Patents by Inventor Dilip Chatterjee
Dilip Chatterjee 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: 10233386Abstract: Methods are described to make strong, tough, and/or lightweight glass-ceramic composites having a crystalline phase and an amorphous phase generated by viscous reaction sintering of a complex mixture of oxides and other materials. The present invention further relates to strong, tough, and lightweight glass-ceramic composites that can be used as proppants and for other uses.Type: GrantFiled: January 21, 2016Date of Patent: March 19, 2019Assignee: Halliburton Energy Services, Inc.Inventors: Dilip Chatterjee, Jody Pham, Shanghua Wu, Yuming Xie, Christopher E. Coker
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Patent number: 10000690Abstract: The present invention relates to lightweight high strength microsphere containing ceramic particles having controlled microsphere placement and/or size and microsphere morphology, which produces an improved balance of specific gravity and crush strength such that they can be used in applications such as proppants to prop open subterranean formation fractions. Proppant formulations are further disclosed which use one or more microsphere containing ceramic particles of the present invention. Methods to prop open subterranean formation fractions are further disclosed. In addition, other uses for the microsphere containing ceramic particles of the present invention are further disclosed, as well as methods of making the microsphere containing ceramic particles.Type: GrantFiled: May 9, 2016Date of Patent: June 19, 2018Assignee: Halliburton Energy Services, Inc.Inventors: Shanghua Wu, Yuming Xie, Christopher E. Coker, Dilip Chatterjee
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Publication number: 20170022410Abstract: The present invention relates to lightweight high strength microsphere containing ceramic particles having controlled microsphere placement and/or size and microsphere morphology, which produces an improved balance of specific gravity and crush strength such that they can be used in applications such as proppants to prop open subterranean formation fractions. Proppant formulations are further disclosed which use one or more microsphere containing ceramic particles of the present invention. Methods to prop open subterranean formation fractions are further disclosed. In addition, other uses for the microsphere containing ceramic particles of the present invention are further disclosed, as well as methods of making the microsphere containing ceramic particles.Type: ApplicationFiled: May 9, 2016Publication date: January 26, 2017Applicant: Halliburton Energy Services, Inc.Inventors: Shanghua Wu, Yuming Xie, Christopher E. Coker, Dilip Chatterjee
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Patent number: 9410078Abstract: The present invention relates to lightweight high strength microsphere containing ceramic particles having controlled microsphere placement and/or size and microsphere morphology, which produces an improved balance of specific gravity and crush strength such that they can be used in applications such as proppants to prop open subterranean formation fractions. Proppant formulations are further disclosed which use one or more microsphere containing ceramic particles of the present invention. Methods to prop open subterranean formation fractions are further disclosed. In addition, other uses for the microsphere containing ceramic particles of the present invention are further disclosed, as well as methods of making the microsphere containing ceramic particles.Type: GrantFiled: April 15, 2014Date of Patent: August 9, 2016Assignee: Halliburton Energy Services, Inc.Inventors: Shanghua Wu, Yuming Xie, Christopher E. Coker, Dilip Chatterjee
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Publication number: 20160222281Abstract: Methods are described to make strong, tough, and/or lightweight glass-ceramic composites having a crystalline phase and an amorphous phase generated by viscous reaction sintering of a complex mixture of oxides and other materials. The present invention further relates to strong, tough, and lightweight glass-ceramic composites that can be used as proppants and for other uses.Type: ApplicationFiled: January 21, 2016Publication date: August 4, 2016Applicant: Halliburton Energy Services, Inc.Inventors: Dilip Chatterjee, Jody Pham, Shanghua Wu, Yuming Xie, Christopher E. Coker
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Patent number: 9273243Abstract: Methods are described to make strong, tough, and/or lightweight glass-ceramic composites having a crystalline phase and an amorphous phase generated by viscous reaction sintering of a complex mixture of oxides and other materials. The present invention further relates to strong, tough, and lightweight glass-ceramic composites that can be used as proppants and for other uses.Type: GrantFiled: March 18, 2013Date of Patent: March 1, 2016Assignee: Halliburton Energy Services, Inc.Inventors: Dilip Chatterjee, Jody Pham, Shanghua Wu, Yuming Xie, Christopher E. Coker
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Publication number: 20140249058Abstract: The present invention relates to lightweight high strength microsphere containing ceramic particles having controlled microsphere placement and/or size and microsphere morphology, which produces an improved balance of specific gravity and crush strength such that they can be used in applications such as proppants to prop open subterranean formation fractions. Proppant formulations are further disclosed which use one or more microsphere containing ceramic particles of the present invention. Methods to prop open subterranean formation fractions are further disclosed. In addition, other uses for the microsphere containing ceramic particles of the present invention are further disclosed, as well as methods of making the microsphere containing ceramic particles.Type: ApplicationFiled: April 15, 2014Publication date: September 4, 2014Applicant: Oxane Materials, Inc.Inventors: Shanghua Wu, Yuming Xie, Christopher E. Coker, Dilip Chatterjee
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Patent number: 8728991Abstract: The present invention relates to lightweight high strength microsphere containing ceramic particles having controlled microsphere placement and/or size and microsphere morphology, which produces an improved balance of specific gravity and crush strength such that they can be used in applications such as proppants to prop open subterranean formation fractions. Proppant formulations are further disclosed which use one or more microsphere containing ceramic particles of the present invention. Methods to prop open subterranean formation fractions are further disclosed. In addition, other uses for the microsphere containing ceramic particles of the present invention are further disclosed, as well as methods of making the microsphere containing ceramic particles.Type: GrantFiled: December 23, 2010Date of Patent: May 20, 2014Assignee: Oxane Materials, Inc.Inventors: Shanghua Wu, Yuming Xie, Christopher E. Coker, Dilip Chatterjee
