Patents Assigned to Oregon State University
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Patent number: 5354555Abstract: Subunit vaccines and their use for immunizing fish against infection by viruses are disclosed. In particular, plasmid pG8 is constructed by joining, with the plasmid pUC8, DNA which encodes the glycoprotein of infectious hematopoietic necrosis virus (IHNV). E. coli cells are transformed by pG8, whereby pure viral antigen is produced to provide a vaccine for the control of IHNV in fish.Type: GrantFiled: March 8, 1993Date of Patent: October 11, 1994Assignee: State of Oregon Acting By and Through The State Board of Higher Education on Behalf of Oregon State UniversityInventor: Jo-Ann C. Leong
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Patent number: 5340983Abstract: Methods and apparatuses are disclosed for mass-analysis of a sample for particular analytes of interest. An electron monochromator is coupled to any of a number of different types of mass analyzer and used to generate slow electrons used to produce ions of target molecules for mass analysis. The electrons have a narrow energy bandwidth and high intensity, even at nearly zero kinetic energy levels. The median energy level of the electrons can be preset, permitting selection of specific target molecules to be ionized. Both positive and negative-ion mass analysis can be performed. Electron-capture negative-ion mass spectrometry is particularly enhanced, with a sensitivity about three orders of magnitude greater than in results obtained using conventional negative-ion equipment. Also, a buffer gas is eliminated, allowing substantial reductions in negative-ion equipment size, weight, and energy consumption.Type: GrantFiled: May 18, 1992Date of Patent: August 23, 1994Assignee: The State of Oregon acting by and through the State Board of Higher Education on behalf of Oregon State UniversityInventors: Max L. Deinzer, James A. Laramee
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Patent number: 5324739Abstract: Isomers of a cytotoxic compound isolated and purified from a marine cyanobacterium Lyngbya majuscula are disclosed. The isomers termed Curacin A and Curacin B exhibits substantial biological activity against proliferating cells. The Curacin A and Curacin B isomers appear to be antimitotics. Methods for using the isomers are also disclosed.Type: GrantFiled: October 7, 1993Date of Patent: June 28, 1994Assignee: State of Oregon Acting by and Through the State Board of Higher Education on Behalf of Oregon State UniversityInventors: William H. Gerwick, Philip J. Proteau, Dale G. Nagle
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Patent number: 5322559Abstract: Compounds that satisfy the general formula A.sub.1-Y.sup.4+ A.sub.Y.sup.1+ A.sub.Y.sup.3+ V.sub.2-X P.sub.X O.sub.7 exhibit isotropic NTE behavior in the range of normal ambient temperatures. Y is from about 0.0 to about 0.4, and more preferably is about 0.2. X is from about 0.6 to about 1.4, and is more preferably about 1. Particularly suitable NTE compounds have X about 1 and Y about 0. A.sup.4+ is selected from the group consisting of Hf, Zr, Zr.sub.a M.sub.b, Hf.sub.a M.sub.b and mixtures thereof wherein a plus b equals one and M is selected from the group consisting of Ti, Ce, Th, U, Mo, Pt, Pb, Sn, Ge and Si. More preferably, A.sup.4+ is selected from the group consisting of Hf and Zr. A.sup.1+ is selected from the group consisting of the alkali earth metals, and A.sup.3+ is selected from the group consisting of the rare earth metals. Such NTE materials exhibit isotropic negative linear expansion at a temperature below about 100.degree. C.Type: GrantFiled: May 11, 1993Date of Patent: June 21, 1994Assignee: State of Oregon Acting by and through the State Board of Higher Education on Behalf of Oregon State UniversityInventor: Arthur W. Sleight
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Patent number: 5322799Abstract: A device for detecting substances in a liquid film by measuring chemiluminescence, fluorescence or absorption using techniques such as flow-injection analysis schemes, liquid chromatographies, and gas chromatographies. The device can be used as a micro-volume mixing or reaction substrate for a variety of measurements. The device comprises at least two film supports that are separated by a small gap. One or more applicators are positioned along the gap to supply fluids to the gap. The applicators are positioned near the gap at a spacing that is near the necking length of the fluid supplied by the applicator. A thin, continuous film of the mixture of fluids to be examined is supported in the gap between the film supports. The film extends through the examining chamber and through drop and overflow detection probes. Also disclosed is a mixing or reaction chamber which comprises an enclosable mainframe into which a plurality of applicators are butted near a gap defined between two film supports.Type: GrantFiled: July 23, 1991Date of Patent: June 21, 1994Assignee: The State of Oregon Acting by and through the State Board of Higher Education on Behalf of Oregon State UniversityInventors: Robert J. Miller, James D. Ingle, Jr.
