Famous Patents
The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8122779 | Electronic pipettor with improved accuracy A hand-held electronic pipettor is designed particularly to be programmed and operated with one hand for the convenience of the user. It uses a capacitance touchpad control for programming, and a separate run button for the operating mode. Internal components are lo... | 02/28/2012 |
| 8117928 | Method for selecting a pipette tip and a device for implementation This invention relates to a method for selecting a plunger-cylinder tip of a pipette and a device for carrying out the method. In the method, the dose size is entered into the control electronics of the pipetting device; the dose size is stored in the control electr... | 02/21/2012 |
| 8028591 | System and method for selective retrieval of support beads Systems and methods are provided that can include a storage and retrieval robot operating under program control to extract a selective number of support beads from a storage or retainment region, for dispensing to titer wells or other vessels for assays and other pu... | 10/04/2011 |
| 8028592 | Electronic metering apparatus for metering liquids An electronic metering apparatus for metering liquids, with a longitudinal, handleable housing, a drive, arranged in the housing, with an electric motor, at least one displacer device, arranged in the housing or being capable to be arranged on the same, with a displ... | 10/04/2011 |
| 7819030 | Hybrid manual-electronic pipette A hybrid manual-electronic pipette combines a manually driven piston with real-time electronic measurement of liquid volume and piston displacement while compensating for both pipette-specific and pipette model-specific variations. The hybrid nature of the pipette f... | 10/26/2010 |
| 7788986 | Hybrid manual-electronic pipette A hybrid manual-electronic pipette combines a manually driven piston with real-time electronic measurement of liquid volume and piston displacement while compensating for both pipette-specific and pipette model-specific variations. The hybrid nature of the pipette f... | 09/07/2010 |
| 7726212 | Hybrid manual-electronic pipette A hybrid manual-electronic pipette combines a manually driven piston with real-time electronic measurement of liquid volume and piston displacement while compensating for both pipette-specific and pipette model-specific variations. The hybrid nature of the pipette f... | 06/01/2010 |
| 7673531 | Multivolume pipette A multivolume pipette is provided. In an exemplary embodiment, the multivolume pipette includes a pipette body, a piston disposed within the pipette body, a first chamber, a second chamber, and a valve. The first chamber and the second chamber are defined at least i... | 03/09/2010 |
| 7673532 | Pipetting device Pipetting device for metering liquids comprising a piston actuating rod, at least one receiver for a piston head arranged on one end of the piston actuating rod and which is defined by an abutment surface for the piston head in the axial direction of the piston actu... | 03/09/2010 |
| 7600440 | Air displacement apparatus for use with a fluid transfer device A liquid sealed air displacement apparatus may be used in a fluid transfer device to transfer volumes of fluid. The air displacement apparatus may include a piston and a cylinder defining a displacement chamber for receiving the piston. The air displacement apparatu... | 10/13/2009 |
| 7574929 | Controllable pipette The invention relates to a controllable pipette comprising a piston actuated by a motor, a control system allowing actuation of the piston according to a given pipetting function consisting of several steps, setting keys (7, 8) for selecting the desired pipet... | 08/18/2009 |
| 7413711 | System for dispensing a precise amount of fluid A dispensing system delivers a precise amount of fluid for biological or chemical processing and/or analysis. Dispensing means moves the fluid. The dispensing means is operated by a pneumatic force. Connection means delivers the fluid to the desired location. An act... | 08/19/2008 |
| 7402286 | Capillary pins for high-efficiency microarray printing device This invention provides improved components (e.g. array “pins”, print head, substrate platen, print head platen, and the like) for microarray printing devices as well as microarray printing devices incorporating such components. In one embodiment, this invention... | 07/22/2008 |
| 7378058 | Method and apparatus for modifying pressure within a fluid dispenser A fluid dispenser useful in methods and apparatuses for automated biological reaction systems including a barrel, a coupler, a piston associated with the barrel, and a sealing surface that seals the inner diameter against fluid flow at the lower extent of the piston... | 05/27/2008 |
| 7373848 | Hand-held pipette comprising at least one track and one brush for displaying a volume value to be sampled The hand-held pipette comprises at least one track having increments, at least one brush, and a register area arranged to come into contact with each brush after it has traveled a predetermined number of increments. ... | 05/20/2008 |
| 7361509 | Dynamic metered fluid volume determination method and related apparatus A method for dynamically determining the volume of a liquid dispensed by a metering system, the metering system including a metering pump, a pump motor, a sensor, and a conduit interconnecting the pump and a metering probe. The method includes the steps of aspiratin... | 04/22/2008 |
| 7335337 | Ergonomic pipette tip and adapters An ergonomically designed pipette tip that can be securely mounted to a barrel of a pipetter yet is designed to substantially reduce the axial force necessary to install and eject the pipette tip from the pipetter. The ergonomic pipette tip includes molded-in expans... | 02/26/2008 |
| 7320260 | Pipetting device with a displacement device and a drive device releasably connected therewith Pipetting device with a displacement device with a displacement chamber with a displaceable limiter, a attachment for connecting to a pipette tip and a connecting channel between the displacement chamber and the free end of the attachment, a drive device for driving... | 01/22/2008 |
| 7285422 | Systems and methods for preparing and analyzing low volume analyte array elements The invention provides methods for dispensing tools that can be employed to generate multi-element arrays of sample material on a substrate surface. The substrates surfaces can be flat or geometrically altered to include wells of receiving material. The tool can dis... | 10/23/2007 |
