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| Number | Title | Issue Date |
| 8189187 | Monolithic optical flow cells and method of manufacture An improved optical flow cell adapted for use in a flow cytometer for differentiating formed bodies (e.g., blood cells). Manufactured from a monolithic transparent material, the improved flow cell has an internal flow channel of polygonal transverse cross-section th... | 05/29/2012 |
| 8174691 | Detection of a component of interest with an ultraviolet laser and method of using the same A device is provided for detection and analysis of a component of interest in a sample comprising a small sample cell used with an ultra violet laser. The energy of the laser is spread over an area such that energy density is above desorption threshold, but the samp... | 05/08/2012 |
| 8130375 | Small volume cell A small internal volume cell having fluid entry, and exit ports wherein at least one bubble trap is present in a fluid pathway which is continuous with the fluid exit port. There further being present an input/output aperture, for entering and exiting electromagneti... | 03/06/2012 |
| 8120770 | Three-dimensional (3D) hydrodynamic focusing using a microfluidic device A microfluidic device comprises inlets for a sample flow and an out-of-plane focusing sheath flow, and a curved channel section configured to receive the sample flow and out-of-plane focusing sheath and to provide hydrodynamic focusing of the sample flow in an out-o... | 02/21/2012 |
| 8107067 | Opaque additive to block stray light in teflon AF light-guiding flowcells The present invention is directed to the use of a light absorbing wall material to eliminate stray light paths in light-guiding structures, such as those used for HPLC absorbance detection. More specifically, the present invention relates to the use of carbon-doped ... | 01/31/2012 |
| 8102523 | Method of use of reusable sample holding device permitting ready loading of very small wet samples A method for using a reusable sample-holding device for readily loading very small wet samples for observation of the samples by microscopic equipment, in particular in a vacuum environment. The method may be used with a scanning electron microscope (SEM), a transmi... | 01/24/2012 |
| 8072594 | Liquid level sensor A liquid level sensor probe for determining liquid level within a vessel, the liquid level sensor probe comprising at least one light source positioned for emitting radiant energy; at least one photosensor positioned for detecting an amount of radiant energy receive... | 12/06/2011 |
| 8064050 | Method of using a flow cell apparatus for visualizing additive deposition on a substrate A method of visualizing the deposition of an additive from a personal care composition onto substrates such as hair, skin mimic and fabric through the use of a flow cell device. ... | 11/22/2011 |
| 8064051 | Apparatus and method for spectrophotometric analysis An apparatus for spectrophotometric analysis comprises a sample reception surface, which is arranged to receive a sample to be analyzed, and a sample contacting surface, which is moveable in relation to the sample reception surface such that it may be brought to a f... | 11/22/2011 |
| 8059271 | Reusable sample holding device permitting ready loading of very small wet samples A reusable sample-holding device for readily loading very small wet samples for observation of the samples by microscopic equipment, in particular in a vacuum environment. Embodiments may be used with a scanning electron microscope (SEM), a transmission electron mic... | 11/15/2011 |
| 8040505 | Device and method for separating a liquid component of a blood sample, and analyzer apparatus comprising such a device A device for separating at least part of the liquid component of a blood sample and methods thereof are disclosed. Generally, the device includes a container body for receiving the blood sample, a layer of retaining porous material, a layer of separating permeable m... | 10/18/2011 |
| 8035811 | Devices and methods for visualization of a sample in a microplate Disclosed herein is a microplate comprising a plurality of wells and methods and systems comprising such microplates, wherein an individual well comprises an opaque or non-transparent surface at or near the bottom of the well. The microplates herein can provide impr... | 10/11/2011 |
| 8009287 | Method and system for high throughput mass analysis The invention relates to a test method, especially for mass spectroscopy of biomolecules, including the following steps: one or several samples (2-4) that are to be analyzed are introduced into a carrier liquid of a micro liquid jet (1) in rapid... | 08/30/2011 |
