Patents by Inventor Daan Witters

Daan Witters 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: 20200290009
    Abstract: A miniaturized, automated method for controlled printing of large arrays of nano- to femtoliter droplets by actively transporting mother droplets over hydrophilic-in-hydrophobic (“HIH”) micropatches. The technology uses single or double-plate devices where mother droplets can be actuated and HIH micropatches on one or both plates of the device where the droplets are printed. Due to the selective wettability of the hydrophilic micropatches in a hydrophobic matrix, large nano- to femtoliter droplet arrays are created when mother droplets are transported over the arrays. The parent droplets are moved by various droplet actuation principles. Also, a method using two plates placed one top another while being separated by a spacer. One plate is dedicated to confirming and guiding parent droplets by using hydrophilic patches in a hydrophobic matrix, while the other plate contains HIH arrays for printing of the droplets.
    Type: Application
    Filed: May 28, 2020
    Publication date: September 17, 2020
    Inventors: Jeroen Lammertyn, Daan Witters
  • Patent number: 10695737
    Abstract: A novel miniaturized and highly automated method for the controlled printing of large arrays of nano- to femtoliter droplets is presented by actively transporting mother droplets over hydrophilic-in-hydrophobic micropatches. The proposed technology consists of single plate or double-plate devices where mother droplets can be actuated and hydrophilic-in-hydrophobic micropatches on one or both plates of the device where nano- to femtoliter droplets are printed. Due to the selective wettability of the more wettable hydrophilic micropatches in a hydrophobic matrix, large nano- to femtoliter droplet arrays are created when mother droplets are transported over these arrays. The parent droplets can be moved by different droplet actuation principles, for example, by using the principle of electrowetting-on-dielectric droplet actuation. We propose another method that uses two plates that are placed on top of each other while being separated by a spacer.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: June 30, 2020
    Assignee: Katholieke Universiteit Leuven, K.U.Leuven R&D
    Inventors: Jeroen Lammertyn, Daan Witters
  • Publication number: 20190100747
    Abstract: A sample preparation module accepts a sample including a target analyte. The sample preparation module processes the sample through several reaction chambers and a solid phase column. Different reagents are present in the reaction chambers. The eluted analyte is then transferred to the amplification module, where it is further processed and amplified for optical analysis.
    Type: Application
    Filed: September 13, 2018
    Publication date: April 4, 2019
    Inventors: Rustem ISMAGILOV, Erik Jue, Daan Witters
  • Publication number: 20180015437
    Abstract: A novel miniaturized and highly automated method for the controlled printing of large arrays of nano- to femtoliter droplets is presented by actively transporting mother droplets over hydrophilic-in-hydrophobic micropatches. The proposed technology consists of single plate or double-plate devices where mother droplets can be actuated and hydrophilic-in-hydrophobic micropatches on one or both plates of the device where nano- to femtoliter droplets are printed. Due to the selective wettability of the more wettable hydrophilic micropatches in a hydrophobic matrix, large nano- to femtoliter droplet arrays are created when mother droplets are transported over these arrays. The parent droplets can be moved by different droplet actuation principles, for example, by using the principle of electrowetting-on-dielectric droplet actuation. We propose another method that uses two plates that are placed on top of each other while being separated by a spacer.
    Type: Application
    Filed: July 7, 2017
    Publication date: January 18, 2018
    Applicant: Katholieke Universiteit Leuven, K.U.Leuven R&D
    Inventors: Jeroen Lammertyn, Daan Witters
  • Publication number: 20170225161
    Abstract: Provided herein are devices and methods for generating positive and negative pressures. The devices and methods are suited for the generation of pressures; in particular, the pressures generated can be useful for controlling the flow of fluids, such as in fluidic device.
    Type: Application
    Filed: August 14, 2015
    Publication date: August 10, 2017
    Inventors: Stefano BEGOLO, Dmitriy V. ZHUKOV, Daan WITTERS, Erik B. JUE, Rustem F. ISMAGILOV
  • Publication number: 20140378339
    Abstract: A novel miniaturized and highly automated method for the controlled printing of large arrays of nano- to femtoliter droplets is presented by actively transporting mother droplets over hydrophilic-in-hydrophobic micropatches. The proposed technology consists of single plate or double-plate devices where mother droplets can be actuated and hydrophilic-in-hydrophobic micropatches on one or both plates of the device where nano- to femtoliter droplets are printed. Due to the selective wettability of the more wettable hydrophilic micropatches in a hydrophobic matrix, large nano- to femtoliter droplet arrays are created when mother droplets are transported over these arrays. The parent droplets can be moved by different droplet actuation principles, for example, by using the principle of electrowetting-on-dielectric droplet actuation. We propose another method that uses two plates that are placed on top of each other while being separated by a spacer.
    Type: Application
    Filed: January 24, 2013
    Publication date: December 25, 2014
    Applicant: KATHOLIEKE UNIVERSITEIT EUVEN
    Inventors: Jeroen Lammertyn, Daan Witters