Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 8012758 | Method of monitoring microbiological activity in process streams An apparatus and method for monitoring microbiological activity in a process stream by measuring dissolved oxygen is disclosed. Bulk microbiological activity and surface associated biological activity are measured using this apparatus and method. ... | 09/06/2011 |
| 7871824 | Flow chamber A flow chamber having a vacuum chamber and a specimen chamber. The specimen chamber may have an opening through which a fluid may be introduced and an opening through which the fluid may exit. The vacuum chamber may have an opening through which contents of the vacu... | 01/18/2011 |
| 7858372 | Flow cell facilitating precise delivery of reagent to a detection surface using evacuation ports and guided laminar flows, and methods of use The present invention is a flow cell and method for use in microfluidic analyses that presents highly discrete and small volumes of fluid to isolated locations on a two-dimensional surface contained within an open fluidic chamber defined by the flow cell that has ph... | 12/28/2010 |
| 7687269 | Method for efficient transport of small liquid volumes to, from or within microfluidic devices Methods are presented for realizing zero-dispersion segmented flow for transfer of small microfluidic samples onto or within microfluidic analysis or processing devices. Where fluidic systems are in whole or in part made of materials favorable to the zero-dispersion... | 03/30/2010 |
| 7595195 | Microfluidic devices for controlled viscous shearing and formation of amphiphilic vesicles Systems and methods that control the size and composition of emulsified droplets, multi-lamellar and asymmetric vesicles, encapsulation of reagents, membrane proteins, and sorting of vesicles/droplets. More particularly, microfluidic devices for controlled viscous s... | 09/29/2009 |
| 7582482 | Continuous ion species removal device and method Apparatus and method for treating a liquid sample stream including at least one analyte ion species and matrix ion species of opposite charge to said one analyte ion species. The liquid sample stream flows through a treatment channel. A carrier liquid stream includi... | 09/01/2009 |
| 7579191 | Reaction method using microreactor In a reaction caused by using a microreactor which provides a plurality of supply routes in communication with one reaction channel as a multicylindrical structure having a co-axis and causes a plurality of fluids L1, L2, L3 to flow together in ... | 08/25/2009 |
| 7442556 | Microfluidic-based electrospray source for analytical devices with a rotary fluid flow channel for sample preparation This invention provides microfluidic devices and methods for using the same. Microfluidic devices of the present invention comprises a first elastic layer, a fluid flow channel within the elastic layer; and a means for providing a fluid sample from the fluid flow ch... | 10/28/2008 |
| 7442339 | Microfluidic apparatus, Raman spectroscopy systems, and methods for performing molecular reactions Disclosed herein are methods, apparatuses, and systems for performing nucleic acid sequencing reactions and molecular binding reactions in a microfluidic channel. The methods, apparatuses, and systems can include a restriction barrier to restrict movement of a parti... | 10/28/2008 |
| 7438856 | Microfluidic devices and methods Embodiments of the invention are directed to microfluidic devices. In one embodiment, a microanalysis chip comprises a body having at least one transfer-separation channel with a channel bottom that has a bottom opening. The transfer-separation channel terminates in... | 10/21/2008 |
| 7439070 | Waste material handling, sampling and metal content value calculation A bulk sample is fed with a liquid into a mixing tank (1) where it is stirred to form a dispersion. A proportion of the dispersion is recycled from the bottom of the tank through a line to the top of the tank so that at least the dispersion in the recycle loo... | 10/21/2008 |
| 7431889 | Inner walls of microfluidic devices A microfluidic device comprising one, two, three or more enclosed microchannel structures, each of which comprises a) an inlet arrangement with an inlet opening for liquid, b) a reaction microcavity (RM1) downstream to the inlet opening, and c) an upstrea... | 10/07/2008 |
| 7419830 | Plural reaction chamber catalytic testing device and method for its use in catalyst testing A catalytic testing device comprising a reaction block comprising a set of reaction chambers, each chamber comprising a fluid inlet and outlet connected to an outgoing fluid duct connected to analysis means, fluid ... | 09/02/2008 |
