Patents by Inventor Swatantra Pratap Singh
Swatantra Pratap Singh 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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Publication number: 20250145466Abstract: Methods for stabilizing laser-induced graphene (LIG) through composite formation and compositions thereof. Using infiltration methods and/or lamination methods, LIG composites (LIGCs) with physical properties can be engineered on various substrate materials. The physical properties include surface properties, such as superhydrophobicity and antibiofouling; the LIGCs are also useful in antibacterial applications, Joule-heating applications, and as resistive memory device substrates. Further, methods for fabricating and using LIG for flexible and embeddable gas sensors.Type: ApplicationFiled: January 10, 2025Publication date: May 8, 2025Applicants: B.G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD., AT BEN-GURION UNIVERSITY, WILLIAM MARSH RICE UNIVERSITYInventors: James Mitchell TOUR, Duy X. LUONG, Kaichun YANG, Christopher John ARNUSCH, Swatantra Pratap SINGH, Amit Kumar THAKUR, Michael G. STANFORD, John T. LI, Steven E. PRESUTTI
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Patent number: 12227420Abstract: Gas sensors having laser-induced graphene (LIG) and/or LIG composites, and methods of making and using gas sensors having LIG and/or LIG composites.Type: GrantFiled: December 30, 2019Date of Patent: February 18, 2025Assignees: B.G. NEGEV TECHNOLOGIES AND APPLICATION LTD., AT BEN-GURION U SUNIVERSITY STATE OR COUNTRY), WILLIAM MARSH RICE UNIVERSITYInventors: James Mitchell Tour, Duy X. Luong, Kaichun Yang, Christopher John Arnusch, Swatantra Pratap Singh, Amit Kumar Thakur, Michael G. Stanford, John T. Li, Steven E. Presutti
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Patent number: 12012336Abstract: Methods that expand the properties of laser-induced graphene (LIG) and the resulting LIG having the expanded properties. Methods of fabricating laser-induced graphene from materials, which range from natural, renewable precursors (such as cloth or paper) to high performance polymers (like Kevlar). With multiple lasing, however, highly conductive PEI-based LIG could be obtained using both multiple pass and defocus methods. The resulting laser-induced graphene can be used, inter alia, in electronic devices, as antifouling surfaces, in water treatment technology, in membranes, and in electronics on paper and food Such methods include fabrication of LIG in controlled atmospheres, such that, for example, superhydrophobic and superhydrophilic LIG surfaces can be obtained. Such methods further include fabricating laser-induced graphene by multiple lasing of carbon precursors. Such methods further include direct 3D printing of graphene materials from carbon precurors.Type: GrantFiled: November 1, 2021Date of Patent: June 18, 2024Assignees: William Marsh Rice University, B.G. NEGEV TECHNOLOGIES AND APPLICATIONS, LTD. AT BEN-GURION UNIVERSITYInventors: James M. Tour, Yieu Chyan, Christopher John Arnusch, Swatantra Pratap Singh, Yilun Li, Duy X. Luong, Carter Kittrell, Ruquan Ye, Jordan Miller, Ian Kinstlinger, Savannah Cofer
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Publication number: 20220267153Abstract: Methods that expand the properties of laser-induced graphene (LIG) and the resulting LIG having the expanded properties. Methods of fabricating laser-induced graphene from materials, which range from natural, renewable precursors (such as cloth or paper) to high performance polymers (like Kevlar). With multiple lasing, however, highly conductive PEI-based LIG could be obtained using both multiple pass and defocus methods. The resulting laser-induced graphene can be used, inter alia, in electronic devices, as antifouling surfaces, in water treatment technology, in membranes, and in electronics on paper and food Such methods include fabrication of LIG in controlled atmospheres, such that, for example, superhydrophobic and superhydrophilic LIG surfaces can be obtained. Such methods further include fabricating laser-induced graphene by multiple lasing of carbon precursors. Such methods further include direct 3D printing of graphene materials from carbon precurors.Type: ApplicationFiled: November 1, 2021Publication date: August 25, 2022Applicants: WILLIAM MARSH RICE UNIVERSITY, B.G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD. AT BEN-GURION UNIVERSITYInventors: James M. Tour, Yieu Chyan, Christopher John Arnusch, Swatantra Pratap Singh, Yilun Li, Duy X. Luong, Carter Kittrell, Ruquan Ye, Jordan Miller, Ian Kinstlinger, Savannah Cofer
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Publication number: 20220055904Abstract: Resistive memory devices having laser-induced graphene (LIG) composites, and methods of making resistive memory devices having LIG composites.Type: ApplicationFiled: December 30, 2019Publication date: February 24, 2022Applicants: B.G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD., AT BEN-GURION UNIVERSITY, WILLIAM MARSH RICE UNIVERSITYInventors: James Mitchell Tour, Duy X. Luong, Kaichun Yang, Christopher John Arnusch, Swatantra Pratap Singh, Amit Kumar Thakur, Michael G. Stanford, John T. Li, Steven E. Presutti