| 8004670 | Apparatus and method for spectrophotometric analysis An apparatus for spectrophotometric analysis comprises a sample reception surface, which is arranged to receive a sample to be analysed, and a sample contacting surface, which is moveable in relation to the sample reception surface such that it may be brought to a f... | 08/23/2011 |
| 8004671 | Method for identifying a transparent object with the aid of its absorption spectrum The present invention relates to a method for identifying transparent objects, for example measurement cuvettes, with the aid of their absorption spectrum and therefore makes it possible to protect articles against forgery or imitation. ... | 08/23/2011 |
| 8004672 | Closed cell for use in spectrophotometers A closed cell for use in spectrophotometers is adapted to receive a liquid to be subjected to analysis and an air space or bubble to absorb pressure differentials, wherein the cell includes means to retain the air space or bubble in a predetermined location in the c... | 08/23/2011 |
| 7986406 | Method and apparatus for spectroscopic analysis Apparatus for obtaining the gas-phase electromagnetic radiation spectrum of a liquid sample, including an analysis chamber having an inlet and an outlet, wherein the inlet and analysis chamber are such that, in use, liquid sample is drawn into the inlet through capi... | 07/26/2011 |
| 7973923 | Multi-port inline flow cell for use in monitoring multiple parameters in a sanitary process line Inline flow cell for use in monitoring multiple parameters in a sanitary process line, comprising a body with opposing end walls, a flow passageway extending along an axis between the end walls, and a plurality of side walls disposed tangentially about the axis, inl... | 07/05/2011 |
| 7961310 | Transmission liquid flow cell with increased internal flow rates The present invention relates to a transmission liquid flow cell capable of high rates of liquid flows regardless of the optical pathlength of the cell. This increase in the cell's internal flow rate is provided by an internal bypass created around the circumference... | 06/14/2011 |
| 7961311 | Detecting and counting bacteria suspended in biological fluids System and method for detecting and counting bacteria suspended in a biological fluid by means of light scattering measurements is provided. In accordance with the method of the invention the level of signal to noise of the measured intensities of light scattered by... | 06/14/2011 |
| 7952705 | Integrated microfluidic optical device for sub-micro liter liquid sample microspectroscopy The present disclosure relates to the fields of microchips with microfluidic optical chambers for multiplexed optical spectroscopy. Embodiments of the present invention allow for ultra small sample volume, as well as high detection speed and throughput, as compared ... | 05/31/2011 |
| 7948619 | Cuvette and method for using the cuvette A cuvette with at least one sealing element and two transparent elements is provided where the latter are arranged at a distance from one another and define two opposing boundary faces of a sample channel and the sealing element defines side walls of the sample chan... | 05/24/2011 |
| 7933012 | Microfluidic chip apparatuses, systems and methods having fluidic and fiber optic interconnections According to one embodiment, apparatuses and methods are provided for connecting a light-guiding conduit to a microfluidic channel. First and second substrates with first surfaces can be provided, wherein the first surfaces of the first and second substrates form a ... | 04/26/2011 |
| 7894055 | Flow-through, inlet-gas-temperature-controlled, solvent-resistant, thermal-expansion compensated cell for light spectroscopy Optical cells include a spacer formed of a hydrocarbon-resistant polymer, so that fluids such as hydrocarbons and alcohols can be introduced to a sample space, or include a fluid inlet and a heated inlet tube, so that a humid gas can be introduced to the sample spac... | 02/22/2011 |
| RE42143 | Consumable tube for use with a flow cytometry-based hematology system The present invention is a flow cytometry-based hematology system useful in the analysis of biological samples, particularly whole blood or blood-derived samples. The system is capable of determining at least a complete blood count (CBC), a five-part white blood cel... | 02/15/2011 |
| 7872746 | Single light source uniform parallel light curtain A continuous high resolution fluid level monitoring system is provided by embodiments of the present invention. This continuous high resolution fluid level monitoring system includes a unique fluid level sensor having a point light source, parabolic reflector, senso... | 01/18/2011 |
