Patents by Inventor Donald J. Holzwarth

Donald J. Holzwarth 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: 10675803
    Abstract: A three-dimensional model built with an extrusion-based digital manufacturing system, and having a perimeter based on a contour tool path that defines an interior region of a layer of the three-dimensional model, where at least one of a start point and a stop point of the contour tool path is located within the interior region of the layer.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: June 9, 2020
    Assignee: STRATASYS, INC.
    Inventors: Paul E. Hopkins, Donald J. Holzwarth
  • Publication number: 20190202104
    Abstract: A three-dimensional model built with an extrusion-based digital manufacturing system, and having a perimeter based on a contour tool path that defines an interior region of a layer of the three-dimensional model, where at least one of a start point and a stop point of the contour tool path is located within the interior region of the layer.
    Type: Application
    Filed: March 12, 2019
    Publication date: July 4, 2019
    Inventors: Paul E. Hopkins, Donald J. Holzwarth
  • Patent number: 10093039
    Abstract: A three-dimensional part is printed using an additive manufacturing technique. The three-dimensional part includes an outer wall having an outer surface defining a shape of a part and in interior surface defining an interior cavity. The part includes a plurality of first sections having a plurality of printed layers, each printed layer of the first section having a plurality of wall segments that form triangle shaped cells wherein each of the plurality of first sections are attached to the interior surface of the outer wall.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: October 9, 2018
    Assignee: Stratasys, Inc.
    Inventors: Subramaniam Jayanti, Erik K. Heide, Donald J. Holzwarth, Thomas James Studanski, Alissa Ann Wild, Kevin C. Johnson
  • Publication number: 20170320254
    Abstract: A three-dimensional model built with an extrusion-based digital manufacturing system, and having a perimeter based on a contour tool path that defines an interior region of a layer of the three-dimensional model, where at least one of a start point and a stop point of the contour tool path is located within the interior region of the layer.
    Type: Application
    Filed: July 26, 2017
    Publication date: November 9, 2017
    Inventors: Paul E. Hopkins, Donald J. Holzwarth
  • Patent number: 9724866
    Abstract: A three-dimensional model built with an extrusion-based digital manufacturing system, and having a perimeter based on a contour tool path that defines an interior region of a layer of the three-dimensional model, where at least one of a start point and a stop point of the contour tool path is located within the interior region of the layer.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: August 8, 2017
    Assignee: Stratasys, Inc.
    Inventors: Paul E. Hopkins, Donald J. Holzwarth
  • Publication number: 20160257033
    Abstract: A three-dimensional part is printed using an additive manufacturing technique. The three-dimensional part includes an outer wall having an outer surface defining a shape of a part and in interior surface defining an interior cavity. The part includes a plurality of first sections having a plurality of printed layers, each printed layer of the first section having a plurality of wall segments that form triangle shaped cells wherein each of the plurality of first sections are attached to the interior surface of the outer wall.
    Type: Application
    Filed: May 19, 2016
    Publication date: September 8, 2016
    Inventors: Subramaniam Jayanti, Erik K. Heide, Donald J. Holzwarth, Thomas James Studanski, Alissa Ann Wild, Kevin C. Johnson
  • Publication number: 20150151475
    Abstract: A three-dimensional model built with an extrusion-based digital manufacturing system, and having a perimeter based on a contour tool path that defines an interior region of a layer of the three-dimensional model, where at least one of a start point and a stop point of the contour tool path is located within the interior region of the layer.
    Type: Application
    Filed: December 7, 2012
    Publication date: June 4, 2015
    Inventors: Paul E. Hopkins, Donald J. Holzwarth
  • Patent number: 8974715
    Abstract: A three-dimensional model built with an extrusion-based digital manufacturing system, and having a perimeter based on a contour tool path that defines an interior region of a layer of the three-dimensional model, where at least one of a start point and a stop point of the contour tool path is located within the interior region of the layer.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: March 10, 2015
    Assignee: Stratasys, Inc.
    Inventors: Paul E. Hopkins, Donald J. Holzwarth
  • Publication number: 20140291893
    Abstract: A three-dimensional model built with an extrusion-based digital manufacturing system, and having a perimeter based on a contour tool path that defines an interior region of a layer of the three-dimensional model, where at least one of a start point and a stop point of the contour tool path is located within the interior region of the layer.
    Type: Application
    Filed: June 12, 2014
    Publication date: October 2, 2014
    Inventors: Paul E. Hopkins, Donald J. Holzwarth
  • Patent number: 8349239
    Abstract: A three-dimensional model built with an extrusion-based digital manufacturing system, and having a perimeter based on a contour tool path that defines an interior region of a layer of the three-dimensional model, where at least one of a start point and a stop point of the contour tool path is located within the interior region of the layer.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: January 8, 2013
    Assignee: Stratasys, Inc.
