Patents by Inventor Arunkumar Natarajan
Arunkumar Natarajan 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: 12595392Abstract: A water-based binder solution comprises a thermoplastic binder, greater than or equal to 4 wt % to less than or equal to 20 wt % of a non-aqueous solvent having a boiling point greater than or equal to 100° C. and less than or equal to 175° C., and water. The thermoplastic binder comprises a first polymer strand having a weight average molecular weight (Mw) of from 5,000 g/mol to 15,000 g/mol; and at least one of a second polymer strand having a weight average molecular weight (Mw) of from 10,000 g/mol to 50,000 g/mol and a third polymer strand having a weight average molecular weight (Mw) of from 1,000 g/mol to 5,000 g/mol. A method of monitoring a print head of an additive manufacture process comprises depositing a water-based binder solution on the thermal paper.Type: GrantFiled: December 26, 2024Date of Patent: April 7, 2026Assignee: General Electric CompanyInventors: Arunkumar Natarajan, William C. Alberts
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Publication number: 20260055292Abstract: A binder solution comprises a fugitive metal precursor, a thermoplastic binder, and a solvent. The fugitive metal precursor may comprise an alkaline earth metal, a transition metal, a post-transition metal, a metalloid, a rare earth metal, or combinations thereof. The fugitive metal precursor may comprise a salt such as carboxylate, nitrate, sulfate, carbonate, formate, chloride, halide, derivatives thereof, and combinations thereof. A method of manufacturing a part includes depositing a layer of particulate material on a working surface, selectively applying a binder solution into the layer of particulate material in a pattern representative of a layer of the part, repeating the steps of depositing and selectively applying to form a plurality of layers of particulate material with the applied binder solution, and curing the applied binder solution in the plurality of layers of particulate material with the applied binder solution to evaporate the solvent and form a green body part.Type: ApplicationFiled: October 30, 2025Publication date: February 26, 2026Applicant: General Electric CompanyInventors: Arunkumar Natarajan, Kwok Pong Chan, William C. Alberts, Xi Yang, Mary Kathryn Thompson
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Patent number: 12551947Abstract: A binder solution comprises a fugitive metal precursor, a thermoplastic binder, and a solvent. The fugitive metal precursor may comprise an alkaline earth metal, a transition metal, a post-transition metal, a metalloid, a rare earth metal, or combinations thereof. The fugitive metal precursor may comprise a salt such as carboxylate, nitrate, sulfate, carbonate, formate, chloride, halide, derivatives thereof, and combinations thereof. A method of manufacturing a part includes depositing a layer of particulate material on a working surface, selectively applying a binder solution into the layer of particulate material in a pattern representative of a layer of the part, repeating the steps of depositing and selectively applying to form a plurality of layers of particulate material with the applied binder solution, and curing the applied binder solution in the plurality of layers of particulate material with the applied binder solution to evaporate the solvent and form a green body part.Type: GrantFiled: May 20, 2021Date of Patent: February 17, 2026Assignee: General Electric CompanyInventors: Arunkumar Natarajan, Kwok Pong Chan, William C. Alberts, Xi Yang, Mary Kathryn Thompson
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Publication number: 20250289965Abstract: A dip-coat binder solution comprises a metal dip-coat powder and a dip-coat binder. The dip-coat binder solution has a viscosity greater than or equal to 1 cP and less than or equal to 40 cP. The metal dip-coat powder may comprise a stainless steel alloy, a nickel alloy, a copper alloy, a copper-nickel alloy, a cobalt-chrome alloy, a titanium alloy, an aluminum alloy, a tungsten alloy, or a combination thereof. A method of forming a part includes providing a green body part comprising a plurality of layers of print powder, dipping the green body part in a dip-coat binder solution to form a dip-coated green body part, and heating the dip-coated green body part. After dipping, the dip-coated green body part has a surface roughness Ra less than or equal to 10 ?m.Type: ApplicationFiled: June 3, 2025Publication date: September 18, 2025Applicant: General Electric CompanyInventors: Arunkumar Natarajan, Sivaruban Shivanathan, Samantha Jo Rowe, Carlos H. Bonilla
