Patents by Inventor Willem Visser

Willem Visser 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).

  • Patent number: 11944102
    Abstract: The invention provides siRNA molecules for use in controlling pest infestation. The siRNA molecules target the mature mRNA of D. noxia cprr1-8 in a region between nucleotides 464 and 774 of SEQ ID NO: 23, or an equivalent region of an ortholog of D. noxia cprr1-8. Ingestion of the siRNA molecule by a pest inhibits the biological activity of the pest. In one embodiment, the siRNA molecule comprises a polynucleotide which has at least 80% sequence identity to the sequence 5? UAAACAAUCGCAAGAAGCUGA 3? (SEQ ID NO: 1) and a polynucleotide which has at least 80% sequence identity to the sequence 5? AGCUUCUUGCGAUUGUUUAAG 3? (SEQ ID NO: 2). Compositions comprising the siRNA molecules, vectors encoding the siRNA molecules, and methods for using the siRNA molecules are also provided.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: April 2, 2024
    Assignee: Stellenbosch University
    Inventors: Anna-Maria Botha-Oberholster, Hendrik Willem Swiegers, Nicolaas Francois Visser Burger
  • Patent number: 11850851
    Abstract: A production process and a related device comprises a formation process comprising: contacting a first liquid material and a second liquid material with each other at a contact point in a gas atmosphere, wherein at the contact point at least one of the first liquid material and the second liquid material is provided as a liquid jet propagating in a direction, to provide at the contact point a third jet of a coalesced third material propagating in a third direction.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: December 26, 2023
    Assignee: IamFluidics Holding B.V.
    Inventors: Claas Willem Visser, Tom Kamperman, Hermanus Bernardus Johannes Karperien, Detlef Lohse
  • Patent number: 11850852
    Abstract: A production process comprises a formation process that includes: contacting a first liquid material and a second liquid material with each other at a contact point in a gas atmosphere, wherein at the contact point at least one of the first liquid material and the second liquid material is provided as a liquid jet propagating in a direction, to provide at the contact point a third jet of a coalesced third material propagating in a third direction. A production process device can perform the formation process.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: December 26, 2023
    Assignee: IamFluidics Holding B.V.
    Inventors: Claas Willem Visser, Tom Kamperman, Hermanus Bernardus Johannes Karperien, Detlef Lohse
  • Publication number: 20230278278
    Abstract: A method of printing a cellular solid by direct bubble writing comprises introducing an ink formulation comprising a polymerizable monomer and a gas into a nozzle, which includes a core flow channel radially surrounded by an outer flow channel. The ink formulation is directed into the outer flow channel and the gas is directed into the core flow channel. The ink formulation and the gas are ejected out of the nozzle as a stream of bubbles, where each bubble includes a core comprising the gas and a liquid shell overlying the core that comprises the ink formulation. After ejection, the polymerizable monomer is polymerized to form a solid polymeric shell from the liquid shell, and the bubbles are deposited on a substrate moving relative to the nozzle. Thus, a polymeric cellular solid having a predetermined geometry is printed.
    Type: Application
    Filed: May 10, 2023
    Publication date: September 7, 2023
    Applicant: UNIVERSITEIT TWENTE
    Inventors: Claas Willem VISSER, Dahlia Ningrum AMATO, Jennifer A. Lewis, Jochen MUELLER
  • Publication number: 20230234012
    Abstract: A micro-fluidic system, comprising at least one first nozzle (10) that releases at least one liquid jet (15) of a first liquid into a gaseous atmosphere and a second nozzle (20) that releases a liquid film jet (25) of a second liquid in said gaseous atmosphere. Said first jet (15) is directed to be incident of said liquid film (25) at an interaction area (50). Collecting means (40) are provided for receiving an interaction product (55) of said first and second liquid downstream of said interaction area. Support means (30) are provided, having a support surface (35) that receives and supports said liquid film (25) of said second liquid from said second nozzle (20). Said support surface (35) carries said liquid film to said interaction area (55) and said interaction area (55) is supported by said support surface (35).
