Patents by Inventor Johnathon Holroyd
Johnathon Holroyd 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).
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Patent number: 12042986Abstract: The present disclosure is drawn to 3-dimensional printed parts that can include a conductive composite portion and an insulating portion. The conductive composite portion can include a matrix of fused thermoplastic polymer particles interlocked with a matrix of sintered elemental transition metal particles. The insulating portion can include a matrix of fused thermoplastic polymer particles that are continuous with the matrix of fused thermoplastic polymer particles in the conductive composite portion. The insulating portion can be substantially free of sintered elemental transition metal particles and can include transition metal oxide bronze particles.Type: GrantFiled: August 19, 2022Date of Patent: July 23, 2024Assignee: Hewlett-Packard Development Company, L.P.Inventors: Sterling Chaffins, Cassady Sparks Roop, Kevin P. Dekam, Vladek Kasperchik, Ali Emamjomeh, Johnathon Holroyd, Stephen G. Rudisill, Alexey S. Kabalnov
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Patent number: 11673330Abstract: A metallic build material granule includes a plurality of primary metal particles and a temporary binder agglomerating the plurality of primary metal particles together. The primary metal particles have a primary metal particle size ranging from about the 1 ?m to about 20 ?m. The primary metal particles are non-shape memory metal particles, and the metallic build material granule excludes shape memory metal particles.Type: GrantFiled: April 28, 2017Date of Patent: June 13, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Vladek Kasperchik, Michael G. Monroe, Johnathon Holroyd
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Publication number: 20220388239Abstract: The present disclosure is drawn to 3-dimensional printed parts that can include a conductive composite portion and an insulating portion. The conductive composite portion can include a matrix of fused thermoplastic polymer particles interlocked with a matrix of sintered elemental transition metal particles. The insulating portion can include a matrix of fused thermoplastic polymer particles that are continuous with the matrix of fused thermoplastic polymer particles in the conductive composite portion. The insulating portion can be substantially free of sintered elemental transition metal particles and can include transition metal oxide bronze particles.Type: ApplicationFiled: August 19, 2022Publication date: December 8, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Sterling CHAFFINS, Cassady Sparks ROOP, Kevin P. DEKAM, Vladek KASPERCHIK, Ali EMAMJOMEH, Johnathon HOLROYD, Stephen G. RUDISILL, Alexey S. KABALNOV
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Patent number: 11458675Abstract: The present disclosure is drawn to material sets for 3-dimensional printing. The material set can include a thermoplastic polymer powder having an average particle size from 20 ?m to 200 ?m, a conductive fusing agent composition including a transition metal, and nonconductive fusing agent composition. The nonconductive fusing agent composition can include transition metal oxide bronze particles.Type: GrantFiled: October 25, 2016Date of Patent: October 4, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Sterling Chaffins, Cassady Sparks Roop, Kevin P DeKam, Vladek Kasperchik, Ali Emamjomeh, Johnathon Holroyd, Stephen G Rudisill, Alexey S Kabalnov
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Patent number: 11292189Abstract: In an example of a method for three-dimensional (3D) printing, a polymeric or polymeric composite build material is applied. A dielectric agent is selectively applied on at least a portion of the polymeric or polymeric composite build material. The dielectric agent includes a dielectric material having an effective relative permittivity (?r) value ranging from 1.1 to about 10,000. A fusing agent is selectively applied on the at least the portion of the polymeric or polymeric composite build material, and the polymeric or polymeric composite build material is exposed to radiation to fuse the at least the portion of the polymeric or polymeric composite build material to form a region of a layer of a 3D part. The region exhibits a dielectric property, a piezoelectric property, or a combination thereof.Type: GrantFiled: November 17, 2017Date of Patent: April 5, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Andrew Van Brocklin, Kevin P. DeKam, Vladek Kasperchik, Johnathon Holroyd, Douglas Pederson, Sterling Chaffins
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Publication number: 20210283834Abstract: In an example of a method for three-dimensional (3D) printing, a polymeric or polymeric composite build material is applied. A dielectric agent is selectively applied on at least a portion of the polymeric or polymeric composite build material. The dielectric agent includes a dielectric material having an effective relative permittivity (?r) value ranging from 1.1 to about 10,000. A fusing agent is selectively applied on the at least the portion of the polymeric or polymeric composite build material, and the polymeric or polymeric composite build material is exposed to radiation to fuse the at least the portion of the polymeric or polymeric composite build material to form a region of a layer of a 3D part. The region exhibits a dielectric property, a piezoelectric property, or a combination thereof.Type: ApplicationFiled: November 17, 2017Publication date: September 16, 2021Inventors: Andrew Van Brocklin, Kevin P. DeKam, Vladek Kasperchik, Johnathon Holroyd, Douglas Pederson, Sterling Chaffins
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Publication number: 20210197257Abstract: A metallic build material granule includes a plurality of primary metal particles and a temporary binder agglomerating the plurality of primary metal particles together. The primary metal particles have a primary metal particle size ranging from about the 1 ?m to about 20 ?m. The primary metal particles are non-shape memory metal particles, and the metallic build material granule excludes shape memory metal particles.Type: ApplicationFiled: April 28, 2017Publication date: July 1, 2021Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Vladek KASPERCHIK, Michael G. Monroe, Johnathon HOLROYD
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Publication number: 20190270135Abstract: A metallic build material granule includes a plurality of primary metal particles and a temporary binder agglomerating the plurality of primary metal particles together. The primary metal particles have a primary metal particle size ranging from about the 1 ?m to about 20 ?m. The primary metal particles are non-shape memory metal particles, and the metallic build material granule excludes shape memory metal particles.Type: ApplicationFiled: May 14, 2019Publication date: September 5, 2019Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Vladek Kasperchik, Michael G. Monroe, Johnathon Holroyd
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Publication number: 20190240898Abstract: The present disclosure is drawn to material sets for 3-dimensional printing. The material set can include a thermoplastic polymer powder having an average particle size from 20 ?m to 200 ?m, a conductive fusing agent composition including a transition metal, and nonconductive fusing agent composition. The nonconductive fusing agent composition can include transition metal oxide bronze particles.Type: ApplicationFiled: October 25, 2016Publication date: August 8, 2019Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Sterling Chaffins, Cassady Sparks Roop, Kevin P DeKam, Vladek Kasperchik, Ali Emamjomeh, Johnathon Holroyd, Stephen G Rudisill, Alexey S Kabalnov