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Patent number: 5304492Abstract: An apparatus that conducts in situ analyses of fluids in real time is disclosed. The apparatus comprises bifurcated optic fibers, a pulsed light source, a light detector, a water-tight pressure case that houses the pulsed light source and the light detector, and a flow-through cell that receives one end of each bifurcated optic fiber. The flow-through cell may comprise a plurality of attached tube sections that define a volume which acts as a passageway for conducting fluids. One or more sections of the flow-through cell may be adapted to introduce a reagent into fluid flowing through the cell. Sections of the cell may contain potassium periodate and N,N-diethylaniline that are released into a fluid flowing through the passageway, enabling the spectrophotometer to analyze manganese (II) concentrations by monitoring the decrease in fluorescence accompanying the oxidation of DEA to 2 DEA'. The fluid may also be analyzed by measuring reflectance, absorption, turbidity, and fluorescence.Type: GrantFiled: November 26, 1991Date of Patent: April 19, 1994Assignee: The State of Oregon Acting by and through the State Board of Higher Education on Behalf of Oregon State UniversityInventor: Gary Klinkhammer
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Patent number: 5260061Abstract: A metabolite material of propionibacteria is added to a food product to inhibit the growth of yeast. The metabolite material is produced by growing propionibacteria cells in a liquid growth medium to produce a mixture containing the metabolite material. The mixture can be concentrated and added to a food product as a concentrated liquid or powder. The metabolite material added to a food product may contain viable cells of propionibacteria.Type: GrantFiled: March 16, 1992Date of Patent: November 9, 1993Assignee: The State of Oregon Acting by and through the State Board of Higher Education on Behalf of Oregon State UniversityInventors: James W. Ayres, William E. Sandine, George H. Weber
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Patent number: 5239251Abstract: An AC variable speed drive (VSD) system having a brushless doubly-fed motor receives power from an electric power grid at a system frequency of the grid and drives a mechanical load. The motor has a rotor with rotor windings and a stator with stator windings comprising first and second polyphase stator systems. The first stator system receives power from the grid at the system frequency. A sensor senses a parameter of the received power by the drive and produces a corresponding power sensor signal. A VSD controller receives and processes the power sensor signal and a reference signal which has been established according to a desired motor operation strategy, and generates therefrom a controller signal. A converter, such as a power electronic converter, receives and converts power from a converter powThis invention was made with government support under Grant No. 79-85BP24332, awarded by the Bonneville Power Administration. The United States government has certain rights in this invention.Type: GrantFiled: August 7, 1991Date of Patent: August 24, 1993Assignee: The State of Oregon Acting by and through the State Board of Higher Education on Behalf of Oregon State UniversityInventor: Hian K. Lauw
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Patent number: 5212904Abstract: The fertilizing apparatus comprises a diffusion member having a porous member associated with it to retain fertilizer inside a compartment defined by the diffusion member. The diffusion member provides a diffusion pathway that is protected from gravitational water flow and rapid temperature fluctuation. The compartment is filled with fertilizer and inserted into growth media adjacent a plant's root system so that the diffusion pathway is substantially occupied by the plant growth media. A plurality of diffusion members, each member having a different length, may be used to establish diffusion times for specific fertilizer formulations. The fertilizing apparatus can be adapted for use with a closed, insulated pallet system for producing container-grown plants.Type: GrantFiled: August 23, 1991Date of Patent: May 25, 1993Assignee: State of Oregon acting by and through the State Board of Higher Education on behalf of Oregon State UniversityInventors: James L. Green, Bruce A. Briggs, Doris L. Briggs
