Patents by Inventor John Hendrik

John Hendrik 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: 10875949
    Abstract: The present invention relates to polymerizable and photochemically crosslinkable compositions which contain at least one polymerizable benzaldehyde derivative according to general formula I and which are suitable as materials for technical and medical applications, for example in surgery or ophthalmology, and in particular as dental materials.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: December 29, 2020
    Assignee: Ivoclar Vivadent AG
    Inventors: Norbert Moszner, John Hendrik, Iris Lamparth, Christopher Barner-Kowollik, Tim Krappitz, Florian Feist
  • Publication number: 20200079888
    Abstract: The present invention relates to polymerizable and photochemically crosslinkable compositions which contain at least one polymerizable benzaldehyde derivative according to general formula I and which are suitable as materials for technical and medical applications, for example in surgery or ophthalmology, and in particular as dental materials.
    Type: Application
    Filed: August 23, 2019
    Publication date: March 12, 2020
    Inventors: Norbert Moszner, John Hendrik, Iris Lamparth, Christopher Barner-Kowollik, Tim Krappitz, Fiorian Feist
  • Publication number: 20190240924
    Abstract: The present invention relates to a post processing arrangement for shaped bodies manufactured additively by photopolymerization, which has a cleaning station for cleaning and a finishing station for post-exposure of the shaped body, characterized in that the cleaning station and the finishing station are housed in a housing (2), capable of standing on a horizontal stand surface, in which the cleaning station (22) is housed in a lower section (20) and the finishing station (42) is housed in an upper section (40) lying vertically above it, wherein the lower and upper sections can be connected to each other by a passage with a closure (24) which can be opened, in that a vertical lifting apparatus (44) with a vertical guide (46) and a holder (48), vertically displaceable thereon, to which the shaped body (1) can be directly or indirectly secured, runs through the finishing station in order to be able to transport the shaped body back and forth between cleaning station (22) and finishing station (42), in that a co
    Type: Application
    Filed: February 5, 2019
    Publication date: August 8, 2019
    Inventor: John HENDRIK
  • Patent number: 8746375
    Abstract: Wellbore tools include a body and a superhydrophobic surface disposed over at least a portion of the body. The superhydrophobic surface includes a patterned surface of a hydrophobic material exhibiting a higher hydrophobicity than an unpatterned surface of the hydrophobic material. A wellbore tool may include a seal, at least one sensor, and at least one flow line, each having at least one superhydrophobic surface. Methods of forming wellbore tools include forming a body, forming a hydrophobic surface over at least a portion of the body, and forming a pattern in a surface of the body, such that the patterned surface exhibits a higher hydrophobicity than an unpatterned surface of the same material.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: June 10, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: John Hendrik, Sunil Kumar
  • Publication number: 20030090034
    Abstract: A device and a process for producing three-dimensional objects is indicated. The device has a container (1) for a medium (2) and a three-dimensionally positionable dispenser (4) for release of a material (3), the addition of which to the medium (2) leads to the formation of solid structures, into the medium (2). Addition of the material (3) by moving the dispenser in XYZ direction on a platform (8) below the filling height of the first material (2) in the container (1) leads to the formation of three-dimensional objects.
    Type: Application
    Filed: October 11, 2002
    Publication date: May 15, 2003
    Inventors: Rolf Mlhaupt, R?uuml;diger Landers, John Hendrik