    Type: Application
    Filed: June 28, 2021
    Publication date: July 27, 2023
    Inventors: Tom Kamperman, Sara Tahan Latibari, Vincent Alexander De Jong, Vasileios Trikalitis, Claas Willem Visser
  • Patent number: 11685108
    Abstract: A method of printing a cellular solid (120) by direct bubble writing comprises introducing an ink formulation (102) comprising a polymerizable monomer and a gas (104) into a nozzle (106), which includes a core flow channel (108) radially surrounded by an outer flow channel (110). The ink formulation is directed into the outer flow channel (110) and the gas is directed into the core flow channel (108). The ink formulation (102) and the gas (104) are ejected out of the nozzle (106) as a stream of bubbles (112), where each bubble includes a core (114) comprising the gas and a liquid shell (116) overlying the core that comprises the ink formulation. After ejection, the polymerizable monomer is polymerized to form a solid polymeric shell (118) from the liquid shell (116), and the bubbles are deposited on a substrate (122) moving relative to the nozzle (106). Thus, a polymeric cellular solid (120) having a predetermined geometry is printed.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: June 27, 2023
    Assignee: UNIVERSITEIT TWENTE
    Inventors: Claas Willem Visser, Dahlia Ningrum Amato, Jennifer A. Lewis, Jochen Mueller
  • Publication number: 20220364033
    Abstract: The invention provides a construct (1) comprising a number N of material types (100, 110, . . . ), wherein N is at least 2, wherein at least two of the material types (100, 110, . . . ) comprise granular material (101) comprising particles (10), wherein the granular material (101) at least defines an exterior surface (6) of the construct (1), wherein the construct (1) is self-supporting, and wherein the construct (1) is (i) self-healing or is (ii) configured for being self-healing by changing a liquid (15) content of the construct (1); wherein the different material types (100, 110, . . . ) mutually differ in at least one characteristic (19) selected from the group consisting of a physical characteristic and a chemical characteristic.
    Type: Application
    Filed: October 9, 2020
    Publication date: November 17, 2022
    Applicant: UNIVERSITEIT TWENTE
    Inventors: Claas Willem VISSER, Vasileios TRIKALITIS, Jeroen ROUWKEMA, Tom KAMPERMAN
  • Publication number: 20220161554
    Abstract: A production process and a related device comprises a formation process comprising: contacting a first liquid material and a second liquid material with each other at a contact point in a gas atmosphere, wherein at the contact point at least one of the first liquid material and the second liquid material is provided as a liquid jet propagating in a direction, to provide at the contact point a third jet of a coalesced third material propagating in a third direction.
    Type: Application
    Filed: December 8, 2021
    Publication date: May 26, 2022
    Inventors: Claas Willem Visser, Tom Kamperman, Hermanus Bernardus Johannes Karperien, Detlef Lohse
  • Publication number: 20220105723
    Abstract: A production process comprises a formation process that includes: contacting a first liquid material and a second liquid material with each other at a contact point in a gas atmosphere, wherein at the contact point at least one of the first liquid material and the second liquid material is provided as a liquid jet propagating in a direction, to provide at the contact point a third jet of a coalesced third material propagating in a third direction. A production process device can perform the formation process.
    Type: Application
    Filed: December 14, 2021
    Publication date: April 7, 2022
    Inventors: Claas Willem Visser, Tom Kamperman, Hermanus Bernardus Johannes Karperien, Detlef Lohse
  • Patent number: 11198293
    Abstract: A production process and a related device comprises a formation process comprising: contacting a first liquid material and a second liquid material with each other at a contact point in a gas atmosphere, wherein at the contact point at least one of the first liquid material and the second liquid material is provided as a liquid jet propagating in a direction, to provide at the contact point a third jet of a coalesced third material propagating in a third direction.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: December 14, 2021
    Assignee: IamFluidics Holding B.V.