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Patent number: 5202891Abstract: Nonlinear optical materials having the general formula Ca.sub.1.40-X M.sub.X V.sub.0.98.+-.0.05 O.sub.4.00.+-.0.08 wherein X is 0.07 to 0.43 and M is selected from the group consisting of Bi, La, Ce, Y, Pm, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sc, and mixtures thereof are described. Compositions satisfying this formula belong to the space group R3c wherein a=b=10.8.+-.0.1 .ANG., and c=38.0.+-.0.3 .ANG.. These NLO compositions are capable of doubling the frequency of light at about 0.1 to about 3.3 times the efficiency of KH.sub.2 PO.sub.4 (KDP). No damage to the NLO material is observed when they are exposed to high-power lasers.Type: GrantFiled: December 23, 1991Date of Patent: April 13, 1993Assignee: State of Oregon acting by and through the State Board of Higher Education on behalf of Oregon State UniversityInventors: Arthur W. Sleight, Jinfan Huang
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Patent number: 5176028Abstract: An adhesive is applied to overlapping portions of a two-part test sample located between opposing press heads of the bond testing device. The press heads then press together the overlapping portions for a specific period of time while heating the test sample to a preselected temperature. The device precisely maintains the temperature while bonding the sample at a preselected pressure. A load cell measures the shear force required to separate the bonded test piece.Type: GrantFiled: October 1, 1990Date of Patent: January 5, 1993Assignee: The State of Oregon acting by and through the Oregon State Board of Higher Education on behalf of Oregon State UniversityInventor: Philip E. Humphrey
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Patent number: 5165925Abstract: A vaccine for simultaneously immunizing large numbers of fish against infection by InfecThis invention was made with government support under the following grant numbers awarded by the U.S. Department of Commerce, National Oceanic and Atmospheric Administration, Science and Education Administration: NA81AA-D-00086 (1982-85, Recombinant DNA Technology in Aquaculture, Project No. R/FSD-9, Oregon State University); NA85AA-D-SG-095 (1985-87, Development of a Subunit Vaccine for IPNV, Project No. R/FSD-11, Oregon State University); and NA85AA-D-SG-095 (1987-89, Control of Virus Diseases in Fish, Project No. R/FSD-13, Oregon State University). The government has certain rights in this invention.Type: GrantFiled: May 2, 1989Date of Patent: November 24, 1992Assignee: State of Oregon Acting by and Through the State Board of Higher Education on behalf of Oregon State UniversityInventor: Jo-ann C. Leong
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Patent number: 5162674Abstract: In integrated circuitry having both analog and digital circuits fabricated on the same substrate, switching transients produced by the digital circuitry can propagate through the substrate and induce deleterious effects in the associated analog circuitry. Such switching transients are greatly minimized by the disclosed family of CMOS logic circuits in which a constant DC bias current is steered to change logic states.Type: GrantFiled: May 10, 1991Date of Patent: November 10, 1992Assignee: State of Oregon Acting by and Through the State Board of Higher Education on Behalf of Oregon State UniversityInventors: David J. Allstot, Guojin Liang, Howard C. Yang
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Patent number: 5158497Abstract: An enclosure for the controlled breeding of honey bees has a diffusely illuminated upper dome section. The dome is illuminated either by upwardly directed light reflected or emitted from a lower portion of the enclosure, or by an external source diffused through the dome. A queen bee is tethered in the center of the enclosure below the dome.Type: GrantFiled: February 7, 1991Date of Patent: October 27, 1992Assignee: The State of Oregon Acting by and Through the Oregon State Board of Higher Education on Behalf of Oregon State UniversityInventors: Philippe A. Rossignol, Lynn A. Royce, Beryl A. Stringer
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Patent number: 5149992Abstract: In integrated circuitry having both analog and digital circuits fabricated on the same substrate, switching transients produced by the digital circuitry can propagate through the substrate and induce deleterious effects in the associated analog circuitry. Such switching transients are greatly minimized by a CMOS source-coupled current-steering differential logic topology. In the preferred embodiment, gain and level shifting functions are merged, and connections to the power bus are made through constant current sources.Type: GrantFiled: April 30, 1991Date of Patent: September 22, 1992Assignee: The State of Oregon Acting by and Through the State Board of Higher Education on Behalf of Oregon State UniversityInventors: David J. Allstot, Sayfe Kiasei
