic acid (GLDA) of the formula GLDA-YmHn, wherein m is less than 0.5, n+m=4, Y is a monovalent cation that is not a proton, in the form of crystals, a process to make these crystals, and their uses, in particular in detergent compositions.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: November 14, 2017
    Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Cornelis Elizabeth Johannus Van Lare, Roy Gérard Doppen, Martin Heus, Elwin Schomaker, Paul Verwer
  • Crystalline particles of glutamic acid N,N-diacetic acid
    Publication number: 20150321995
    Abstract: The invention relates to glutamic acid N,N-diacetic acid (GLDA) of the formula GLDA-YmHn, wherein m is less than 0.5, n+m=4, Y is a monovalent cation that is not a proton, in the form of crystals, a process to make these crystals, and their uses, in particular in detergent compositions.
    Type: Application
    Filed: December 12, 2013
    Publication date: November 12, 2015
    Inventors: Cornelis Elizabeth Johannus Van Lare, Roy Gérard Doppen, Martin Heus, Elwin Schomaker, Paul Verwer
  • Process for separating monochloroacetic acid and dichloroacetic acid via extractive distillation
    Patent number: 9073848
    Abstract: The present invention pertains to a process for separating monochloroacetic acid and dichloroacetic acid from one another via extractive distillation, comprising the steps of (i) contacting a mixture comprising monochloroacetic acid and dichloroacetic acid with an extractive agent which is chemically stable and which has a BF3 affinity of between 65 kJ/mole and 110 kJ/mole, (ii) distilling the mixture to obtain a monochloroacetic acid stream and a stream comprising dichloroacetic acid and the extractive agent, and (iii) regenerating the extractive agent.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: July 7, 2015
    Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Mark Theodorus Gerardus Jongmans, Johannes Josef Pragt, Gerrald Bargeman, Boelo Schuur, Jacobus Theodorus Josef Aaldering, André Banier De Haan, Melle Rinze Nieuwhof, Paul Verwer, Anton Alexandru Kiss, Antoon Jacob Berend Ten Kate, Cornelis Johannes Govardus Van Strien
  • PROCESS FOR SEPARATING MONOCHLOROACETIC ACID AND DICHLOROACETIC ACID VIA EXTRACTIVE DISTILLATION
    Publication number: 20140121411
    Abstract: The present invention pertains to a process for separating monochloroacetic acid and dichloroacetic acid from one another via extractive distillation, comprising the steps of (i) contacting a mixture comprising monochloroacetic acid and dichloroacetic acid with an extractive agent which is chemically stable and which has a BF3 affinity of between 65 kJ/mole and 110 kJ/mole, (ii) distilling the mixture to obtain a monochloroacetic acid stream and a stream comprising dichloroacetic acid and the extractive agent, and (iii) regenerating the extractive agent.
    Type: Application
    Filed: March 13, 2012
    Publication date: May 1, 2014
    Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Mark Theodorus Gerardus Jongmans, Johannes Josef Pragt, Gerrald Bargeman, Boelo Schuur, Jacobus Theodorus Josef Aaldering, André Banier De Haan, Melle Rinze Nieuwhof, Paul Verwer, Anton Alexandru Kiss, Antoon Jacob Berend Ten Kate, Cornelis Johannes Govardus Van Strien
  • Electrical connector with improved locking means
    Patent number: 6981890
    Abstract: A locking connector is provided for electrically interconnecting first and second electrical conductors. The connector includes an enclosure that accommodates an electrical contact component electrically interengaged with the first conductor. At least two spring locking clips are mounted in the enclosure and serially arranged to face away from the inlet such that the clips are sequentially and resiliently opened by introducing the second conductor into the enclosure through the inlet. The clips are spring biased to grip the second conductor at a plurality of locations and hold the second conductor in electrical interengagement with the contact component. This enables the second conductor to resist disengagement from the contact component.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: January 3, 2006
    Inventors: Stephen Cutler, Paul A. Verwer
  • Electrical connector with improved locking means
    Publication number: 20010010981
    Abstract: A locking connector is provided for electrically interconnecting first and second electrical conductors. The connector includes an enclosure that accommodates an electrical contact component electrically interengaged with the first conductor. At least two spring locking clips are mounted in the enclosure and serially arranged to face away from the inlet such that the clips are sequentially and resiliently opened by introducing the second conductor into the enclosure through the inlet. The clips are spring biased to grip the second conductor at a plurality of locations and hold the second conductor in electrical interengagement with the contact component. This enables the second conductor to resist disengagement from the contact component.
    Type: Application
    Filed: April 5, 2001
    Publication date: August 2, 2001
    Inventors: Stephen Cutler, Paul A. Verwer
  • Electrical connector with improved locking means
    Patent number: 6257919
    Abstract: A locking connector is provided for electrically interconnecting first and second electrical conductors. The connector includes an enclosure that accommodates an electrical contact component electrically interengaged with the first conductor. At least two spring locking clips are mounted in the enclosure and serially arranged to face away from the inlet such that the clips are sequentially and resiliently opened by introducing the second conductor into the enclosure through the inlet. The clips are spring biased to grip the second conductor at a plurality of locations and hold the second conductor in electrical interengagement with the contact component. This enables the second conductor to resist disengagement from the contact component.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: July 10, 2001
    Inventors: Stephen Cutler, Paul A. Verwer