Method and device for long-term delivery of drugs
The present invention is a device and method for the long-term local delivery of a therapeutic agent to a tissue or organ. The present invention includes a device comprising a container with a biodegr... Read More
Inventors: Lee, Clarence C.;, Assignee: C.R. Bard, Inc. (Murray Hill, NJ) |
Micromachined fluid handling apparatus with filter
What is claimed is: 1. A micromachined fluid handling apparatus comprising a micromachined filter, and a micromachined fluid handling device; said fluid handling apparatus further comprising a substra... Read More
Inventors: Saaski, Elric W.; Lawrence, Dale M.;, Assignee: Research International, Inc. (Woodinville, WA) |
Microfabricated particle thin film filter and method of making it
The present invention is directed to a filter comprising a first thin film structure having openings therethrough, and a second thin film structure positioned relative to the first thin film structure... Read More
Inventors: Keller, Christopher G.; Ferrari, Mauro;, Assignee: The Regents of the University of California (Oakland, CA) |
Lever clamp
Accordingly, it is a primary object of the present invention to provide a clamp for firmly and reversibly attaching items such as sign holders, pencil sharpeners, trays, lamps and dispensers to shelve... Read More
Inventors: Stuart, Timothy Scott;, Assignee: Stuart Shelving, LLC (Potomac, MD) |
Zero volume cell
Apparatus and methods are provided for measuring, in an electrochemical cell, an analyte in a fluid medium. The apparatus employs a cell having a working and a controlling electrode and, preferably, a... Read More
Inventors: Parce, John W.; Zuk, Robert F.;, Assignee: Molecular Devices Corporation (Menlo Park, CA) |
Method for releasing RNA and DNA from cells
OF THE INVENTION In a broad aspect, the method of the present invention is based on the surprising discovery that cells in solution with small beads in a container, when exposed to sonication in, for... Read More
Inventors: Murphy, Kathleen A.; Epstein, Barry D.; Rosen, Ira G.; Dean, Elizabeth D.;, Assignee: Gen-Probe Incorporated (San Diego, CA) |
Method of producing a sealing means in a microfluidic structure and a microfluidic structure comprising such sealing means
The object of the present invention is to provide a solution to this sealing problem in order to permit inter alia a two-part microfluidic system device of the above mentioned type to be produced in a... Read More
Inventors: Ohman, Ove;, Assignee: Pharmacia Biosensor AB (Uppsala, SE) |
Silicon tetrahydrazide for purification of DNA
The invention provides the monomer unit composition: ##STR3## wherein T is HN--NH.sub.2 or Si(OH).sub.3, Y is H, R is HN--NH.sub.2, and X is HN--NH.sub.2, and repeating units of the composition compr... Read More
Inventors: Woodard, Daniel L.; Howard, Adriann J.;, Assignee: Becton, Dickinson and Company (Franklin Lakes, NJ) |
DNA purification by solid phase extraction using a hydroxide-washed glass fiber membrane
OF THE INVENTION The present invention relates to a modified glass fiber membrane which exhibits sufficient hydrophilicity and sufficient electropositivity to bind DNA from a suspension of cellular c... Read More
Inventors: Woodard, Daniel L.; Howard, Adriann J.; Down, James A.;, Assignee: Becton Dickinson and Company (Franklin Lakes, NJ) |
Microfabricated diffusion-based chemical sensor
Microfluidic devices allow one to take advantage of diffusion as a rapid separation mechanism. Flow behavior in microstructures differs significantly from that in the macroscopic world. Due to extreme... Read More
Inventors: Weigl, Bernhard H.; Yager, Paul; Brody, James P.; Holl, Mark R.; Kenny, Margaret; Schutte, David; Hixson, Gregory; Zebert, M. Diane; Kamholz, Andrew; Wu, Caicai; Altendorf, Eric;, Assignee: University of Washington (Seattle, WA) |
Microfluidic devices incorporating improved channel geometries
OF THE INVENTION I. General The present invention generally provides microfluidic devices which incorporate improved channel and reservoir geometries, as well as methods of using these devices in the... Read More
Inventors: Dubrow, Robert S.; Kennedy, Colin B.; Bousse, Luc J.;, Assignee: Caliper Technologies Corp. (Mountain View, CA) |
Multi-array, multi-specific electrochemiluminescence testing
OF THE INVENTION Accordingly, the invention includes in a broad aspect cassettes for conducting a plurality of electrochemiluminescence assays. The cassettes are formed of supports having thereon a p... Read More
Inventors: Wohlstadter, Jacob; Wilbur, James; Sigal, George; Martin, Mark; Guo, Liang-Hong; Fischer, Alan; Leland, Jon;, Assignee: Meso Scale Technologies, LLC. (Gaithersburg, MD) |
Separation columns and methods for manufacturing the improved separation columns
In one aspect, the invention relates to a separation column, which is used in a separation process. The separation column includes multiple collocated monolith support structures and interconnected ch... Read More
Inventors: Regnier, Fred E.; He, Bing;, Assignee: Purdue Research Corporation (West Lafayette, IN) |
Apparatus and method for chemical processing
The present invention provides an apparatus and method for chemical processing, comprising apparatus for conveying pre-cut pipette tubes to a position under a set of aspiration tubes and means for mou... Read More
Inventors: Juranas, David L.;, Assignee: TECAN Trading AG (Mannedorf, CH) |
Process for the production of silicic acid heteropolycondensates useful as membranes and adsorbents