| 7416901 | Method and coating apparatus for the manufacture of a microarray In a method for the manufacture of a microarray, surface areas of a chip are brought into contact with different aqueous solutions that contain at least one coating substance. For each of the individual surface areas, an absorbent substrate is provided and is filled... | 08/26/2008 |
| 7416902 | Method and apparatus for airborne particle sorting An apparatus for airborne particle sorting is provided comprising a charging system adapted for applying an electrostatic charge to the particles, such that particles of at least a first group are deflected to a greater extent than particles of a second group are de... | 08/26/2008 |
| 7416903 | Wavy interface mixer The present invention provides methods and apparatus for mixing samples in-line in a microfluidic system, comprising methods of and means for introducing a first fluid sample into a flow-tube at a first end at a first velocity via a first conduit; methods of and mea... | 08/26/2008 |
| 7413713 | Reaction apparatus and mixing system A reaction apparatus comprises a first supply flow channel having a fine flow channel cross sectional area for a liquid pressurized by a pressurizing device, a gas supply flow channel having a fine flow channel cross sectional area for supplying a gas, a two-phase f... | 08/19/2008 |
| 7393690 | Systems and methods for measuring fluid properties A method for measuring properties of a fluid including placing a quantity of fluid in a container; inducing flow in the fluid wherein the flow is substantially streamlined in at least a measuring region of the container by constricting flow, and wherein the fluid is... | 07/01/2008 |
| 7389706 | Method to detect and characterize contaminants in pipes and ducts with interactive tracers A method and an apparatus for detecting, locating, and quantifying contamination in a fluid flow system like a pipe or duct. This characterization technique uses a conservative and one or more interactive tracers that are injected into the fluid flow system and then... | 06/24/2008 |
| 7388108 | Oxidation reactor, process for producing (meth)acrylic acids, and method for analyzing easily-polymerizable compounds An oxidation reactor includes a reactor body, a manhole nozzle projecting from the reactor body, and a partition plate separating an inside of the manhole nozzle and an inside of the reactor body from each other. In an oxidation reactor including the reactor body an... | 06/17/2008 |
| 7371247 | Method and apparatus for penetrating tissue A tissue penetrating system includes a plurality of penetrating members each having a tip. A penetrating member driver is coupled to the plurality of penetrating members. Each tip of a penetrating member is uncovered during launch of the penetrating member by the pe... | 05/13/2008 |
| 7361206 | Apparatus and method for water vapor removal in an ion mobility spectrometer The present invention is directed to an apparatus and a method for continuously removing water vapor from a closed loop, re-circulated gas flow in an ion mobility spectrometer using a water permeable membrane, having a first side and a second side opposite the first... | 04/22/2008 |
| 7351587 | Method for the online determination of hydrogen peroxide A process for the on-line determination of the hydrogen peroxide content of a mixture obtained in a chemical reaction comprises at least the following steps: (1) admixing the mixture comprising hydrogen peroxide with at least one reagent which is capabl... | 04/01/2008 |
| 7349092 | System for reducing stress induced effects during determination of fluid optical constants A system for determination of optical constants of liquids, including provision for reducing stress induced effects while obtaining data. ... | 03/25/2008 |
| 7347617 | Mixing in microfluidic devices Mixing of liquids in a microfluidic device is accomplished by dispensing the liquids into a first chamber to produce combined liquid. The liquids are thereafter discharged through at least one capillary from the first chamber into a second chamber for complete mixin... | 03/25/2008 |
| 7335383 | Generation of nitric oxide in vivo from nitrite, nitrate or nitrosothiols endogenous in blood A material includes a surface and a reactive agent that is located at the surface of the material, covalently attached to a backbone of the material, and/or located within the material. The reactive agent has nitrite reductase activity, nitrate reductase activity, a... | 02/26/2008 |
| 7331248 | Method and apparatus for detecting and locating explosives, biological, and chemical substances in ducts and structures using tracers A method and an apparatus for detecting, locating, and quantifying explosive materials and devices, and naturally occurring and man-made dangerous or hazardous biological and chemical materials and devices in ducts or piping systems, or other fluid flow systems in b... | 02/19/2008 |
