Patents by Inventor Tsung-Chan Tsai
Tsung-Chan Tsai 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: 11825841Abstract: Exemplary methods of and system for generating an antimicrobial wipe to clean and disinfect a surface contaminated with bacteria, viruses, spores, fungi, or combinations thereof. In some embodiments, the method includes applying non-thermal plasma to a moistened wipe to activate a liquid in the wipe. In some embodiments, the method includes applying non-thermal plasma to a liquid and then applying the activated liquid to a wipe. In one embodiment of a system for generating an antimicrobial wipe the system includes a housing having an opening; a supply of wipes disposed within the housing; a non-thermal plasma generator disposed within the housing; a power supply electrically coupled to the non-thermal plasma generator; and a feed system disposed within the housing, wherein the feed system moves one or more wipes from the supply of wipes past the plasma generator and out of the opening. As the feed system moves the wipes past the plasma generator, the plasma generator applies non-thermal plasma to the wipes.Type: GrantFiled: January 25, 2021Date of Patent: November 28, 2023Assignee: GOJO Industries, Inc.Inventors: Tsung-Chan Tsai, Jeffrey S. Louis, Daphne Pappas Antonakas, Sameer Kalghatgi, Robert L. Gray
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Patent number: 11724078Abstract: Exemplary systems and methods associated with trans-tissue substance delivery using non-thermal plasma to porate skin or tissues using contoured dielectrics/electrodes and grounding techniques. In some embodiments, a substance delivery system may be incorporated into the plasma generating device for automatically controlled skin treatments. In other embodiments, a skin treatment patch may include the electrode and the treatment substance.Type: GrantFiled: September 8, 2020Date of Patent: August 15, 2023Assignee: GOJO Industries, Inc.Inventors: Sameer Kalghatgi, Abhishek Juluri, Jeffrey S. Louis, Tsung-Chan Tsai
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Patent number: 11717585Abstract: A cleaning, sanitizing or disinfecting scrubbing device includes a body, a non-thermal plasma generator and damp wipe. Generated plasma activates fluid in the wipe. The device may include spacer posts between the body and wipe and a conductive mesh between the body and wipe or embedded in the wipe. Another embodiment includes a reservoir for holding a water-based fluid, a fluid delivery element connected to the reservoir by a tube through which the fluid can flow and a non-thermal plasma generator. The non-thermal plasma generator activates the fluid. In one embodiment the scrubbing device is a mitt. In another embodiment the scrubbing device is a glove.Type: GrantFiled: September 3, 2021Date of Patent: August 8, 2023Assignee: GOJO Industries, Inc.Inventors: Jeffrey S. Louis, Tsung-Chan Tsai, Daphne Pappas Antonakas, David Petrak, Sameer Kalghatgi, Robert L. Gray
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Publication number: 20210393827Abstract: A cleaning, sanitizing or disinfecting scrubbing device includes a body, a non-thermal plasma generator and damp wipe. Generated plasma activates fluid in the wipe. The device may include spacer posts between the body and wipe and a conductive mesh between the body and wipe or embedded in the wipe. Another embodiment includes a reservoir for holding a water-based fluid, a fluid delivery element connected to the reservoir by a tube through which the fluid can flow and a non-thermal plasma generator. The non-thermal plasma generator activates the fluid. In one embodiment the scrubbing device is a mitt. In another embodiment the scrubbing device is a glove.Type: ApplicationFiled: September 3, 2021Publication date: December 23, 2021Inventors: Jeffrey S. Louis, Tsung-Chan Tsai, Daphne Pappas Antonakas, David Petrak, Sameer Kalghatgi, Robert L. Gray
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Patent number: 11123446Abstract: A cleaning, sanitizing or disinfecting scrubbing device includes a body, a non-thermal plasma generator and damp wipe. Generated plasma activates fluid in the wipe. The device may include spacer posts between the body and wipe and a conductive mesh between the body and wipe or embedded in the wipe. Another embodiment includes a reservoir for holding a water-based fluid, a fluid delivery element connected to the reservoir by a tube through which the fluid can flow and a non-thermal plasma geneator. The non-thermal plasma generator activates the fluid. In one embodiment the scrubbing device is a mitt. In another embodiment the scrubbing device is a glove.Type: GrantFiled: July 27, 2016Date of Patent: September 21, 2021Assignee: GOJO Industries, Inc.Inventors: Jeffrey S. Louis, Tsung-Chan Tsai, Daphne Pappas Antonakas, David Petrak, Sameer Kalghatgi, Robert L. Gray