What is claimed is: 1. A process for the production of a silicic acid heteropolycondensate porous adsorbent, comprising: condensing (a) at least one hydrolysable silicic acid derivative corresponding ... Read More
Inventors: Scholze, Horst; Schmidt, Helmut;, Assignee: Fraunhofer-Gesellschaft (Munich, DE) |
Separation of a monosaccharide with mixed matrix membranes
We claim as our invention: 1. A process for separating a monosaccharide from an aqueous solution comprising said monosaccharide and a second component comprising a polysaccharide by contacting at sepa... Read More
Inventors: Kulprathipanja, Santi; Funk, Edward W.; Kulkarni, Sudhir S.; Chang, Y. Alice;, Assignee: UOP Inc. (Des Plaines, IL) |
Crystal growth process for preparing inorganic dynamic membranes
I claim: 1. The process for forming a composite membrane comprising a porous inorganic substrate and an integral particle porous film directly bound only to one surface of said substrate, said particl... Read More
Inventors: Barone, Joseph P.;, Assignee: Millipore Corporation (Bedford, MA) |
Zinc-aluminum-phosphorus-silicon-oxide molecular sieve compositions
OF THE INVENTION The instant invention relates to a new class of three-dimensional microporous crystalline molecular sieves having a crystal framework structures of ZnO.sub.2.sup.-2, AlO.sub.2.sup.-,... Read More
Inventors: Lok, Brent M. T.; Vail, Lawrence D.; Flanigen, Edith M.;, Assignee: UOP (Des Plaines, IL) |
Hydrophilic microporous membrane
The present invention relates to a polymeric membrane having controlled pore size that is prepared in an oil in water system where the water is the continuous phase and the oil phase contains the poly... Read More
Inventors: Wang, Ying;, Assignee: International Applied Sciences, Inc. (Pinebrook, NJ) |
Method for forming a semi-permeable strip
We claim as our invention: 1. A continuous method for forming a member suitable for stacking and for separating the constituents of a fluid feed material which can be passed over the member, which com... Read More
Inventors: Hunter, Jack A.; Anderson, Kenneth E.;, Assignee: Universal Oil Products Company (Des Plaines, IL) |
Process for producing reinforced microporous membrane
OF THE INVENTION The inner and outer membranes of the reinforced laminated filtration membrane of this invention are produced from an organic polymeric microporous membrane. Such membranes are well k... Read More
Inventors: Barnes, Jr., Robert G.; Meyering, Mark T.;, Assignee: |
Process for producing supported celluosic membranes and products
OF THE INVENTION The supported microporous cellulosic filter according to the present invention comprises an integral support web and a cellulosic polymer coating on either side of the support web. T... Read More
Inventors: Johnson, James S.;, Assignee: Micron Separations, Inc. (Westborough, MA) |
Asymmetric porous polyamide membranes
This invention provides an asymmetric, porous polyamide membrane permeable to fluid flow comprising: (A) a porous skin layer, and (B) adjacent to the skin layer, an integral, porous support layer (i.e... Read More
Inventors: Dennison, Kathleen A.; Kolcinski, Bruce E.; Krishnan, Subramanian; Russell, Patrise M.;, Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN) |
Supported microporous filtration membrane and method of using same
The present invention provides a supported microporous filtration membrane comprising a porous nonwoven fibrous support material having first and second sides, and a continuous microporous membrane wi... Read More
Inventors: Degen, Peter J.;, Assignee: Pall Corporation (East Hills, NY) |
Multiple layer coating method
The system of the present invention coats a plurality of simultaneously applied layered coating fluids onto a substrate. The substrate moves along a path through a coating station, and a plurality of ... Read More
Inventors: Leonard, William K.;, Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN) |
Sizing table employing variable pitch augur
OF THE PREFERRED EMBODIMENT Referring to FIG. 2, a sizing table 10 includes a frame 12 which supports a plurality of spindles 11. Three of the spindles support tapered conical rollers 14a, 14b and 14... Read More
Inventors: Mobley, John E.;, Assignee: Key Technology, Inc. (Walla Walla, WA) |
Apparatus and process for membrane filtration
It is therefore an object of the present invention to provide an improved apparatus for the membrane filtration of a liquid. It is also an object of the present invention to provide such an improved a... Read More
Inventors: Saupe, Wolfram;, Assignee: Hoechst Aktiengesellschaft (Frankfurt am Main, DT) |
Apparatus and method for the autotransfusion of blood
In accordance with the primary purpose of the present invention, there is provided a high speed autotransfusion filter for rapid processing, thorough cleansing, and returning of a patient's blood duri... Read More
Inventors: Gordon, Lucas S.;, Assignee: Biodynamics, Inc. (Houston, TX) |
Filter assembly
It is an object of the present invention to provide an improved filter assembly which overcomes, or at least alleviates, the problems of known filter assemblies. With that object in mind, the present ... Read More
Inventors: Sussich, Marino R.; Sussich, Paul J.;, Assignee: Kagisho Pty. Ltd. (Melbourne, AU) |
Filter base assembly
OF THE PREFERRED EMBODIMENT With reference to the drawings wherein like numerals represent like parts throughout the several figures, a filter assembly in accordance with the present invention is gen... Read More
Inventors: Janik, Leon P.; Zeiner, Robert W.;, Assignee: Stanadyne Automotive Corp. (Windsor, CT) |
Semiconductor manufacture 