| 7331931 | Method and apparatus for penetrating tissue These and other objects of the present invention are achieved in a body fluid sampling system for use on a tissue site that includes an electrically powered drive force generator. A penetrating member is operatively coupled to the force generator. The force generato... | 02/19/2008 |
| 7329545 | Methods for sampling a liquid flow In a method for sampling a continuous liquid flow, the liquid flow is supplied to a surface along an input flow path. The liquid flow is sampled by forming a sample droplet from a portion of the liquid flow. The sample droplet is moved along an analysis flow path to... | 02/12/2008 |
| 7323140 | Moving microdroplets in a microfluidic device The present invention relates to a system and method for moving samples, such as fluid, within a microfluidic system using a plurality of gas actuators for applying pressure at different locations within the microfluidic. The system includes a substrate which forms ... | 01/29/2008 |
| 7323343 | Nitrogen monoxide, nitrogen dioxide and ozone determination in air An analytical system is provided for determining nitrogen monoxide, nitrogen dioxide and ozone concentrations in air samples. An ultraviolet light source 4 is used to alter the equilibrium between nitrogen dioxide and oxygen on the one hand and nitrogen monox... | 01/29/2008 |
| 7320775 | Exchangeable flow cell assembly with a suspended capillary There is provided a flow cell assembly in which a shuttle supports and positions a capillary with its end extending beyond the shuttle. The flow cell assembly facilitates the replacement of a flow cell which is damaged or with flow cells having capillaries of differ... | 01/22/2008 |
| 7318912 | Microfluidic systems and methods for combining discrete fluid volumes Microfluidic devices capable of combining discrete fluid volumes generally include channels for supplying different fluids toward a sample chamber and means for establishing fluid communication between the fluids within the chamber. Discrete fluid plugs are defined ... | 01/15/2008 |
| 7316700 | Self optimizing lancing device with adaptation means to temporal variations in cutaneous properties A lancing device, an embodiment of which controls the advancement and retraction of a lancet by monitoring the position of the lancet in conjunction with a lancet controller which incorporates a feedback loop for modulating the lancet driver to follow a predetermine... | 01/08/2008 |
| 7314718 | Method and apparatus for maintaining multiple planar fluid flows The present invention provides a method of performing analyses and assays involving multiple interactions of reagent-containing fluid flows with liquid and solid target substances. The methods of the invention allow the simultaneous manipulation of different fluids ... | 01/01/2008 |
| 7310992 | Device for continuous real-time monitoring of ambient air The present invention provides a device for continuous real-time monitoring of ambient air. The device includes a receptacle, a liquid supply, and a pressure balancing system. The receptacle includes a gas inlet slit located such that the gas inlet slit is covered b... | 12/25/2007 |
| 7309467 | Fluidic MEMS device A fluidic micro electro-mechanical system (MEMS) device is described. In one aspect, at least one at least partially covered fluidic channel is formed between a polymer layer and a polymer substrate as the polymer layer is deposited on the substrate. The partially c... | 12/18/2007 |
| 7294307 | Apparatus for pumping and directing fluids for hematology testing An apparatus is provided for hematology testing, which has a sensing unit defining a counting orifice for the flow of a blood sample through the counting orifice to analyze the blood sample, and a pump unit having three syringes. A first syringe is coupled in fluid ... | 11/13/2007 |
| 7291117 | Method and apparatus for penetrating tissue These and other objects of the present invention are achieved in a body fluid sampling system for use on a tissue site that includes a voice coil based penetrating member driver. A plurality of penetrating members are included. A transport mechanism is configured to... | 11/06/2007 |
| 7291497 | Medical device for analyte monitoring and drug delivery The invention relates to an ingestible, implantable or wearable medical device comprising a microarray which comprises a bioactive agent capable of interacting with a disease marker biological analyte; a reservoir which comprises at least one therapeutic agent and i... | 11/06/2007 |