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Patent number: 12398261Abstract: In various embodiments, a water-based binder solution for use in additive manufacturing, includes a thermoplastic binder. The thermoplastic binder includes a first polymer strand having a weight average molecular weight (Mw) of from greater than or equal to 5,000 g/mol to less than or equal to 15,000 g/mol, a second polymer strand having a weight average molecular weight of from greater than or equal to 10,000 g/mol to less than or equal to 50,000 g/mol, and a third polymer strand having a weight average molecular weight of from greater than or equal to 1,000 g/mol to less than or equal to 5,000 g/mol. The binder solution further comprises from greater than or equal to 0.1 wt % to less than or equal to 5 wt % of a non-aqueous solvent having a boiling point of greater than 100° C.Type: GrantFiled: April 3, 2023Date of Patent: August 26, 2025Assignee: General Electric CompanyInventors: Arunkumar Natarajan, William C. Alberts, Vadim Bromberg
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Publication number: 20250222519Abstract: An additive manufacturing support including a wax form comprising a first surface and a second surface that is opposite the first surface and at least one ceramic support embedded in the wax form. A method of additively manufacturing a part including forming a green body part and positioning the green body part on the additive manufacturing support. The green body part is heated above a first temperature to remove the binder, thereby forming a brown body part. The brown body part is heated above a second temperature to sinter, thereby forming a consolidated part.Type: ApplicationFiled: January 9, 2024Publication date: July 10, 2025Applicant: General Electric CompanyInventors: Elliot C. Dilger, Sivaruban Shivanathan, Arunkumar Natarajan, Srinivas Pendurti, Lonnie R. Stewart
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Patent number: 12351736Abstract: A dip-coat binder solution comprises a metal dip-coat powder and a dip-coat binder. The dip-coat binder solution has a viscosity greater than or equal to 1 cP and less than or equal to 40 cP. The metal dip-coat powder may comprise a stainless steel alloy, a nickel alloy, a copper alloy, a copper-nickel alloy, a cobalt-chrome alloy, a titanium alloy, an aluminum alloy, a tungsten alloy, or a combination thereof. A method of forming a part includes providing a green body part comprising a plurality of layers of print powder, dipping the green body part in a dip-coat binder solution to form a dip-coated green body part, and heating the dip-coated green body part. After dipping, the dip-coated green body part has a surface roughness Ra less than or equal to 10 ?m.Type: GrantFiled: October 13, 2021Date of Patent: July 8, 2025Assignee: GENERAL ELECTRIC COMPANYInventors: Arunkumar Natarajan, Sivaruban Shivanathan, Samantha Jo Rowe, Carlos H. Bonilla
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Patent number: 12318842Abstract: A binder solution configured for use in binder jet printing is provided. The binder solution may include a primer, a surfactant, and a linkable thermoplastic binder comprising a first polymer strand and a second polymer strand, wherein the first polymer strand comprises a first functional group and the second polymer strand comprises a second functional group, and wherein the first and second functional groups are configured to non-covalently couple at least a portion of the second polymer strand with at least a portion of the first polymer strand; wherein the first polymer strand and the second polymer strand are both polymer strands of the same thermoplastic polymer, and wherein the first polymer strand further comprises the second functional group and the second polymer strand further comprises the first functional group.Type: GrantFiled: June 13, 2022Date of Patent: June 3, 2025Assignee: General Electric CompanyInventors: Arunkumar Natarajan, Carlos Bonilla Gonzalez, Kwok Pong Chan
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Publication number: 20250122401Abstract: A water-based binder solution comprises a thermoplastic binder, greater than or equal to 4 wt % to less than or equal to 20 wt % of a non-aqueous solvent having a boiling point greater than or equal to 100° C. and less than or equal to 175° C., and water. The thermoplastic binder comprises a first polymer strand having a weight average molecular weight (Mw) of from 5,000 g/mol to 15,000 g/mol; and at least one of a second polymer strand having a weight average molecular weight (Mw) of from 10,000 g/mol to 50,000 g/mol and a third polymer strand having a weight average molecular weight (Mw) of from 1,000 g/mol to 5,000 g/mol. A method of monitoring a print head of an additive manufacture process comprises depositing a water-based binder solution on the thermal paper.Type: ApplicationFiled: December 26, 2024Publication date: April 17, 2025Applicant: General Electric CompanyInventors: Arunkumar Natarajan, William C. Alberts
