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A Device for Harvesting Mechanical Energy Through a Piezoelectrochemical Effect

Princeton Docket # 15-3135-1Researchers in the Department of Mechanical and Aerospace Engineering at Princeton University have developed a piezoelectrochemical device which uses mechanical stress to produce a voltage/current.Mechanical energy harvesting is an increasingly important method of providing power to distributed sensor networks where physical...

Published: 2/25/2025 | Inventor(s): Craig Arnold, John Cannarella

Keywords(s): battery, energy

Category(s): Mechanical/Electrical Engineering

Metal@Polymer Nanoparticles by Simultaneous Precipitation and Reduction

Metal@Polymer Nanoparticles by Simultaneous Precipitation and Reduction Princeton Docket #14-3014 Researchers in the Department of Chemical and Biological Engineering at Princeton University have developed a simple one-step synergistic preparation of metal nanoparticles within spherical polymer nanoparticles through Flash NanoPrecipitation(FNP)....

Published: 4/15/2025 | Inventor(s): Rodney Priestley, Robert Prud'homme, Rui Liu, Chris Sosa

Keywords(s): catalyst, Chemistry, drug delivery, energy, Imaging, nanotechnology

Category(s): Chemistry

Stress-Based State of Health and Charge Measurement for Intercalation Batteries

Stress-Based State of Health and Charge Measurement for Intercalation BatteriesPrinceton Docket # 12-2792The determination of a battery’s state of charge (SOC) and state of health (SOH) are important for the power management system that relies on batteries as a power source, e.g., mobile phones, laptops, electric vehicles, grid level storage,...

Published: 4/2/2025 | Inventor(s): Craig Arnold, John Cannarella

Keywords(s): battery, computers/software, energy, medical device, solar cell

Category(s): Medical Devices/Diagnostics, Computer Science and Information Technology

A Framework for CO2 Capture, Utilization and Sequestration (CCUS) Supply Chain Network Optimization

A Novel Tool for CO2 Capture, Utilization and Sequestration (CCUS) Optimization Docket # 14-3004 Stationary CO2 sources, including coal and natural gas power plants, iron and steel mills, and agricultural production, emit about 3 billion tons CO2 each year in the U.S. alone, which is released into the atmosphere where it contributes to global climate...

Published: 3/30/2022 | Inventor(s): Christodoulos Floudas (DECEASED) See Fotini P. Baba, M. M. Faruque Hasan, Fani Boukouvala, Eric First

Keywords(s): computers/software, earth science, energy, gas sensing, natural gas, process optimization

Category(s): Computer Science and Information Technology

An Efficient, Green Process for Cyanide Decontamination in Water

An Efficient, Green Process for Cyanide Decontamination in Water Princeton Docket # 14-2955 This innovation is an improvement to a previously patent pending process for the catalytic generation of chlorine dioxide, Princeton docket # 11-2630/2714, US Patent Publication 2013-0209573, “An Efficient, Catalytic and Scalable Method to Produce Chlorine...

Published: 4/24/2025 | Inventor(s): John (Jay) Groves, Thomas Umile, Christina Chang

Keywords(s): catalyst, Chemistry, energy, green tech, wastewater management, water

Category(s): Chemistry

A new energy efficient method for the removal of nitrogen for wastewater management and engineered wetlands

A new energy efficient method for the removal of nitrogen for wastewater management and engineered wetlands Princeton Docket # 13-2918 Researchers in the Department of Civil and Environmental Engineering, Princeton University, have identified a new microorganism that is responsible for the Feammox process. Virtually all wastewater treatment...

Published: 4/2/2025 | Inventor(s): Peter Jaffe, Shan Huang

Keywords(s): energy, wastewater management, water

Category(s): Biotechnology/Pharmaceuticals

A Measurement Process for the Determination of the Mixture Averaged Molecular Weight of Complex Mixtures

A Novel Measurement Process for the Determination of the Mixture Averaged Molecular Weight of Complex Mixtures Princeton Docket # 12-2788-1 Researchers at Princeton University have developed a new process to determine the mixture averaged (or apparent) molecular weight of complex mixtures, specifically for liquid fuels, including automotive fuels,...

Published: 6/17/2025 | Inventor(s): Frederick Dryer, Sang Hee Won, Stephen Dooley

Keywords(s): Chemistry, earth science, energy, green tech

Category(s): Chemistry

Feedback Control of Azimuthal Oscillations in Hall Thrusters: Enhanced Thruster Efficiency and Performance

Princeton Docket # 12-2808 Researchers at Princeton Plasma Physics Laboratory have developed a novel method to achieve feedback control of low-frequency azimuthal waves (rotating spoke oscillation) in the ExB discharge of a Hall thruster. This technology will enhance thruster efficiency and performance. The Hall thruster is a plasma-based propulsion...

Published: 3/30/2022 | Inventor(s): Martin Griswold, C. Leland Ellison, Yevgeny Raitses, Nathaniel Fisch

Keywords(s): energy

Category(s): Mechanical/Electrical Engineering