| 7869028 | Apparatus for the electromagnetic spectrum or optical analysis, in particular photometric, spectrophotometric or image analysis An apparatus for the electromagnetic spectrum or optical analysis of a material. The apparatus comprising a measuring probe having a housing with at least one radiation or light measuring element, a measuring window and with at least one detection element for the an... | 01/11/2011 |
| 7859657 | Methods of making and using an apparatus and devices for placing light and sample in photo-emitting or absorbing devices The present invention relates to apparatus and devices (11) for placing light with samples for analysis and method of making and using such apparatus and device. ... | 12/28/2010 |
| 7843561 | Optical system for a flow cytometer with an interrogation zone The optical system of the preferred embodiments includes a first light source that creates a first beam of a first wavelength, a first collimating element that collimates the first beam, a second light source 102 that creates a second beam of a second wavelen... | 11/30/2010 |
| 7830503 | Flowthrough cell of the flowing spectrophotomatic analysis A transparent tube is used as the fluid pathway of a flowthrough cell, which not only makes sure the fluid can retain the stable laminar state without micro-bubble existing, but also can avoid the turbulent state and the micro-bubbles that produce the negative peak ... | 11/09/2010 |
| 7817266 | Small volume cell A small internal volume cell having fluid entry, and exit ports wherein bubble traps are present in a bifurcated fluid pathway continuous with the fluid exit port. There further being present input and output apertures, for entering and exiting electromagnetic radia... | 10/19/2010 |
| 7800751 | Dense pattern multiple pass cells An optical cell and a method of operating an optical cell comprising employing a first mirror comprising a first hole therein at approximately a center of the first mirror and through which laser light enters the cell, employing a second mirror comprising a second h... | 09/21/2010 |
| 7777877 | High efficiency coupling optics for pumping and detection of fluorescence The invention provides a high efficiency coupling structure for extracting illumination such as fluorescent radiation from a chemical reaction vessel such as a cuvette. The cuvette is provided with a mirrored surface. An end cap for the cuvette includes a probe port... | 08/17/2010 |
| 7764370 | System and method to zero chambers in a surgical cassette Embodiments of the present invention provide a system and method for determining the location of the bottom of a fluid chamber in a surgical cassette to calibrate the surgical system. According to one embodiment, the surgical cassette is shaped to allow light from a... | 07/27/2010 |
| 7760351 | Cytometer having fluid core stream position control A cytometer having two or more chambers or regions in a containment structure of sheathing fluid that may be used to provide hydrodynamic focusing of another fluid having particles to be observed. The latter fluid may be a core stream which may have its lateral posi... | 07/20/2010 |
| 7751040 | Microchip with expansion channel and flowcytometer using this microchip Disclosed is a microchip for a flowcytometer. A channel is expanded around a point, on which laser beams emitted from an optical unit are focused, so that focused sample particles slow down when they pass the expanded portion. This improves the detection intensity o... | 07/06/2010 |
| 7746466 | System and method for flow cytometry A flow cytometry system and related method, among other things, are disclosed. In at least one embodiment, the system includes first, second, and intermediate slab formations, the last of which has formed therewithin a microfluidic channel, a lens structure arranged... | 06/29/2010 |
| 7738094 | Method, system, and compositions for cell counting and analysis The present invention provides a low cost imaged-based system for detecting, measuring and/or counting labeled features of biological samples, particularly blood specimens. In one aspect, the invention includes a system for imaging multiple features of a specimen th... | 06/15/2010 |
| 7688439 | Optical measuring system An optical measuring system includes a carrying tray for carrying a specimen, a first light source module, a second light source module and an optical measuring module. The first light source module is disposed at the first side of the carrying tray and the specimen... | 03/30/2010 |
| 7667837 | Capillary tube flow cell Provided is a capillary tube flow cell used in analyses at very low flow rates and, particularly, in liquid chromatographic analyses. To ensure that high detection sensitivity and low noise can be realized, a flow cell which houses a liquid sample and exposes the li... | 02/23/2010 |