    Inventors: Paul E. Hopkins, Donald J. Holzwarth
  • Patent number: 8050786
    Abstract: A method for modifying a computer-aided design model of a three-dimensional object, the method comprising establishing a threshold wall width, providing at least one sliced layer polyline of the computer-aided design model, determining a first distance between first and second portions of the at least one sliced layer polyline, and adjusting locations of the first and second portion to provide a second distance if the first distance is less than the threshold wall width, where the second distance is about equal to the threshold wall width, or greater.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: November 1, 2011
    Assignee: Stratasys, Inc.
    Inventor: Donald J. Holzwarth
  • Patent number: 7917243
    Abstract: A method for generating build sequence data for a computer-aided design model of a three-dimensional object, the method comprising identifying a location of an insert data representation in the computer-aided design model, slicing the computer-aided design model into a plurality of sliced layers, generating a plurality of support layers for at least a portion of the plurality of sliced layers, and generating an unfilled region in the computer-aided design model at the identified location of the insert data representation.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: March 29, 2011
    Assignee: Stratasys, Inc.
    Inventors: David M. Kozlak, Donald J. Holzwarth, J. Samuel Batchelder
  • Publication number: 20110070394
    Abstract: A three-dimensional model built with an extrusion-based digital manufacturing system, and having a perimeter based on a contour tool path that defines an interior region of a layer of the three-dimensional model, where at least one of a start point and a stop point of the contour tool path is located within the interior region of the layer.
    Type: Application
    Filed: September 23, 2009
    Publication date: March 24, 2011
    Applicant: STRATASYS, INC.
    Inventors: Paul E. Hopkins, Donald J. Holzwarth
  • Patent number: 7899569
    Abstract: A method of forming a three-dimensional object using an extrusion-based layered deposition system, the method comprising generating a build path for building a layer of the three-dimensional object, where the build path defines a void region. The method further comprising generating at least one intermediate path in the void region, and generating a remnant path based at least in part on the at least one intermediate path.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: March 1, 2011
    Assignee: Stratasys, Inc.
    Inventor: Donald J. Holzwarth
  • Publication number: 20090299517
    Abstract: A method of forming a three-dimensional object using an extrusion-based layered deposition system, the method comprising generating a build path for building a layer of the three-dimensional object, where the build path defines a void region. The method further comprising generating at least one intermediate path in the void region, and generating a remnant path based at least in part on the at least one intermediate path.
    Type: Application
    Filed: June 19, 2009
    Publication date: December 3, 2009
    Applicant: Stratasys, Inc.
    Inventor: Donald J. Holzwarth
  • Publication number: 20090174709
    Abstract: A method for generating build sequence data for a computer-aided design model of a three-dimensional object, the method comprising identifying a location of an insert data representation in the computer-aided design model, slicing the computer-aided design model into a plurality of sliced layers, generating a plurality of support layers for at least a portion of the plurality of sliced layers, and generating an unfilled region in the computer-aided design model at the identified location of the insert data representation.
    Type: Application
    Filed: January 8, 2008
    Publication date: July 9, 2009
    Applicant: Stratasys, Inc.
    Inventors: David M. Kozlak, Donald J. Holzwarth, J. Samuel Batchelder
  • Patent number: 7555357
    Abstract: A method of forming a three-dimensional object using an extrusion-based layered deposition system, the method comprising generating a build path for building a layer of the three-dimensional object, where the build path defines a void region. The method further comprising generating at least one intermediate path in the void region, and generating a remnant path based at least in part on the at least one intermediate path.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: June 30, 2009
    Assignee: Stratasys, Inc.
    Inventor: Donald J. Holzwarth
  • Publication number: 20090018685
    Abstract: A method for modifying a computer-aided design model of a three-dimensional object, the method comprising establishing a threshold wall width, providing at least one sliced layer polyline of the computer-aided design model, determining a first distance between first and second portions of the at least one sliced layer polyline, and adjusting locations of the first and second portion to provide a second distance if the first distance is less than the threshold wall width, where the second distance is about equal to the threshold wall width, or greater.
    Type: Application
    Filed: July 11, 2007
    Publication date: January 15, 2009
    Applicant: Stratasys, Inc.
    Inventor: Donald J. Holzwarth
  • Patent number: 7403833
    Abstract: A method and system for building one or more three-dimensional objects, where the method includes providing a computer-aided design model of a three-dimensional object having an initial spatial orientation in a coordinate system, and determining an optimal spatial orientation of the computer-aided design model in the coordinate system based on one or more criteria.
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: July 22, 2008
    Assignee: Stratasys, Inc.
    Inventors: Erik K. Heide, Donald J. Holzwarth