    Inventors: Claas Willem Visser, Tom Kamperman, Hermanus Bernardus Johannes Karperien, Detlef Lohse
  • Publication number: 20210299943
    Abstract: A method of printing a cellular solid (120) by direct bubble writing comprises introducing an ink formulation (102) comprising a polymerizable monomer and a gas (104) into a nozzle (106), which includes a core flow channel (108) radially surrounded by an outer flow channel (110). The ink formulation is directed into the outer flow channel (110) and the gas is directed into the core channel (108). The ink formulation (102) and the gas (104) are ejected out of the nozzle (106) as a stream of bubbles (112), where each bubble includes a core (114) comprising the gas and a liquid shell (116) overlying the core that comprises the ink formulation. After ejection, the polymerizable monomer is polymerized to form a solid polymeric shell (118) from the liquid shell (116), and the bubbles are deposited on a substrate (122) moving relative to the nozzle (106). Thus, a polymeric cellular solid (120) having a predetermined geometry is printed.
    Type: Application
    Filed: August 2, 2019
    Publication date: September 30, 2021
    Applicant: UNIVERSITEIT TWENTE
    Inventors: Claas Willem VISSER, Dahlia Ningrum AMATO, Jennifer A. Lewis, Jochen MUELLER
  • Patent number: 11113120
    Abstract: Techniques are described for enabling users to configure the auto scaling of virtual computing resources using various intent-based auto scaling configurations. Intent-based configurations generally provide various indications of how a user intends to use a scalable group of virtual computing resources and what expectations a user might have about how those resources are scaled in response to changes in demand. A service provider network receives first input to create a scalable group of virtualized computing resources, the first input indicating at least one primary scaling configuration used by the hardware virtualization service to scale the scalable group of compute instances over time, and further receives second input indicating at least one secondary, intent-based scaling configuration used to scale the virtualized computing resources, for example, when the service is unable to scale the group of virtualized computing resources according to the at least one primary scaling condition.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: September 7, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: James Greenfield, Willem Visser, Diwakar Gupta
  • Publication number: 20200298563
    Abstract: A production process and a related device comprises a formation process comprising: contacting a first liquid material and a second liquid material with each other at a contact point in a gas atmosphere, wherein at the contact point at least one of the first liquid material and the second liquid material is provided as a liquid jet propagating in a direction, to provide at the contact point a third jet of a coalesced third material propagating in a third direction.
    Type: Application
    Filed: March 29, 2017
    Publication date: September 24, 2020
    Inventors: Claas Willem Visser, Tom KAMPERMAN, Hermanus Bernardus Johannes KARPERIEN, Detlef LOHSE
  • Publication number: 20090084700
    Abstract: A method of and apparatus for securing valuable articles wherein the articles are provided within a tamper evident primary container (10) or envelope, the primary container is contained within a secondary container (60) or box, and dispensing means (12) is provided in the secondary container (60) selectively to dispense a staining medium. The invention provides that the primary container (10) is partitioned into first (30) and second (32) portions that communicate with each other through at least one path (34.1); the articles to be secured are inserted into the first portion (30) which is then sealed (26); and the dispensing means (12, 42) is arranged to dispense the staining medium into the second portion (32) when activated. A plurality of spaced flow paths (34.2) may be formed between the first (30) and second (32) portions, the paths being arranged to prevent access to the first portion through the second portion.
    Type: Application
    Filed: February 9, 2005
    Publication date: April 2, 2009
    Inventors: Jan Willem Visser, Robert John Bristow, Trevor Collis Wilson
  • Patent number: 7475805
    Abstract: A tamper evident primary container (20) for storing and/or transporting valuables, particularly currency and other documents comprises an envelope (14) with tamper evident features and a partition for dividing the envelope into first (30) and second portions (32) that communicate with each other through at least one path. A first opening (22) in the envelope is provided through which articles can be inserted into the first portion and a seal for sealing the first opening is provided. A second opening (36) opens into the second portion through which a staining medium can be introduced into the second portion when desired. The path is constructed and arranged so as at least to inhibit access to the first portion through the second portion and to indicate tampering if access is breached. The partition is intermittent to form a plurality of paths that can permit a staining medium to be dispensed into the first portion through the second portion.
    Type: Grant
    Filed: February 9, 2005
    Date of Patent: January 13, 2009
    Inventor: Jan Willem Visser
  • Patent number: D272318
    Type: Grant
    Filed: August 25, 1981
    Date of Patent: January 24, 1984
    Assignee: B.V. Verenigde Knuststof Bedrijven
    Inventor: Willem Visser