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Publication number: 20210137106Abstract: Exemplary methods of and system for generating an antimicrobial wipe to clean and disinfect a surface contaminated with bacteria, viruses, spores, fungi, or combinations thereof. In some embodiments, the method includes applying non-thermal plasma to a moistened wipe to activate a liquid in the wipe. In some embodiments, the method includes applying non-thermal plasma to a liquid and then applying the activated liquid to a wipe. In one embodiment of a system for generating an antimicrobial wipe the system includes a housing having an opening; a supply of wipes disposed within the housing; a non-thermal plasma generator disposed within the housing; a power supply electrically coupled to the non-thermal plasma generator; and a feed system disposed within the housing, wherein the feed system moves one or more wipes from the supply of wipes past the plasma generator and out of the opening. As the feed system moves the wipes past the plasma generator, the plasma generator applies non-thermal plasma to the wipes.Type: ApplicationFiled: January 25, 2021Publication date: May 13, 2021Inventors: Tsung-Chan Tsai, Jeffrey S. Louis, Daphne Pappas Antonakas, Sameer Kalghatgi, Robert L. Gray
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Patent number: 10897894Abstract: Exemplary methods of and system for generating an antimicrobial wipe to clean and disinfect a surface contaminated with bacteria, viruses, spores, fungi, or combinations thereof. In some embodiments, the method includes applying non-thermal plasma to a moistened wipe to activate a liquid in the wipe. In some embodiments, the method includes applying non-thermal plasma to a liquid and then applying the activated liquid to a wipe. In one embodiment of a system for generating an antimicrobial wipe the system includes a housing having an opening; a supply of wipes disposed within the housing; a non-thermal plasma generator disposed within the housing; a power supply electrically coupled to the non-thermal plasma generator; and a feed system disposed within the housing, wherein the feed system moves one or more wipes from the supply of wipes past the plasma generator and out of the opening. As the feed system moves the wipes past the plasma generator, the plasma generator applies non-thermal plasma to the wipes.Type: GrantFiled: August 30, 2016Date of Patent: January 26, 2021Assignee: GOJO Industries, Inc.Inventors: Tsung-Chan Tsai, Jeffrey S. Louis, Daphne Pappas Antonakas, Sameer Kalghatgi, Robert L. Gray
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Publication number: 20200406016Abstract: Exemplary systems and methods associated with trans-tissue substance delivery using non-thermal plasma to porate skin or tissues using contoured dielectrics/electrodes and grounding techniques. In some embodiments, a substance delivery system may be incorporated into the plasma generating device for automatically controlled skin treatments. In other embodiments, a skin treatment patch may include the electrode and the treatment substance.Type: ApplicationFiled: September 8, 2020Publication date: December 31, 2020Inventors: Sameer Kalghatgi, Abhishek Juluri, Jeffrey S. Louis, Tsung-Chan Tsai
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Patent number: 10765850Abstract: Exemplary systems and methods associated with trans-tissue substance delivery using non-thermal plasma to porate skin or tissues using contoured dielectrics/electrodes and grounding techniques. In some embodiments, a substance delivery system may be incorporated into the plasma generating device for automatically controlled skin treatments. In other embodiments, a skin treatment patch may include the electrode and the treatment substance.Type: GrantFiled: May 11, 2017Date of Patent: September 8, 2020Assignee: GOJO INDUSTRIES, INC.Inventors: Sameer Kalghatgi, Abhishek Juluri, Jeffrey S. Louis, Tsung-Chan Tsai
