Patents Assigned to Foundation
  • Patent number: 5290349
    Abstract: The present invention relates to the production of high tensile strength, solvent-spun cellulose fiber which is stable in alkaline solutions. More particularly, the invention relates to a process in which cellulose is solubilized in a zinc chloride solution then extruded into a coagulation medium in which the cellulose fibers form. The fibers are removed from the coagulation medium, treated to remove the coagulation medium, stretched and recrystallized in water, thus forming the high tensile strength, solvent-spun cellulose fibers.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: March 1, 1994
    Assignee: Purdue Research Foundation, Division of Sponsored Programs
    Inventor: Li Fu Chen
  • Patent number: 5290397
    Abstract: A resist pattern on a substrate is formed using an imageable resist layer on the surface of a substrate. The imageable resist layer comprises a silicon-incorporated polystyrene-diene block copolymer having a silicon weight percent of at least about 5 percent. The imageable layer is prepared by reacting a polystyrene-diene block copolymer with a silicon-containing compound in the presence of a platinum catalyst. In a preferred embodiment, the poly(styrene)-diene block copolymers are hydrosilylated by hydrosiloxanes using a platinum-divinyl tetramethyl disiloxane catalyst.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: March 1, 1994
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Christopher K. Ober, Allen H. Gabor, Eric A. Lehner, Guoping Mao, Lizabeth A. Schneggenburger
  • Patent number: 5290749
    Abstract: A method of selectively inhibiting growth of unwanted plants in a plot of soil is provided comprising the application of a plant protein hydrolysate to the plot of soil, prior to emergence of the unwanted plants and at a concentration of application which inhibits the growth of the unwanted plants.
    Type: Grant
    Filed: August 3, 1993
    Date of Patent: March 1, 1994
    Assignees: Iowa State University Research Foundation, Inc., Grain Processing Corporation
    Inventors: Nick E. Christians, John T. Garbutt, Dianna Liu
  • Patent number: 5288870
    Abstract: The present invention relates to a process for the preparation of specifically labelled TTX of high specific activity. In the present process, TTX is oxidized by use of the Pfitzer-Moffat method or Fenton's reagent and the aldehyde obtained is hydrated. The hydrated aldehyde is reduced with alkali metal o alkaline earth metal borotritide. The radioactive TTX so obtained, quite surprisingly, has a specific activity many times greater than previously prepared radioactive TTX.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: February 22, 1994
    Assignee: Research Foundation of the State University of New York
    Inventors: Chien-yuan Kao, Biqi Wu
  • Patent number: 5288621
    Abstract: Disclosed for the first time is the isolation, sequence, and expression cloning of a cDNA encoding for pituitary thyrotropin-releasing hormone receptor, as well as the amino acid sequence for the receptor per se.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: February 22, 1994
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Marvin C. Gershengorn, Richard E. Straub
  • Patent number: 5288634
    Abstract: This invention relates in part to the use of osmoticants to provide desiccation tolerance to growth producing cells of microorganisms upon drying and reconstitution.This invention also relates in part to the discovery of liquid fermentation media permitting production of high levels of conidia of Trichoderma harzianum in liquid fermentation, and modifications to these media that produce conidia that are resistant to desiccation and that provide enhanced biocontrol efficacy.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: February 22, 1994
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Gary E. Harman, Xixuan Jin, Thomas E. Stasz, George P. Peruzzotti, A. Carl Leopold, Alan G. Taylor
  • Patent number: 5289010
    Abstract: Plasma source ion implantation is carried out within an evacuated chamber having a target, such as a semiconductor wafer, supported on a target stage, with pulses of high voltage applied to the target periodically to implant ions from a plasma into the target. The ions in the plasma are purified after formation of the plasma by passing the plasma through an ion cyclotron resonance system composed of excitation electrodes and ion collector electrodes surrounding an ion purification region, with a magnet providing a unidirectional magnetic field through the ion purification region. A radio frequency time varying electric field from the excitation electrodes drives unwanted ions having charge-to-mass ratios greater than or less than that of the desired ion species to resonance with the electric field. During resonance, the undesired ions are driven outwardly in expanding spirals until reaching the ion collector plates, where the unwanted ions are removed.
    Type: Grant
    Filed: December 8, 1992
    Date of Patent: February 22, 1994
    Assignee: Wisconsin Alumni Research Foundation
    Inventor: Juda L. Shohet
  • Patent number: 5288498
    Abstract: Compositions and methods of manufacture for producing a medicament composition capable of absorption through the mucosal tissues of the mouth, pharynx, and esophagus. The present invention relates to such compositions and methods which are useful in administering lipophilic and nonlipophilic drugs in a dose-to-effect manner such that sufficient drug is administered to produce precisely a desired effect. The invention also relates to manufacturing techniques that enable therapeutic agents to be incorporated into nondissolvable drug containment matrixes which are capable of releasing the drug within a patient's mouth. An appliance or holder is preferably attached to the drug containment matrix. Employing the present invention the drug may be introduced into the patient's bloodstream almost as fast as through injection, and much faster than using the oral administration route, while avoiding the negative aspects of both of these methods.
