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Device for measuring a characteristic of a color cathode ray tube

Patent • #5,049,791. A device for measuring convergence of a color CRT including image pickup means for producing three color image signals with respect to three color test patterns constituting a composite test pattern presented on a viewing screen of a color CRT, change means for changing the image magnification of said...

Device-packaging method and apparatus for optoelectronic circuits

Patent • #9,632,261. An optoelectronic device package and a method for its fabrication are provided. The device package includes a lid die and an active die that is sealed or sealable to the lid die and in which one or more optical waveguides are integrally defined. The active die includes one or...

Devices and methods to detect and quantify trace gases

Patent • #9,329,154. Sensing devices based on a surface acoustic wave ("SAW") device coated with an absorbent crystalline or amorphous layer for detecting at least one chemical analyte in a gaseous carrier. Methods for detecting the presence of a chemical analyte in a gaseous carrier using such devices are also disclosed. The...

Devices for studying plant-fungus interactions and for imaging plant roots

Patent • #11993764. This disclosure provides systems, methods, and apparatus related to the determination of ecological processes. In one aspect, a device includes a base and a substrate in contact with a first side of the base. The base defines a stem port. The substrate and the first side of the base...

Devices, systems, and methods for conducting sandwich assays using sedimentation

Patent • #8,945,914. Embodiments of the present invention are directed toward devices, systems, and method for conducting sandwich assays using sedimentation. In one example, a method includes generating complexes on a plurality of beads in a fluid sample, individual ones of the complexes comprising a capture agent, a target analyte, and a...

Devices, systems, and methods for detecting nucleic acids using sedimentation

Patent • #9,795,961. Embodiments of the present invention are directed toward devices, systems, and method for conducting nucleic acid purification and quantification using sedimentation. In one example, a method includes generating complexes which bind to a plurality of beads in a fluid sample, individual ones of the complexes comprising a nucleic acid...

Devices, systems, and methods for microscale isoelectric fractionation

Patent • #9,409,357. Embodiments of the present invention provide devices, systems, and methods for microscale isoelectric fractionation. Analytes in a sample may be isolated according to their isoelectric point within a fractionation microchannel. A microfluidic device according to an embodiment of the invention includes a substrate at least partially defining a fractionation...

Devices, systems, and methods for microscale isoelectric fractionation

Patent • #9,005,417. Embodiments of the present invention provide devices, systems, and methods for microscale isoelectric fractionation. Analytes in a sample may be isolated according to their isoelectric point within a fractionation microchannel. A microfluidic device according to an embodiment of the invention includes a substrate at least partially defining a fractionation...

Diagnostic/drug delivery “sense-respond” devices, systems, and uses thereof

Patent • #9,987,427. The present invention is directed to devices, systems, and methods for detecting and/or monitoring one or more markers in a sample. In particular, such devices integrate a plurality of hollow needles configured to extract or obtain a fluid sample from a subject, as well as transducers to detect a...

Dialysis membrane for separation on microchips

Patent • #7,754,077. Laser-induced phase-separation polymerization of a porous acrylate polymer is used for in-situ fabrication of dialysis membranes inside glass microchannels. A shaped 355 nm laser beam is used to produce a porous polymer membrane with a thickness of about 15 .mu.m, which bonds to the glass microchannel and forms a...

Dialysis on microchips using thin porous polymer membranes

Patent • #7,264,723. Laser-induced phase-separation polymerization of a porous acrylate polymer is used for in-situ fabrication of dialysis membranes inside glass microchannels. A shaped 355 nm laser beam is used to produce a porous polymer membrane with a thickness of about 15 .mu.m, which bonds to the glass microchannel and form a...

Die singulation method

Patent • #8,461,023. A method is disclosed for singulating die from a semiconductor substrate (e.g. a semiconductor-on-insulator substrate or a bulk silicon substrate) containing an oxide layer (e.g. silicon dioxide or a silicate glass) and one or more semiconductor layers (e.g. monocrystalline or polycrystalline silicon) located above the oxide layer. The method...

Die singulation method

Patent • #8,623,744. A method is disclosed for singulating die from a semiconductor substrate (e.g. a semiconductor-on-insulator substrate or a bulk silicon substrate) containing an oxide layer (e.g. silicon dioxide or a silicate glass) and one or more semiconductor layers (e.g. monocrystalline or polycrystalline silicon) located above the oxide layer. The method...

Die singulation method and package formed thereby

Patent • #8,236,611. A method is disclosed for singulating die from a substrate having a sacrificial layer and one or more device layers, with a retainer being formed in the device layer(s) and anchored to the substrate. Deep Reactive Ion Etching (DRIE) etching of a trench through the substrate from the bottom...

Dielectrokinetic chromatography and devices thereof

Patent • #8,702,946. Disclosed herein are methods and devices for dielectrokinetic chromatography. As disclosed, the devices comprise microchannels having at least one perturber which produces a non-uniformity in a field spanning the width of the microchannel. The interaction of the field non-uniformity with a perturber produces a secondary flow which competes with...

Dielectrophoresis device and method having insulating ridges for manipulating particles

Patent • #7,347,923. Embodiments of the present invention provide methods and devices for manipulating particles using dielectrophoresis. Insulating ridges and valleys are used to generate a spatially non-uniform electrical field. Particles may be concentrated, separated, or captured during bulk fluid flow in a channel having insulating ridges and valleys.
Results 426–450 of 2,459