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Patent number: 12221553Abstract: A water-based binder solution comprises a thermoplastic binder, greater than or equal to 4 wt % to less than or equal to 20 wt % of a non-aqueous solvent having a boiling point greater than or equal to 100° C. and less than or equal to 175° C., and water. The thermoplastic binder comprises a first polymer strand having a weight average molecular weight (Mw) of from 5,000 g/mol to 15,000 g/mol; and at least one of a second polymer strand having a weight average molecular weight (Mw) of from 10,000 g/mol to 50,000 g/mol and a third polymer strand having a weight average molecular weight (Mw) of from 1,000 g/mol to 5,000 g/mol. A method of monitoring a print head of an additive manufacture process comprises depositing a water-based binder solution on the thermal paper.Type: GrantFiled: July 28, 2022Date of Patent: February 11, 2025Assignee: General Electric CompanyInventors: Arunkumar Natarajan, William C. Alberts
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Publication number: 20240408876Abstract: Embodiments of the present disclosure are directed to additive manufacturing apparatuses, cleaning stations incorporated therein, and methods of cleaning using the cleaning stations.Type: ApplicationFiled: August 23, 2024Publication date: December 12, 2024Applicant: General Electric CompanyInventors: William C. Alberts, Vadim Bromberg, Kwok Pong Chan, Robert Edgar Estes, Jacob Mayer, Joshua Tyler Mook, Janet Mekker, William Cosmo Murphy, Arunkumar Natarajan, Mary Kathryn Thompson, Xi Yang, Travis Sands
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DIP-COAT BINDER SOLUTIONS COMPRISING A DIP-COAT METALLIC PRECURSOR FOR USE IN ADDITIVE MANUFACTURING
Publication number: 20240367231Abstract: A dip-coat binder solution comprises a dip-coat metallic precursor and a dip-coat binder. The dip-coat binder solution has a viscosity greater than or equal to 1 cP and less than or equal to 150 cP. A method of forming a part includes providing a green body part comprising a plurality of layers of print powder and a print binder, dipping the green body part in a dip-coat binder solution, and heating the dip-coated green body part. The dip-coated green body part is heated to form a coated green body part having a metallic precursor coating on an outer surface of the coated green body part. The coated green body part has a strength greater than or equal to 10 MPa.Type: ApplicationFiled: July 17, 2024Publication date: November 7, 2024Applicant: General Electric CompanyInventors: Arunkumar Natarajan, Carlos H. Bonilla -
Patent number: 12103227Abstract: An article of manufacture includes a part structure formed via a first additive manufacturing process and a floating structure within the part structure which is mechanically decoupled from the part structure. The floating structure is formed concurrently with the part structure via the first additive manufacturing process.Type: GrantFiled: May 13, 2022Date of Patent: October 1, 2024Assignee: General Electric CompanyInventors: Daniel Jason Erno, Arunkumar Natarajan, Ken Ivcar Salas Nobrega, Ananda Barua
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Patent number: 12097709Abstract: Embodiments of the present disclosure are directed to additive manufacturing apparatuses, cleaning stations incorporated therein, and methods of cleaning using the cleaning stations.Type: GrantFiled: May 22, 2020Date of Patent: September 24, 2024Assignee: General Electric CompanyInventors: William C. Alberts, Vadim Bromberg, Kwok Pong Chan, Robert Edgar Estes, Jacob Mayer, Joshua Tyler Mook, Janet Mekker, William Cosmo Murphy, Arunkumar Natarajan, Mary Kathryn Thompson, Xi Yang, Travis Sands
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Dip-coat binder solutions comprising a dip-coat metallic precursor for use in additive manufacturing
Patent number: 12064810Abstract: A dip-coat binder solution comprises a dip-coat metallic precursor and a dip-coat binder. The dip-coat binder solution has a viscosity greater than or equal to 1 cP and less than or equal to 150 cP. A method of forming a part includes providing a green body part comprising a plurality of layers of print powder and a print binder, dipping the green body part in a dip-coat binder solution, and heating the dip-coated green body part. The dip-coated green body part is heated to form a coated green body part having a metallic precursor coating on an outer surface of the coated green body part. The coated green body part has a strength greater than or equal to 10 MPa.Type: GrantFiled: October 13, 2021Date of Patent: August 20, 2024Assignee: General Electric CompanyInventors: Arunkumar Natarajan, Carlos H. Bonilla -