    Type: Grant
    Filed: September 5, 1989
    Date of Patent: February 22, 1994
    Assignee: University of Utah Research Foundation
    Inventors: Theodore H. Stanley, Brian Hague
  • Patent number: 5289407
    Abstract: In a method of high density (>10.sup.12 bits/cc) optical recording of information in a three-dimensional multilayered format, information is written in a photopolymer as submicron volume elements of altered index of refraction. The index change results from alteration of the photopolymer induced by two-photon excitation of the photo-sensitizer at the waist of a highly focused beam from a subpicosecond colliding pulse modelocked laser. Quadratic dependence of two-photon excitation on incident instantaneous intensity serves to confine crosslinking of the polymer to the focal volume; hence, bit array layers may be written with thicknesses on the order of the confocal parameter. As an example, eight well resolved bit planes can be written in a olymer film about 30 microns thick. Information written in this manner may be read with sufficient axial resolution by differential interference contrast (DIC) or confocal microscopy.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: February 22, 1994
    Assignee: Cornell Research Foundation, Inc.
    Inventors: James H. Strickler, Watt W. Webb
  • Patent number: 5288618
    Abstract: A galactomannan heteropolysaccharide is prepared by fermentation of a previously unknown microorganism, named Erwinia sp. ATCC No. 55046. The polysaccharide has valuable properties as a thickening, suspending, stabilizing and lubricating agent in aqueous systems. It has a chemical composition of mannose, galactose and galacturonic acid in the approximate molar ratio of 5:3:2. The polysaccharide can be produced in high yield and volumetric productivity from a submerged culture fermentation of a low-cost, lactose-containing whey or whey permeate medium.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: February 22, 1994
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Robert S. Hardin, James H. Flatt, Douglas C. Cameron
  • Patent number: 5288186
    Abstract: An apparatus for high-pressure waterjet assisted machining includes a drive motor, spindle and rotary cutting tool with cutting inserts. The apparatus further includes a high-pressure intensifier pump providing cutting fluid at a pressure greater than 50,000 psi. A cutting fluid conduit system in the rotary cutting tool includes a main flow channel, a distribution manifold, a plurality of radially extending feed channels and a plurality of cooperating nozzles for delivering fluid behind the cutting inserts. The cutting fluid then passes through one or more apertures in the inserts into an interface defined by the inserts of the cutting tool and a chip being cut from the workpiece.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: February 22, 1994
    Assignee: University of Kentucky Research Foundation
    Inventor: Radovan Kovacevic
  • Patent number: 5287082
    Abstract: A submicron resistor having negligible parasitic capacitance includes an isolated released beam carried on a single crystal silicon wafer. The resistor is fabricated by defining a resistor region in the substrate, doping the region to produce the desired resistivity, and etching around the region to produce a resistive island. The island is then isolated from the substrate by oxidation, and is released by removing the oxide to produce an isolated, released resistor beam.
    Type: Grant
    Filed: July 2, 1992
    Date of Patent: February 15, 1994
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Susanne C. Arney, Noel C. MacDonald, Jun J. Yao
  • Patent number: 5286996
    Abstract: A self-aligned process for fabricating high performance bipolar transistors for integrated circuits includes the formation of a collector contact and intrinsic collector region within an opening at the face of a semiconductor substrate. In particular, layers of oxide and polysilicon are formed on the surface of a substrate. An opening is then formed in both layers followed by the implantation of a buried collector region into the substrate at the exposed substrate face through the opening. Polysilicon contacts to the buried layer are then formed on the sidewalls of the opening. These contacts join with the polysilicon layer to form a collector contact. An oxide is then grown on the collector contact. A monocrystalline intrinsic collector is then formed from the exposed substrate face adjacent said collector contact. In this manner, the buried collector, collector contact and intrinsic collector are all formed in a self-aligned manner.
    Type: Grant
    Filed: December 31, 1991
    Date of Patent: February 15, 1994
    Assignee: Purdue Research Foundation
    Inventors: Gerold W. Neudeck, Rashid Bashir
  • Patent number: 5286522
    Abstract: The present method induces an oxidation-proof ferric phosphate coating on iron sulfide such as pyrite and marcasite. The method includes the steps of placing the pyrite to be treated in a reaction vessel and leaching the pyrite with a coating composition including water, an oxidizing agent and a phosphate coating agent. Examples of oxidizing agents include hydrogen peroxide, sodium hypochlorite, potassium hypochlorite and mixtures thereof. The phosphate coating agent may be potassium dihydrogen phosphate. In order to ensure the formation of the stable coating, the leaching is performed at a pH of substantially 5 and at a temperature of substantially 40.degree. C. Additionally, the oxidizing agent is maintained at a concentration of substantially 0.1% by weight of the coating composition while the concentration of the phosphate coating agent is maintained at at least substantially 10.sup.-4 M/l.