| 7270789 | Pipettor head having standpipes open at their tops to a pressure/vacuum chamber and method In a preferred embodiment, a pipettor head, including: a body; one or more solenoid valves disposed in the body; each one or more solenoid valves having an outlet at a lower end and an inlet at an upper end; each one or more solenoid valves having an outlet attached... | 09/18/2007 |
| 7198893 | DNA diagnostics based on mass spectrometry Fast and highly accurate mass spectrometry-based processes for detecting a particular nucleic acid sequence in a biological sample are provided. Depending on the sequence to be detected, the processes can be used, for example, to diagnose a genetic disease or chromo... | 04/03/2007 |
| 7185551 | Pipetting module An air-filled pipette for accurately metering small and large volumes of fluid samples is provided. The pipette has dual resolution capability such that the pipette can accurately aspirate a wide range of sample volumes and deliver them contact-free (touchless). The... | 03/06/2007 |
| 7178415 | Dual-opening sample containers, fluid sampling device and method of using same A fluid sampling device for use with dual-opening sample containers includes attachment members holding open end seals of the sample container that are urged to a closed position by an elastic member. The elastic member is normally within the container. The sampling... | 02/20/2007 |
| 7178414 | Automation of liquid phase microextraction A method and apparatus for automatically performing liquid microextraction on liquid samples includes the steps of controlling movement of a syringe between a cleaning station, a sample station containing a plurality of discrete sample vials and an instrument inject... | 02/20/2007 |
| 7175812 | Automatic sampler and needle for the same The surface of a needle for collecting samples is coated with a coating material lower in chemical activity than a base metal of the needle. More specifically, the surface of the needle may be coated with a layer of gold or platinum. Alternatively, the surface of th... | 02/13/2007 |
| 7171863 | Transfer unit and automatic analyzing apparatus having such transfer unit A transfer unit for transferring members such as reaction vessels having an upper end opening or dispensing tips or the like includes at least one arm pivotally movable about a shaft and a holder mounted on the arm for detachably supporting the member to be transfer... | 02/06/2007 |
| 7159740 | Method and apparatus for parallel dispensing of defined volumes of solid particles A sample preparation system provides an automated process that dispenses appropriate amounts of solid material into wells of a microtiter plate for mixing into a suspension. The system utilizes an array of hollow tubes that are lowered into a particle reservoir such... | 01/09/2007 |
| 7146867 | Proportioning device A proportioning device, comprising a manually operable actuating device, a sensor associated with the actuating device for detecting a force manually exerted on the actuating device, an electric driving motor, an electric control connected to the sensor and electric... | 12/12/2006 |
| 7132519 | Releasable nonvolatile mass-label molecules Releasable tag reagents for use in the detection and analysis of target molecules, particular in mass spectrometric analyses are provided. Also provided are methods of detection that employ releasable tag reagents. ... | 11/07/2006 |
| 7105130 | Adjustable pipette A pipette includes a housing defining a suction chamber. A piston is configured to move in the suction chamber. A first retainer mechanism includes a first threading configured to limit a motion of the piston in the suction chamber. A second retainer mechanism inclu... | 09/12/2006 |
| 7093507 | Pipette control arrangement A pipette control arrangement consists of a housing assembly adapted for operatively housing a pump assembly and for operatively connecting a pipette to the pump assembly via a flexible air tube. The pump assembly is adapted to independently accommodate a plurality ... | 08/22/2006 |
| 7077018 | Cleanable volume displacement pipetter A volume displacement pipette that includes a channel within the piston. The channel allows for cleaning fluids to be continuously run through the pipette tip for cleaning the tip. One end of the channel may be closed during normal operation of the pipette. Multiple... | 07/18/2006 |
| 6982063 | Automated pipetting system A highly automated, high volume multichannel pipetting system which transfers liquid from mother plates to daughter plates, or from a fill station to daughter plates. The mother plates are stacked in one set of stacker assemblies, while the empty daughter plates are... | 01/03/2006 |
| 6977062 | Automatic pipette identification Mechanisms are provided for automatically removing tips from a pipette nozzle and/or for detecting the type of tip mounted to the nozzle. For detipping, mechanical energy is stored when the tip is mounted to the nozzle and is released when the tip is to be removed t... | 12/20/2005 |
| 6973845 | Low insertion force tip/mandrel A pipette assembly for automatic pipetting machines including a stepped mandrel and tip for providing a minimum contact seal between the pipette tip and mandrel. The mandrel includes a first cylindrical portion with a first exterior diameter and a second cylindrical... | 12/13/2005 |
| 6968749 | Portable automated pipette A portable automated pipette includes a linear actuator, a flywheel, an optical coupler and a control circuit. The linear actuator has a step motor and is connected to a control circuit. The step motor has a rotor and is connected to a flywheel. The flywheel include... | 11/29/2005 |
| 6967004 | Pipette with improved pipette tip and mounting shaft A pipette tip and mounting shaft combination in an air displacement pipette, the combination comprising a pipette tip mounting shaft having a radially stepped exterior comprising adjacent substantially cylindrical portions of different diameter and an annular sealin... | 11/22/2005 |
| 6959615 | Sample collection and processing device A sample processing device [700] comprises an elongated body [101] with a septum seal [109] on one end and a drip tube [731] on the second end. A small-diameter through-chamber [103] in the body provides a receiving and alignment c... | 11/01/2005 |
| 6945128 | Fluid dispenser A method and apparatus for an automated biological reaction system is provided. In the processing of a biological reaction system, there is a need for consistently placing an amount of fluid on a slide. In order to accomplish this, several methods are used including... | 09/20/2005 |
| 6926867 | Pipette piston seal assembly A piston seal assembly for a pipette includes an O-ring having radially inner and outer surfaces and axially separated first and second surfaces. A seal includes a radially extending rim portion having axially separated first and second surfaces and an axially exten... | 08/09/2005 |
