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Princeton Docket # 16-3187Researchers at Princeton Plasma Physics Laboratory, Princeton University have designed a self-aligning mirror mechanism for transmission line offset correction. The self-aligning mechanism automatically adjusts mirrors to couple radiation between two or more offset waveguides or optical fibers. It is currently used to direct...
Published: 2/10/2026
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Inventor(s): Michael Gomez, Cara Bagley, Benjamin Tobias, Ali Zolfaghari, Alexandros Gerakis, Mary Demetillo
Keywords(s):
Category(s): Medical Devices/Diagnostics
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Spheromak Gun for Inductive flux Injection
Princeton Docket # 22-3902
PPPL and a collaborator have proposed the formation of a high flux spheromak by an inductive flux injection coaxial gun. The basic approach of the scheme is based on a principle in which plasmas relax toward the minimum energy state during spheromak formation, independent of initial...
Published: 1/14/2026
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Inventor(s): Masaaki Yamada, Hiroshi Gota
Keywords(s): fusion
Category(s): Energy and CleanTech
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Non-Confidential Brief
Single-Torus-Liquid-Metal-Coil Fusion Device to Obtain All Stellarator and Tokamak Configurations
Princeton Docket # 24-4079-1
Researchers at the Princeton Plasma Physics Laboratory (PPPL) have proposed a method for the design of fusion devices (tokamaks and stellarators) that achieve magnetic confinement of plasmas with...
Published: 12/22/2025
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Inventor(s): Egemen Kolemen, Francisco Saenz Castro, Dario Panici, Richard Majeski
Keywords(s): fusion
Category(s): Plasma/Fusion
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Quench Protection of Superconducting Coils using Inductively Coupled Conductors
Princeton Docket # 24-4076-1
Inventors at PPPL have conceived an invention focused on the protection of high-temperature superconducting (HTS) electromagnets. The innovation hinges on an integrated design method that employs inductively coupled normal-conducting elements...
Published: 12/11/2025
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Inventor(s): Yuhu Zhai, Michael Zarnstorff (retired)
Keywords(s): fusion
Category(s): Plasma/Fusion, Mechanical/Electrical Engineering
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Non-Confidential Brief
Confocal Laser Induced Fluorescence Diagnostic With Annular Laser Beam for Large Focal Distances
Princeton Docket # 23-4006-1
Laser induced fluorescence (LIF) is routinely used for characterization of plasma sources or in gas dynamic applications. Conventional LIF techniques require access to studied volume from two sides:...
Published: 10/17/2025
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Inventor(s): Yevgeny Raitses, Ivan Romadanov
Keywords(s): microelectronics
Category(s): Mechanical/Electrical Engineering
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Non-Confidential Brief
Segmented Planar Stellarator Coils
Princeton Docket # 25-4189-1
Researchers at the Princeton Plasma Physics Laboratory propose a novel configuration of stellarator fusion reactor coils. Traditional stellarator coils incorporate a complex, non-planar design in order to magnetically confine the plasma in a specified equilibrium....
Published: 9/18/2025
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Inventor(s): Egemen Kolemen, Kian Orr, Dario Panici
Keywords(s): engineering, fusion, fusion - stellarators
Category(s): Plasma/Fusion
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Princeton Docket # 15-3094-1
Researchers in the Department of Engineering at Princeton Plasma Physics Laboratory, Princeton University, have designed an electrical detector for detecting liquid metal leaks.
Liquid metal has unique physical properties and many applications. For instance, liquid lithium is a candidate plasma facing component (PFC)...
Published: 7/24/2025
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Inventor(s): Jacob Schwartz, Michael Jaworski
Keywords(s): fusion
Category(s): Mechanical/Electrical Engineering
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Self-Disinfecting Plasma FabricPrinceton Docket # 20-3706Researchers at Princeton Plasma Physics Laboratory, Princeton University have designed a self-disinfecting plasma fabric (SPDF) comprised of a specially woven electrical discharge source where plasma is ignited within the textile. The plasma sterilizes the fabric from within and can also be used...
Published: 6/3/2025
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Inventor(s): Yevgeny Raitses, Sophia Gershman, Shurik Yatom, Philip Efthimion
Keywords(s): low-temperature plasma
Category(s): Mechanical/Electrical Engineering
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A Novel Objective for EUV Microscopy and EUV Lithography
Princeton Docket # 14-2950
Researchers at Princeton Plasma Physics Laboratory (PPPL) have proposed a novel device for extreme ultraviolet (EUV) spectroscopy, EUV microscopy, and EUV lithography at wavelengths below 100 nm. Princeton is seeking an industry partner to develop and commercialize...
Published: 4/29/2025
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Inventor(s): Manfred Bitter, Kenneth Hill, Philip Efthimion
Keywords(s): microelectronics
Category(s): Mechanical/Electrical Engineering, Computer Science and Information Technology
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Fueling Method for Small, Steady-State, Aneutronic FRC Fusion Reactors
Princeton Docket # 14-2962
Researchers at the Princeton Plasma Physics Laboratory at Princeton University have disclosed a method to efficiently supply controlled and accurately timed amounts of deuterium and the rare element, 3He, to the core of small field-reversed-configuration...
Published: 4/24/2025
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Inventor(s): Samuel Cohen, Daren Stotler, Michael Buttolph
Keywords(s): fusion
Category(s): Chemistry
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