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Patent number: 5139954Abstract: The preparation and use of nucleic acid promoter fragments homologous to the Em gene of wheat to bring the expression of selected genes in plants under external control are described. The Em promoter fragment is responsive to abscisic acid (ABA) and other compounds possessing ABA-like activity. Through transformation of protoplasts and plant cells with recombinant DNA constructs incorporating such promoter fragments, operably linked selected genes are expressed in response to ABA and compounds possessing ABA-like activity. The application of such promoter fragments and constructs to transient assay systems to predict the likelihood of stable transformation in plants is disclosed.Type: GrantFiled: May 18, 1990Date of Patent: August 18, 1992Assignees: E. I. Du Pont de Nemours and Company, Oregon State UniversityInventors: James C. Litts, William R. Marcotte, Jr., Ralph S. Quatrano
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Patent number: 5117581Abstract: The system includes an efficient, closed irrigation system in conjunction with insulating components for minimizing the harmful effects of extreme changes in ambient temperature, moisture and chemical concentrations in plant containers. Mechanisms are provided for permitting a single pallet, or a single plant within a pallet, to be readily removed from an integrated plurality of pallets without interfering with irrigation of the plants that are contained in the remaining pallets.Type: GrantFiled: December 4, 1989Date of Patent: June 2, 1992Assignee: State of Oregon acting by and through the Oregon State Board of Higher Education on behalf of Oregon State UniversitiesInventors: James L. Green, Robert J. Schnekenburger
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Patent number: 5116506Abstract: A gas permeable membrane divides a reactor vessel into a liquid compartment and a gas compartment. A biofilm is grown on the gas permeable membrane on the liquid side of the membrane. Teh gas permeable membrane is supported by the structure of the membrane itself. The biofilm is chosen from bacteria to degrade cetain pollutants by means of anaerobic fermentation, aerobic heterotrophic oxidation, dehalogenation, and hydrocarbon oxidation. This is accomplished by means of oxygen and alternate gases (i.e., methane) through the gas permeable membrane to certain bacteria growing on the liquid side of the gas permeable membrane.Type: GrantFiled: February 11, 1991Date of Patent: May 26, 1992Assignee: Oregon State UniversityInventors: Kenneth J. Williamson, Sandra Woods, Stuart E. Strand
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Patent number: 5107530Abstract: A reliable shutter position indicator for an x-ray diffractometer utilizes an optical shutter position sensor for detecting the position of a shutter of the x-ray diffractometer. In one embodiment, a pair of optical isolators are utilized with an arm coupled to the shutter shifting to a position to interrupt a light beam of the optical isolators when the shutter is in either the open or closed position. The controller of the x-ray diffractometer then compares the detected shutter position with the expected shutter position to determine whether a shutter error is present.Type: GrantFiled: June 6, 1991Date of Patent: April 21, 1992Assignee: The State of Oregon Acting by and Through the Oregon State Board of Higher Education on Behalf of Oregon State UniversityInventor: Gerald L. Allison
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Patent number: 5096718Abstract: A metabolite material of propionibacteria, having a metabolite of molecular weight greater than 300, is added to a food product to inhibit the growth of gram negative psychotropic bacteria, yeast, mold, gram positive bacteria, or Listeria. The metabolite material may contain less than 0.02% propionic acid such that there is insufficient propionic acid per se to inhibit microbial growth. The metabolite material is produced by growing propionibacteria cells in a liquid growth medium to produce a mixture containing the metabolite material. The mixture can be concentrated and added to a food product as a concentrated liquid or powder. The metabolite material added to a food product may contain viable cells of propionibacteria.Type: GrantFiled: May 9, 1988Date of Patent: March 17, 1992Assignee: The State of Oregon acting by and through the Oregon State Board of Higher Education on behalf of Oregon State UniversityInventors: James W. Ayres, William E. Sandine, George H. Weber