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Publication number: 20180242577Abstract: Exemplary methods of and system for generating an antimicrobial wipe to clean and disinfect a surface contaminated with bacteria, viruses, spores, fungi, or combinations thereof. In some embodiments, the method includes applying non-thermal plasma to a moistened wipe to activate a liquid in the wipe. In some embodiments, the method includes applying non-thermal plasma to a liquid and then applying the activated liquid to a wipe. In one embodiment of a system for generating an antimicrobial wipe the system includes a housing having an opening; a supply of wipes disposed within the housing; a non-thermal plasma generator disposed within the housing; a power supply electrically coupled to the non-thermal plasma generator; and a feed system disposed within the housing, wherein the feed system moves one or more wipes from the supply of wipes past the plasma generator and out of the opening. As the feed system moves the wipes past the plasma generator, the plasma generator applies non-thermal plasma to the wipes.Type: ApplicationFiled: August 30, 2016Publication date: August 30, 2018Inventors: Tsung-Chan Tsai, Jeffrey S. Louis, Daphne Pappas Antonakas, Sameer Kalghatgi, Robert L. Gray
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Publication number: 20180214586Abstract: A cleaning, sanitizing or disinfecting scrubbing device includes a body, a non-thermal plasma generator and damp wipe. Generated plasma activates fluid in the wipe. The device may include spacer posts between the body and wipe and a conductive mesh between the body and wipe or embedded in the wipe. Another embodiment includes a reservoir for holding a water- based fluid, a fluid delivery element connected to the reservoir by a tube through which the fluid can flow and a non-thermal plasma geneator. The non-thermal plasma generator activates the fluid. In one embodiment the scrubbing device is a mitt. In another embodiment the scrubbing device is a glove.Type: ApplicationFiled: July 27, 2016Publication date: August 2, 2018Inventors: Jeffrey S. Louis, Tsung-Chan Tsai, Daphne Pappas Antonakas, David Petrak, Sameer Kalghatgi, Robert L. Gray
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Publication number: 20170326347Abstract: Exemplary systems and methods associated with trans-tissue substance delivery using non-thermal plasma to porate skin or tissues using contoured dielectrics/electrodes and grounding techniques. In some embodiments, a substance delivery system may be incorporated into the plasma generating device for automatically controlled skin treatments. In other embodiments, a skin treatment patch may include the electrode and the treatment substance.Type: ApplicationFiled: May 11, 2017Publication date: November 16, 2017Inventors: Sameer Kalghatgi, Abhishek Juluri, Jeffrey S. Louis, Tsung-Chan Tsai
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Publication number: 20170246440Abstract: Apparatuses and methods for delivering bioactive substances or cosmetic substances using plasmaporation and microneedles are provided. The delivery of the substances includes topical, intracellular, intercellular, and transdermal delivery to the subject.Type: ApplicationFiled: February 27, 2017Publication date: August 31, 2017Inventors: Sameer Kalghatgi, Abhishek Juluri, Tsung-Chan Tsai, Robert L. Gray
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Publication number: 20170246468Abstract: Exemplary systems and methods associated with skin treatments using non-thermal plasma to porate skin or tissues using conductive elements to direct an electric field through targeted regions of the skin or tissue. Various configurations of conductive elements and associated circuitry may be used to tune and control the electric field.Type: ApplicationFiled: February 24, 2017Publication date: August 31, 2017Inventors: Sameer Kalghatgi, Tsung-Chan Tsai, Jeffrey S. Louis, Robert L. Gray
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Patent number: 9662412Abstract: Exemplary apparatuses and methods of killing or deactivating bacteria are disclosed herein. An exemplary apparatus for killing or deactivating bacteria includes a plasma vapor chamber. The plasma vapor chamber has a vapor inlet for allowing a vapor into the chamber, a high voltage electrode, one or more grounding electrodes. The one or more grounding electrodes at least partially surrounding the plasma vapor chamber. The plasma vapor chamber includes an outlet for allowing fluid to flow out of the chamber. When the chamber is filled with vapor for a period of time sufficient to saturate the chamber with vapor, the high voltage electrode is energized to generate plasma throughout the chamber.Type: GrantFiled: February 11, 2016Date of Patent: May 30, 2017Assignee: EP Technologies LLCInventors: James Ferrell, Erinn R. Bogovich, Robert L. Gray, Daphne Pappas Antonakas, Tsung-Chan Tsai, Sameer Kalghatgi
