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Fabrication of small-scale structures with non-planar features

Patent • #US9190736B1. The fabrication of small-scale structures is disclosed. A unit-cell of a small-scale structure with non-planar features is fabricated by forming a membrane on a suitable material. A pattern is formed in the membrane and a portion of the substrate underneath the membrane is removed to form a cavity. Resonators...

Fabrication of thermal microphotonic sensors and sensor arrays

Patent • #US7820970B1. A thermal microphotonic sensor is fabricated on a silicon substrate by etching an opening and a trench into the substrate, and then filling in the opening and trench with silicon oxide which can be deposited or formed by thermally oxidizing a portion of the silicon substrate surrounding the opening...

Falling particle solar receivers

Patent • #US11326810B2. Falling particle solar receivers, systems, and methods are disclosed that include one non-linear falling particle curtain or two or more falling particle curtains within a solar receiver that receives incident solar radiation. The particles heated in the solar receiver may be used to heat a secondary fluid. In an...

Falling particle solar receivers

Patent • #US10508834B1. Falling particle solar receivers, systems, and methods are disclosed that include one non-linear falling particle curtain or two or more falling particle curtains within a solar receiver that receives incident solar radiation. The particles heated in the solar receiver may be used to heat a secondary fluid. In an...

Fast electron microscopy via compressive sensing

Patent • #US8907280B1. Various technologies described herein pertain to compressive sensing electron microscopy. A compressive sensing electron microscope includes a multi-beam generator and a detector. The multi-beam generator emits a sequence of electron patterns over time. Each of the electron patterns can include a plurality of electron beams, where the plurality of...

Fast frequency divider circuit using combinational logic

Patent • #US9667231B1. The various technologies presented herein relate to performing on-chip frequency division of an operating frequency of a ring oscillator (RO). Per the various embodiments herein, a conflict between RO size versus operational frequency can be addressed by dividing the output frequency of the RO to a frequency that can...

Fast time-correlated multi-element photon detector and method

Patent • #US7310142B2. Photons emitted from a sample responsive to being excited by laser pulses are directed through a prism onto a photomultiplier tube having several spaced-apart anodes. The prism alters the path of each photon as a function of its wavelength so that the wavelength determines the anode to which the...

Feedback-based quantum optimization

Patent • #US12306900B1. A system for identifying approximate solutions to discrete optimization problems includes a quantum computing device. The quantum computing device iteratively configures a layered quantum circuit to evaluate a Hamiltonian representation of a cost function over a set of parameter values. After each iteration, the quantum computing device identifies a...

Fentanyl Analog Independent Detection (FAID)

Featured Opportunity • Portable fentanyl detection technology offers unmatched sensitivity and enhanced safety for first responders, military, and law enforcement personnel Business Problem Fentanyl, a synthetic opioid, is the leading cause of death among Americans aged 18 to 45. Its chemical structure can be easily altered, resulting in more than 4,000 modified formulations...

Ferroelectric opening switch

Patent • #US10431280B1. A ferroelectric opening switch is enabled by controlled polarization switching via nucleation in a ferroelectric material, such as BaTiO3, Pb(Zr,Ti)O3, LiNbO3, LiTaO3, or variants thereof. For example, nucleation sites can be provided by mechanical seeding, grain boundaries, or optical illumination. The invention can be used as an opening switch...

Fiber-Optic Long-Line Position Sensor

Featured Opportunity • Sandia National Laboratories has developed a side-emitting fiber optic position sensor and method of determining an unknown position of an object by using the sensor.Non-electrical position sensors like the one developed by Sandia are desirable for use in hazardous environment, e.g., for measuring the liquid level in gasoline or jet...

Field programmable gate array bitstream verification

Patent • #US10262098B1. Described herein are various technologies pertaining to confirming an integrity of a FPGA. A verifier circuit is placed into an FPGA bitstream to enable external verification of the FPGA configuration in real time without requiring readout of the FPGA configuration itself. Number generators are utilized to generate a key...

Filter arrays

Patent • #US9720102B1. The various technologies presented herein relate to a tiled filter array that can be used in connection with performance of spatial sampling of optical signals. The filter array comprises filter tiles, wherein a first plurality of filter tiles are formed from a first material, the first material being configured...

Filtration membranes

Patent • #US11167250B1. A membrane assembly is provided. The membrane assembly includes a non-metallic, porous substrate. A graphene oxide membrane is formed over the non-metallic, porous substrate. A chemical linker interface covalently binds the graphene oxide membrane to the non-metallic, porous substrate.

Flexible packaging for microelectronic devices

Patent • #US9978895B2. An apparatus, method, and system, the apparatus and system including a flexible microsystems enabled microelectronic device package including a microelectronic device positioned on a substrate; an encapsulation layer encapsulating the microelectronic device and the substrate; a protective layer positioned around the encapsulating layer; and a reinforcing layer coupled to...

Flexible, secure agent development framework

Patent • #US7516112B1. While an agent generator is generating an intelligent agent, it can also evaluate the data processing platform on which it is executing, in order to assess a risk factor associated with operation of the agent generator on the data processing platform. The agent generator can retrieve from a location...

Flexure for Self-Assembly

Featured Opportunity • A compliant flexure design with highly tunable features to reduce error and over-constraint in sophisticated manufacturing and assembly environments Conventional fasteners like nails, bolts, and welds are subject to manufacturing and inspection tolerances, differential thermal growth, and other sources of error that lead to over-constraint and other challenges for manufacturers...

Flow assist vent mast

Patent • #US12297960B1. A venting system includes a vent valve in an opening of a storage tank, a carrier gas source for supplying a carrier gas, and a Vent Mast that has a Vent Mast outlet. The Vent Mast has a vent tube and a carrier gas tube. The vent tube extends...

Flow assisted anti-fouling geometries for compact heat exchangers

Patent • #US12305932B2. A header for a heat exchanger and method for cleaning a heat exchanger in a loop without disconnecting loop components is provided. The header is in flow communication with the heat exchanger for distributing fluid through a plurality of adjacent channels. The header is connected between a main heat...
Results 476–500 of 1,914