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).

  • Publication number: 20250145466
    Abstract: 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: Application
    Filed: January 10, 2025
    Publication date: May 8, 2025
    Applicants: B.G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD., AT BEN-GURION UNIVERSITY, WILLIAM MARSH RICE UNIVERSITY
    Inventors: 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
  • Patent number: 12227420
    Abstract: 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: Grant
    Filed: December 30, 2019
    Date of Patent: February 18, 2025
    Assignees: B.G. NEGEV TECHNOLOGIES AND APPLICATION LTD., AT BEN-GURION U SUNIVERSITY STATE OR COUNTRY), WILLIAM MARSH RICE UNIVERSITY
    Inventors: 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
  • Patent number: 12012336
    Abstract: 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: Grant
    Filed: November 1, 2021
    Date of Patent: June 18, 2024
    Assignees: William Marsh Rice University, B.G. NEGEV TECHNOLOGIES AND APPLICATIONS, LTD. AT BEN-GURION UNIVERSITY
    Inventors: 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
  • Publication number: 20220267153
    Abstract: 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: Application
    Filed: November 1, 2021
    Publication date: August 25, 2022
    Applicants: WILLIAM MARSH RICE UNIVERSITY, B.G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD. AT BEN-GURION UNIVERSITY
    Inventors: 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
  • Publication number: 20220055904
    Abstract: Resistive memory devices having laser-induced graphene (LIG) composites, and methods of making resistive memory devices having LIG composites.
    Type: Application
    Filed: December 30, 2019
    Publication date: February 24, 2022
    Applicants: B.G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD., AT BEN-GURION UNIVERSITY, WILLIAM MARSH RICE UNIVERSITY
    Inventors: 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
  • Patent number: 11161744
    Abstract: 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: Grant
    Filed: November 6, 2017
    Date of Patent: November 2, 2021
    Assignees: William Marsh Rice University, B.G. Negev Technologies and Applications, Ltd., at Ben-Gurion University
    Inventors: 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
  • Patent number: 11027240
    Abstract: 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: Grant
    Filed: May 16, 2017
    Date of Patent: June 8, 2021
    Assignees: B.G. Negev Technologies and Applications Ltd., at Ben-Gurion University, William Marsh Rice University
    Inventors: Christopher John Arnusch, Swatantra Pratap Singh, Franklin Sargunaraj, Yoram Oren, James Mitchell Tour, Yilun Li
  • Publication number: 20190330064
    Abstract: 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: Application
    Filed: November 6, 2017
    Publication date: October 31, 2019
    Applicants: WILLIAM MARSH RICE UNIVERSITY, BEN-GURION UNIVERSITY
    Inventors: 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
  • Publication number: 20190143275
    Abstract: 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: Application
    Filed: May 16, 2017
    Publication date: May 16, 2019
    Applicants: B.G. Negev Technologies and Applications Ltd., at Ben-Gurion University, William Marsh Rice University
    Inventors: Christopher John Arnusch, Swatantra Pratap Singh, Franklin Sargunaraj, Yoram Oren, James Mitchell Tour, Yilun Li