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Publication number: 20170142962Abstract: Exemplary methods and systems for killing or deactivating spores include applying a fluid containing an additive to a surface containing a spore; and applying direct or indirect plasma to the surface for a period of time.Type: ApplicationFiled: November 22, 2016Publication date: May 25, 2017Inventors: Tsung-Chan Tsai, Sameer Kalghatgi, James Ferrell, Shirley Zhu, Robert L. Gray
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Publication number: 20170128906Abstract: Exemplary embodiments of systems for generating large volumes of plasma activated liquids are disclosed herein. An exemplary system for creating a large volume of plasma-activated liquid includes a gas pump that moves a gas and liquid entrained in the gas, one or more plasma generators for generating plasma to activate at least one of the gas and the liquid entrained in the gas, a supply of liquid to be activated, a liquid aerator for creating an aerated liquid to be entrained in the gas, an activation chamber for activating the aerated liquid by contacting at least one of the aerated liquid or aerated liquid entrained in gas with plasma or plasma activated gas to form an activated liquid gas mixture. The exemplary system also includes a liquid gas separator positioned downstream of the activation chamber. The liquid gas separator separates at least a portion of the activated liquid gas mixture into an activated liquid and the gas.Type: ApplicationFiled: November 8, 2016Publication date: May 11, 2017Inventors: Jeffrey S. Louis, Tsung-Chan Tsai
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Patent number: 9550007Abstract: Exemplary methods and systems for killing or deactivating spores include applying a fluid to a surface containing a spore; and applying direct or indirect plasma to the surface for a period of time. In some embodiments, the fluid includes water. In some embodiments, the spore is Clostridium difficile and in some is Bacillus Anthracis. In some embodiments, the fluid is in the form of a vapor, a fog, a spray, a mist or an aerosol, which may be activated prior to or after applying the fluid to a surface. In some embodiments, peroxynitrite is created in the fluid during the method. Another exemplary embodiment of killing or deactivating a spore includes treating spores with direct plasma or indirect plasma for a period of time and applying an antimicrobial to the spores. In some embodiments, the antimicrobial is an alcohol, a bleach or an alcohol-based sanitizer.Type: GrantFiled: March 17, 2014Date of Patent: January 24, 2017Assignee: EP Technologies LLCInventors: Tsung-Chan Tsai, Sameer Kalghatgi, Daphne Pappas Antonakas, Robert L. Gray
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Publication number: 20160271874Abstract: Systems and methods for printing a three-dimensional object include a 3D printing device and a plasma applicator. In some embodiments the plasma applicator is rotatably connected to the 3D printing device and may apply plasma to a molten layer of 3D printing material immediately after the material is laid, or to a solidified layer immediately before the next layer is laid. In some embodiments a second plasma applicator is included for application of plasma both before and after each layer. In some embodiments plasma is applied to the final layer of a finished 3D printed object.Type: ApplicationFiled: March 21, 2016Publication date: September 22, 2016Inventors: Tsung-Chan Tsai, Jeffrey S. Louis, Sameer Kalghatgi, Daphne Pappas Antonakas, Robert L. Gray, Shirley Zhu, Kirill Gutsol, XinPei Lu
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Publication number: 20160228592Abstract: Exemplary apparatuses and methods of killing or deactivating bacteria are disclosed herein. An exemplary apparatus for killing or deactivating bacteria includes a plasma vapor chamber. The plasma vapor chamber has a vapor inlet for allowing a vapor into the chamber, a high voltage electrode, one or more grounding electrodes. The one or more grounding electrodes at least partially surrounding the plasma vapor chamber. The plasma vapor chamber includes an outlet for allowing fluid to flow out of the chamber. When the chamber is filled with vapor for a period of time sufficient to saturate the chamber with vapor, the high voltage electrode is energized to generate plasma throughout the chamber.Type: ApplicationFiled: February 11, 2016Publication date: August 11, 2016Inventors: James Ferrell, Erinn R. Bogovich, Robert L. Gray, Daphne Pappas Antonakas, Tsung-Chan Tsai, Sameer Kalghatgi