Search

Results 1276–1300 of 1,895

PLC backplane analyzer for field forensics and intrusion detection

Patent • #US9032522B1. The various technologies presented herein relate to the determination of unexpected and/or malicious activity occurring between components communicatively coupled across a backplane. Control data, etc., can be intercepted at a backplane where the backplane facilitates communication between a controller and at least one device in an automation process. During...

Polarization-based coding/encryption using organic charge-transfer materials

Patent • #US11151345B2. A charge-transfer material enables patterning approach where the polarization angle in stand-alone films can be precisely defined at the single pixel level and reconfigured following initial alignment. This capability enables new routes for non-binary information storage, retrieval, and intrinsic encryption, and it suggests future technologies such as photonic chips...

Polarization-sensitive infrared image sensor including a plurality of optical fibers

Patent • #US8238026B1. A polarization-sensitive infrared image sensor (also termed a snapshot polarimeter) utilizing a 2-D array of polarizers to filter infrared light from a scene according to polarization, and a 2-D array of photodetectors (i.e. a focal plane array) to detect the filtered infrared light and generate polarization information which can...

Policy enabled information sharing system

Patent • #US8825611B1. A technique for dynamically sharing information includes executing a sharing policy indicating when to share a data object responsive to the occurrence of an event. The data object is created by formatting a data file to be shared with a receiving entity. The data object includes a file data...

Poly(phenylene)-based anion exchange membrane

Patent • #US7888397B1. A poly(phenylene) compound of copolymers that can be prepared with either random or multiblock structures where a first polymer has a repeat unit with a structure of four sequentially connected phenyl rings with a total of 2 pendant phenyl groups and 4 pendant tolyl groups and the second polymer...

Poly(phenylene)-based anion exchange polymers and methods thereof

Patent • #US10370483B2. The present invention relates to anionic exchange polymers including a poly(phenylene) structure. The structure can include any useful cationic moiety. Methods and uses of such structures and polymers are also described herein. In one instance, such polymers are employed to form a solid membrane.

Poly(phenylene)-based anion exchange polymers and methods thereof

Patent • #US10053535B2. The present invention relates to anionic exchange polymers including a poly(phenylene) structure. The structure can include any useful cationic moiety. Methods and uses of such structures and polymers are also described herein. In one instance, such polymers are employed to form a solid membrane.

Polyarene mediators for mediated redox flow battery

Patent • #US9859583B2. The fundamental charge storage mechanisms in a number of currently studied high energy redox couples are based on intercalation, conversion, or displacement reactions. With exception to certain metal-air chemistries, most often the active redox materials are stored physically in the electrochemical cell stack thereby lowering the practical gravimetric and...

Polymer Membrane Separators for Fuel Cells

Featured Opportunity • Versatile polymer membrane separator technologies with improved long-term stability, performance in high temperatures, and suitability for acidic and alkaline environments Fuel cells are hailed as clean, quiet, and efficient technologies with great promise for electric vehicle applications. To date, water-based acidic polymer electrolyte membrane fuel cells (PEMFCs) have been widely...

Polymeric matrix materials for infrared metamaterials

Patent • #US8703391B1. A polymeric matrix material exhibits low loss at optical frequencies and facilitates the fabrication of all-dielectric metamaterials. The low-loss polymeric matrix material can be synthesized by providing an unsaturated polymer, comprising double or triple bonds; partially hydrogenating the unsaturated polymer; depositing a film of the partially hydrogenated polymer and...

Polymeric salt bridges for conducting electric current in microfluidic devices

Patent • #US7618524B1. A "cast-in-place" monolithic microporous polymer salt bridge for conducting electrical current in microfluidic devices, and methods for manufacture thereof is disclosed. Polymeric salt bridges are formed in place in capillaries or microchannels. Formulations are prepared with monomer, suitable cross-linkers, solvent, and a thermal or radiation responsive initiator. The formulation...

Polymers depolymerizable by metathesis of a cleavable unit

Patent • #US11873367B2. Novel polymers are depolymerizable by metathesis of a cleavable unit. As an example, a series of linear and crosslinked polyurethanes were prepared that can be selectively depolymerized under mild conditions. Two unique polyols were synthesized bearing unsaturated units in a configuration designed to favor ring-closing metathesis to five- and...

Polyoxometalate active charge-transfer material for mediated redox flow battery

Patent • #US9548509B2. Redox flow batteries including a half-cell electrode chamber coupled to a current collecting electrode are disclosed herein. In a general embodiment, a separator is coupled to the half-cell electrode chamber. The half-cell electrode chamber comprises a first redox-active mediator and a second redox-active mediator. The first redox-active mediator and...

Polyoxometalate flow battery

Patent • #US9287578B2. Flow batteries including an electrolyte of a polyoxometalate material are disclosed herein. In a general embodiment, the flow battery includes an electrochemical cell including an anode portion, a cathode portion and a separator disposed between the anode portion and the cathode portion. Each of the anode portion and the...

Porous materials via freeze-casting of metal salt solutions

Patent • #US10086431B2. Disclosed here is a method for making a nanoporous material, comprising aerosolizing a solution comprising at least one metal salt and at least one solvent to obtain an aerosol, freezing the aerosol to obtain a frozen aerosol, and drying the frozen aerosol to obtain a nanoporous metal compound material....

Porous materials via freeze-casting of metal salt solutions

Patent • #US11376657B2. Disclosed here is a method for making a nanoporous material, comprising aerosolizing a solution comprising at least one metal salt and at least one solvent to obtain an aerosol, freezing the aerosol to obtain a frozen aerosol, and drying the frozen aerosol to obtain a nanoporous metal compound material....

Porous metals from sintering of nanoparticles

Patent • #US9981313B1. A method including encapsulating or capping metallic nanoparticles by a dendrimer or a polymer with binding sites for metal particless or metal ions dispersed in a fluid; modifying the fluid to disrupt the interaction of the dendrimer or polymer with the particles; and subsequently or concomitantly sintering or partially...

Portable and Sensitive Threat Detection Using Carbon Dot Nanomaterials/Bar Coding Technology

Featured Opportunity • Innovative technology uses convenient cell phone readout to rapidly identify hazardous materials for defense, emergency response and environmental monitoring The need for effective, portable, and user-centric threat detection systems is increasingly important in today’s environment. Traditional detection solutions often depend on bulky equipment that is difficult to transport and requires...

Portable Gas Leak Detection System

Featured Opportunity • Sandia National Laboratories has developed imaging systems for the detection, quantification and monitoring of gaseous leaks. Using the backscatter absorption gas imaging (BAGI) technique, these devices can remotely produce real-time video images of gases invisible to the human eye. This simplifies the leak-detection process and allows a broad area to...

Portable modular detection system

Patent • #US7602307B1. Disclosed herein are portable and modular detection devices and systems for detecting electromagnetic radiation, such as fluorescence, from an analyte which comprises at least one optical element removably attached to at least one alignment rail. Also disclosed are modular detection devices and systems having an integrated lock-in amplifier and...
Results 1276–1300 of 1,895