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Patent number: 8178476Abstract: The present invention relates to glass-ceramic proppants which can be used to prop open subterranean formation fractions, as well as other uses. Proppant formulations are further disclosed which use one or more proppants of the present invention. Methods to prop open subterranean formation fractions are further disclosed. In addition, other uses for the proppants of the present invention are further disclosed, as well as methods of making the glass-ceramic proppants.Type: GrantFiled: December 14, 2010Date of Patent: May 15, 2012Assignee: Oxane Materials, Inc.Inventors: Yuming Xie, Dilip Chatterjee, Christopher E. Coker, Christopher Y. Fang
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Publication number: 20110160104Abstract: The present invention relates to lightweight high strength microsphere containing ceramic particles having controlled microsphere placement and/or size and microsphere morphology, which produces an improved balance of specific gravity and crush strength such that they can be used in applications such as proppants to prop open subterranean formation fractions. Proppant formulations are further disclosed which use one or more microsphere containing ceramic particles of the present invention. Methods to prop open subterranean formation fractions are further disclosed. In addition, other uses for the microsphere containing ceramic particles of the present invention are further disclosed, as well as methods of making the microsphere containing ceramic particles.Type: ApplicationFiled: December 23, 2010Publication date: June 30, 2011Applicant: OXANE MATERIALS, INC.Inventors: Shanghua Wu, Yuming Xie, Christopher E. Coker, Dilip Chatterjee
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Publication number: 20110146985Abstract: The present invention relates to glass-ceramic proppants which can be used to prop open subterranean formation fractions, as well as other uses. Proppant formulations are further disclosed which use one or more proppants of the present invention. Methods to prop open subterranean formation fractions are further disclosed. In addition, other uses for the proppants of the present invention are further disclosed, as well as methods of making the glass-ceramic proppants.Type: ApplicationFiled: December 14, 2010Publication date: June 23, 2011Applicant: OXANE MATERIALS, INC.Inventors: Yuming Xie, Dilip Chatterjee, Christopher E. Coker, Christopher Y. Fang
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Publication number: 20070077481Abstract: A method and resulting device for metallic structures including interconnects and sealed frames for solid oxide fuel cells, particularly those with multi-cell electrolyte sheets, includes providing a high-temperature aluminum-containing surface-alumina-forming steel, forming an interconnect structure from the steel, removing any alumina layer from a surface portion of the interconnect where an electrical contact is to be formed, providing a structure having a surface portion with which electrical contact is to be made by the surface portion of the interconnect, and brazing the surface portion of the interconnect to the surface portion of the structure, and sealing fuel cell frames by brazing.Type: ApplicationFiled: December 15, 2005Publication date: April 5, 2007Inventors: Dilip Chatterjee, Jeffrey Cortright, Pamela Maurey, Samir Biswas
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Publication number: 20050274145Abstract: In one aspect, a method is provided for molding from glass complex optical components such as lenses, microlens, arrays of microlenses, and gratings or surface-relief diffusers having fine or hyperfine microstructures suitable for optical or electro-optical applications. In another aspect, mold masters or patterns, which define the profile of the optical components, made on metal alloys, particularly titanium or nickel alloys, or refractory compositions, with or without a non-reactive coating are provided. Given that molding optical components from oxide glasses has numerous drawbacks, it has been discovered in accordance with the invention that non-oxide glasses substantially eliminates these drawbacks. The non-oxide glasses, such as chalcogenide, chalcohalide, and halide glasses, may be used in the mold either in bulk, planar, or power forms. In the mold, the glass is heated to about 10-110° C., preferably about 50° C.Type: ApplicationFiled: June 16, 2005Publication date: December 15, 2005Inventors: Bruce Aitken, Dilip Chatterjee, Daniel Raguin
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Patent number: 6803011Abstract: A method of making a feedstock for injection molding, including the steps of: mixing at a temperature of at least 100° C. polymeric materials having a thermal conductivity in the range of 0.001 to 0.01 cal/cm-sec-° C. wherein the polymeric materials are selected from the group consisting of polyethylene, polystyrene, polyester, and polycarbonate or combinations thereof, and one or more materials selected from the group consisting of ceramics, ceramic composites, metals and metal alloys in a blended relationship to form a viscous phase mixture, the materials in the viscous phase mixture being selected so that when in a solid phase it has a density greater than 4 grams/cc and a thermal conductivity greater than 0.101 cal/cm-sec-° C. and; cooling the blended viscous phase mixture to form the feedstock.Type: GrantFiled: January 26, 2001Date of Patent: October 12, 2004Assignee: Eastman Kodak CompanyInventors: Syamal K. Ghosh, Dilip Chatterjee, Donn B. Carlton
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Publication number: 20020145223Abstract: A method of making a feedstock for injection molding, including the steps of: mixing at a temperature of at least 100° C. polymeric materials having a thermal conductivity in the range of 0.001 to 0.01 cal/cm-sec-° C. wherein the polymeric materials are selected from the group consisting of polyethylene, polystyrene, polyester, and polycarbonate or combinations thereof, and one or more materials selected from the group consisting of ceramics, ceramic composites, metals and metal alloys in a blended relationship to form a viscous phase mixture, the materials in the viscous phase mixture being selected so that when in a solid phase it has a density greater than 4 grams/cc and a thermal conductivity greater than 0.101 cal/cm-sec-° C. and; cooling the blended viscous phase mixture to form the feedstock.Type: ApplicationFiled: January 26, 2001Publication date: October 10, 2002Applicant: Eastman Kodak CompanyInventors: Syamal K. Ghosh, Dilip Chatterjee, Donn B. Carlton