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Patent number: 11161744Abstract: Methods that expand the properties of laser-induced graphene (LIG) and the resulting LIG having the expanded properties. Methods of fabricating laser-induced graphene from materials, which range from natural, renewable precursors (such as cloth or paper) to high performance polymers (like Kevlar). With multiple lasing, however, highly conductive PEI-based LIG could be obtained using both multiple pass and defocus methods. The resulting laser-induced graphene can be used, inter alia, in electronic devices, as antifouling surfaces, in water treatment technology, in membranes, and in electronics on paper and food Such methods include fabrication of LIG in controlled atmospheres, such that, for example, superhydrophobic and superhydrophilic LIG surfaces can be obtained. Such methods further include fabricating laser-induced graphene by multiple lasing of carbon precursors. Such methods further include direct 3D printing of graphene materials from carbon precursors.Type: GrantFiled: November 6, 2017Date of Patent: November 2, 2021Assignees: William Marsh Rice University, B.G. Negev Technologies and Applications, Ltd., at Ben-Gurion UniversityInventors: James M. Tour, Yieu Chyan, Christopher John Arnusch, Swatantra Pratap Singh, Yilun Li, Duy X. Luong, Carter Kittrell, Ruquan Ye, Jordan Miller, Ian Kinstlinger, Savannah Cofer
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Patent number: 11027240Abstract: Disclosed herein methods for combating biofouling in a liquid, e.g. an aqueous medium by providing a surface coated with at least one laser-induced graphene (LIG) layer in said liquid medium. Particularly disclosed herein method and devices for treating water comprising passing a water stream through a membrane module equipped with at least one spacer coated with at least one layer of LIG, and optionally by applying an electric potential to the at least one LIG layer to achieve a bactericidal effect in the water stream. Specifically, disclosed herein a polymeric mesh suitable for use as a spacer in a membrane module in water treatment application, said mesh being at least partially coated with LIG.Type: GrantFiled: May 16, 2017Date of Patent: June 8, 2021Assignees: B.G. Negev Technologies and Applications Ltd., at Ben-Gurion University, William Marsh Rice UniversityInventors: Christopher John Arnusch, Swatantra Pratap Singh, Franklin Sargunaraj, Yoram Oren, James Mitchell Tour, Yilun Li
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Publication number: 20190330064Abstract: Methods that expand the properties of laser-induced graphene (LIG) and the resulting LIG having the expanded properties. Methods of fabricating laser-induced graphene from materials, which range from natural, renewable precursors (such as cloth or paper) to high performance polymers (like Kevlar). With multiple lasing, however, highly conductive PEI-based LIG could be obtained using both multiple pass and defocus methods. The resulting laser-induced graphene can be used, inter alia, in electronic devices, as antifouling surfaces, in water treatment technology, in membranes, and in electronics on paper and food Such methods include fabrication of LIG in controlled atmospheres, such that, for example, superhydrophobic and superhydrophilic LIG surfaces can be obtained. Such methods further include fabricating laser-induced graphene by multiple lasing of carbon precursors. Such methods further include direct 3D printing of graphene materials from carbon precurors.Type: ApplicationFiled: November 6, 2017Publication date: October 31, 2019Applicants: WILLIAM MARSH RICE UNIVERSITY, BEN-GURION UNIVERSITYInventors: James M. TOUR, Yieu CHYAN, Christopher John ARNUSCH, Swatantra Pratap SINGH, Yilun LI, Duy X. LUONG, Carter KITTRELL, Ruquan YE, Jordan MILLER, Ian KINSTLINGER, Savannah COFER
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Publication number: 20190143275Abstract: Disclosed herein methods for combating biofouling in a liquid, e.g. an aqueous medium by providing a surface coated with at least one laser-induced graphene (LIG) layer in said liquid medium. Particularly disclosed herein method and devices for treating water comprising passing a water stream through a membrane module equipped with at least one spacer coated with at least one layer of LIG, and optionally by applying an electric potential to the at least one LIG layer to achieve a bactericidal effect in the water stream. Specifically, disclosed herein a polymeric mesh suitable for use as a spacer in a membrane module in water treatment application, said mesh being at least partially coated with LIG.Type: ApplicationFiled: May 16, 2017Publication date: May 16, 2019Applicants: B.G. Negev Technologies and Applications Ltd., at Ben-Gurion University, William Marsh Rice UniversityInventors: Christopher John Arnusch, Swatantra Pratap Singh, Franklin Sargunaraj, Yoram Oren, James Mitchell Tour, Yilun Li