The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 05, 2025

Filed:

Nov. 30, 2023
Applicant:

The Johns Hopkins University, Baltimore, MD (US);

Inventors:

Steven M. Storck, Timonium, MD (US);

Morgana M. Trexler, Baltimore, MD (US);

Andrew M. Lennon, Ellicott City, MD (US);

Ian D Mccue, Washington, DC (US);

Salahudin N. Nimer, Fulton, MD (US);

Christopher M. Peitsch, Perry Hall, MD (US);

Assignee:

The Johns Hopkins University, Baltimore, MD (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 64/153 (2017.01); B22F 1/00 (2022.01); B22F 10/00 (2021.01); B22F 10/28 (2021.01); B22F 10/36 (2021.01); B22F 10/366 (2021.01); B22F 10/38 (2021.01); B22F 10/73 (2021.01); B22F 12/41 (2021.01); B22F 12/43 (2021.01); B22F 12/44 (2021.01); B22F 12/45 (2021.01); B22F 12/90 (2021.01); B29C 64/273 (2017.01); B29C 64/393 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01); B33Y 70/10 (2020.01); G05B 19/4099 (2006.01); B22F 10/32 (2021.01); B22F 10/64 (2021.01);
U.S. Cl.
CPC ...
B29C 64/153 (2017.08); B22F 1/00 (2013.01); B22F 10/00 (2021.01); B22F 10/28 (2021.01); B22F 10/36 (2021.01); B22F 10/366 (2021.01); B22F 10/38 (2021.01); B22F 12/43 (2021.01); B29C 64/273 (2017.08); B29C 64/393 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12); B33Y 70/10 (2020.01); G05B 19/4099 (2013.01); B22F 10/32 (2021.01); B22F 10/64 (2021.01); B22F 10/73 (2021.01); B22F 12/41 (2021.01); B22F 12/44 (2021.01); B22F 12/45 (2021.01); B22F 12/90 (2021.01); G05B 2219/49023 (2013.01);
Abstract

Additive manufacturing processes, systems and three-dimensional articles include the formation of voxels and/or portions of three-dimensional articles with different properties relative to other voxels and/or portions. The processes generally include changing one or more laser beam parameters including power level, exposure time, hatch spacing, point distance, velocity, and energy density during the formation of selected voxels and/or portions of the three-dimensional articles. Also disclosed are processes that include an additive manufacturing process that provides localized secondary heat treatment of certain voxels and/or regions at a temperature below the melting point of the three-dimensional article but high enough to effect a localized property change.


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