    Type: Grant
    Filed: November 19, 1992
    Date of Patent: February 15, 1994
    Assignee: University of Kentucky Research Foundation
    Inventors: V. P. Evangelou, Xiao Huang
  • Patent number: 5285769
    Abstract: An orchard heater including a base and a pulse-jet engine rotatably mounted on the base. The pulse-jet engine exhausts a heated moisture-laden exhaust stream through an exhaust tube. The exhaust stream is directed tangentially to create a torque which automatically rotates the pulse-jet and causes lateral omnidirectional dispersion of the exhaust stream. The orchard heater utilizes the energy released from the combustion process to rotate the pulse-jet engine and to vaporize and atomize water.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: February 15, 1994
    Assignee: Washington State University Research Foundation
    Inventor: Stanislaw Wojcicki
  • Patent number: 5287169
    Abstract: A method and apparatus for a contactless mode of electroreflectance (ER) which utilizes a condenser-like system, of which the front electrode is light transparent, i.e., for instance, consists of a transparent conductive coating on a transparent substrate which is separated from the sample surface by a thin layer of air. With the use of the method and apparatus of this invention, the contactless electroreflectance spectra could be measured at 300K from a number of materials including semi-insulating bulk GaAs, bulk Si, bulk Hg.sub.0.75 Cd.sub.0.25 Te, a GaAs structure with large uniform electric field and a GaAs/GaAlAs coupled double quantum well.
    Type: Grant
    Filed: March 31, 1992
    Date of Patent: February 15, 1994
    Assignee: Brooklyn College Research and Development Foundation
    Inventors: Fred H. Pollak, Xiaoming Yin
  • Patent number: 5285750
    Abstract: Preparation of chicken embryo allantoic fluids for animal health requires opening the eggshell by cutting, drilling or punching methods. Laser cutting and drilling is used as an alternative to known processes. Both CO.sub.2 and Nd:YAG lasers are employed. A focused CO.sub.2 laser beam at a power of 200 watts in conjunction with an X-Y motion table produced 25 mm diameter "clean-cuts" in eggshells with a cutting time of 0.5 seconds per egg. The material removal mechanism was vaporization. When an axicon/lens combination is used with a CO.sub.2 laser, the cutting time was further reduced to 0.2 seconds per egg and the mechanism of material removal is changed from vaporization to decomposition of the eggshell into fine powders. Small holes, typical diameters of 0.5 mm to 1 mm are generated in the eggshell using the pulsed Nd:YAG laser.
    Type: Grant
    Filed: June 7, 1993
    Date of Patent: February 15, 1994
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: P. A. Molian, Jerry L. Hall, M. J. Hsu
  • Patent number: 5286901
    Abstract: Precursors and methods for the synthesis of mono- and difunctionalized acetylenes are described. The invention includes novel tricoordinate iodonium transfer reagents and novel alkynyldi(phenyliodonium) salts, both of which are precursors for the functionalized acetylenes. The iodonium transfer reagents take the general form of mixed iodonium sulfonates PhI.sup.+ (X)OSO.sub.2 R.sub.f, where X may be OAc, NHAc, NCO, or CN. These mixed iodonium sulfonates are produced by reaction of iodosobenzene with certain substituted trimethylsilanes.To make the alkynyldi(phenyliodonium) salt PhI.sup.+ C.tbd.CI.sup.+ Ph.cndot.2 R.sub.f SO.sub.3.sup.-,a mixed iodonium sulfonate is reacted with a bistin acetylene of the kind R'.sub.3 SnC.tbd.CSnR".sub.3. Alternatively, the reaction may be performed with disubstituted tin diacetylenes to produce PhI.sup.+ C.tbd.C-C.tbd.CI.sup.+ Ph.cndot.2 R.sub.f SO.sub.3.sup.- to produce a dialkynyldi(phenyliodonium) salt.
    Type: Grant
    Filed: July 19, 1991
    Date of Patent: February 15, 1994
    Assignee: University of Utah Research Foundation
    Inventors: Peter J. Stang, Charles M. Crittell, Bobby L. Williamson, Viktor Zhdankin
  • Patent number: 5285675
    Abstract: A method of measuring the flow and composition of a fluid or mixture of fluids through a system by determining the temperature, pressure and speed of sound in the fluid or mixture of fluids in the system and calculating the flow, molar density and average molecular weight of the fluid from the equation: ##EQU1## wherein: ##EQU2## c=speed of sound P=pressure of the fluidT=temperature of the fluid.rho.=molecular density of the fluidM=average molecular weight of the fluid.phi.=velocity potentialt=time.
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: February 15, 1994
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Samuel O. Colgate, Kenneth C. McGill
  • Patent number: D344487
    Type: Grant
    Filed: July 7, 1992
    Date of Patent: February 22, 1994
    Assignee: The Ishida Foundation
    Inventor: Futoshi Iwamoto