Patent number: 12004043Abstract: In one aspect, the present disclosure relates to a method that includes presenting a first user interface (UI) and a second UI on a mobile device. The first UI may include a map display and a control to compose a note. The method may include, in response to a user of the mobile device activating the control to compose the note, presenting a second UI including: an input to receive text for the note, one or more controls to select a picture for the note, and a control to save the note. The method may include, in response to the user activating the control to save the note: determining a location for the note using a geo-location sensor within the mobile device, sending the received text, the selected picture, and the location for the note to a server device, and displaying an indication of the note on the map display based on the location determined for the note.Type: GrantFiled: September 17, 2021Date of Patent: June 4, 2024Assignee: Capital One Services, LLCInventors: Arunkumar Natarajan, Venkata Mandali
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Patent number: 11921972Abstract: A computer-implemented method of diagnosing a technology environment using augmented reality may include: receiving status information corresponding to the technology environment; generating, based on the status information, a 3D visualization of the technology environment; causing an augmented reality device to display the 3D visualization, the 3D visualization including one or more first level icons; receiving first selection information from the augmented reality device, the first selection information corresponding to a first selection gesture performed by a user of the augmented reality device; and in response to the first selection information, causing the augmented reality device to display one or more second level icons as part of the 3D visualization.Type: GrantFiled: October 13, 2022Date of Patent: March 5, 2024Assignee: Capital One Services, LLCInventors: Arunkumar Natarajan, Omari Felix, Colleen Frank, Venkata Mandali
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Patent number: 11919233Abstract: Various embodiments provide a method of additively manufacturing a part including depositing a layer of a powder on a working surface, depositing a binder solution on the layer of the powder at first locations, and depositing a sintering aid solution on the layer of the powder at second locations. The sintering aid solution comprises a sintering aid in a solvent. In various embodiments, the sintering aid enables an increased brown strength as compared to parts containing unbound powder. The method enables binders that provide high green strength to be used at the edges of the part, while also balancing a shortened debind time with an increased brown strength. Embodiments in which binder solution is deposited according to a predetermined pattern at second locations are also described.Type: GrantFiled: August 17, 2022Date of Patent: March 5, 2024Assignee: General Electric CompanyInventors: Mary Kathryn Thompson, Arunkumar Natarajan, Kwok Pong Chan, Vadim Bromberg, Xi Yang, Ananda Barua, William C. Alberts
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Publication number: 20240051019Abstract: A green body part comprises a first green portion, a second green portion, an interfacial joint between the first green portion and the second green portion, and a joint material disposed within the interfacial joint. The joint material comprises a powder having a particle size distribution than or equal to 1 ?m and less than or equal to 50 ?m. A method of manufacturing a joined part includes applying a joint material on a face of the first green portion and contacting the second green portion to the joint material on the face of the first green portion to form a joined green body part.Type: ApplicationFiled: July 17, 2023Publication date: February 15, 2024Applicant: General Electric CompanyInventors: Arunkumar Natarajan, Kwok Pong Chan, William C. Alberts, Sivaruban Shivanathan, Elliot C. Dilger, Gregg H. Wilson
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Publication number: 20240034902Abstract: A water-based binder solution comprises a thermoplastic binder, greater than or equal to 4 wt % to less than or equal to 20 wt % of a non-aqueous solvent having a boiling point greater than or equal to 100° C. and less than or equal to 175° C., and water. The thermoplastic binder comprises a first polymer strand having a weight average molecular weight (Mw) of from 5,000 g/mol to 15,000 g/mol; and at least one of a second polymer strand having a weight average molecular weight (Mw) of from 10,000 g/mol to 50,000 g/mol and a third polymer strand having a weight average molecular weight (Mw) of from 1,000 g/mol to 5,000 g/mol. A method of monitoring a print head of an additive manufacture process comprises depositing a water-based binder solution on the thermal paper.Type: ApplicationFiled: July 28, 2022Publication date: February 1, 2024Applicant: General Electric CompanyInventors: Arunkumar Natarajan, William C. Alberts