Patents Represented by Law Firm Curtis, Morris & Safford
  • Patent number: 5767367
    Abstract: Protoplasts which regenerate reproducibly in a short time to normal, fertile plants can be regenerated from an auxin-autotrophic genotype of Zea mays (L.). Starting from immature embryos on hormone-free media, an auxin-autotrophic, embryogenic callus is formed on the shoot basis of the seedlings, which callus retains its embryogenic potential over a substantial period of time when subcultured on hormone-free medium. In addition to fully-developed embryos, adventitious embryos are also formed under suitable culture conditions (6-9% of sucrose in the medium). When the sucrose content is reduced to 2-3% and 2,4-dichlorophenoxyacetic acid is added, soft, granular calli are formed which consist of embryogenic cell aggregates (type II callus). After subculturing the type II callus in the form of a cell suspension culture, totipotent protoplasts can be isolated. From these protoplasts, the maize plants according to the invention are regenerated.
    Type: Grant
    Filed: January 12, 1995
    Date of Patent: June 16, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Denes Dudits, Sandor Morocz, Janos Nemeth, Gunter Donn
  • Patent number: 5762949
    Abstract: The invention relates to formulations comprising silafluofen for controlling social insects, and to a process for controlling them, in which the insect populations are destroyed using acutely sublethal doses of silafluofen.
    Type: Grant
    Filed: August 7, 1996
    Date of Patent: June 9, 1998
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventor: Manfred Kern
  • Patent number: 5762939
    Abstract: A method of preparing a recombinant influenza vaccine using DNA technology is provided. The resulting vaccine is a trivalent influenza vaccine based on a mixture of recombinant hemagglutinin antigens cloned from influenza viruses having epidemic potential. The recombinant hemagglutinin antigens are full length, uncleaved (HA0), glycoproteins produced from baculovirus expression vectors in cultured insect cells and purified under non-denaturing conditions. The process for cloning influenza hemagglutinin genes from influenza A and B viruses uses specially designed oligonucleotide probes and PCR. The cloned HA genes are then modified by deletion of the natural hydrophobic signal peptide sequences and replacing them with a new baculovirus signal peptide. A general approach for the efficient extraction and purification of recombinant HA protein produced in insect cells is also disclosed which can be adapted for the purification of rHA proteins from A sub-types and B type influenza viruses.
    Type: Grant
    Filed: September 13, 1993
    Date of Patent: June 9, 1998
    Assignee: MG-PMC, LLC
    Inventors: Gale Eugene Smith, Franklin Volvovitz, Bethanie Eident Wilkinson, Craig Stanway Hackett
  • Patent number: 5755713
    Abstract: A laparoscopic instrument assembly with a rigid outer housing, housing multiple guide disks. The guide disks rotate inside the instrument assembly 360 degrees around a center post and guide the rotation, positioning, and implementation of multiple laparoscopic instruments. A plurality of laparoscopic instruments are rotated into position utilizing a selector knob attached to said center post. Once properly positioned, the selected laparoscopic instrument is axially translated into the forward position where it couples to an actuating handpiece. The actuating handpiece engages the selected laparoscopic instrument by pivoting from its disengaged position about a pivot point, thus allowing use of the selected laparoscopic instrument. The instrument can be thus be withdrawn and another instrument selected in the same manner.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: May 26, 1998
    Inventors: Michael L. Bilof, Michael J. Nusbaum
  • Patent number: 5753193
    Abstract: A device for creating a deposit of silicon oxide on a traveling solid substrate, wherein the substrate is subjected to an electrical discharge with a dielectric barrier in the presence of a controlled atmosphere containing a silane and an oxidizing gas, the atmosphere being at a pressure higher than 10,000 Pa, and wherein the atmosphere is maintained in the immediate vicinity of an electrode in the region where the electrical discharge is produced and further wherein any entrainment of oxygen other than that forming part of the atmosphere in the region is prevented.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: May 19, 1998
    Assignees: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, Softal Electronic GmbH
    Inventors: Frank Slootman, Pascal Bouard, Fran.cedilla.ois Coeuret, Dominique Jouvaud, Eckhard Prinz
  • Patent number: 5753463
    Abstract: A purified pneumococcal surface protein A (PspA) comprises a truncated form of the PspA protein which is immunoprotective and contains the protective epitopes of PspA. The PspA protein is soluble in physiologic solution and lacks at least the cell membrane anchor region of the whole protein. The protein is formed by insertion-duplication of mutagenesis of S. pneumoniae with pspA gene and expression of the truncated protein into the growth medium.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: May 19, 1998
    Assignee: UAB Research Foundation
    Inventors: David E. Briles, Janet L. Yother
  • Patent number: 5750249
    Abstract: Composite particles suitable as conductive filler for electrically conductive compositions which can be used as gaskets, caulking and plastics, for example. The compositions are, useful as EMI shielding and electrostatic charge dissipation materials. Methods of making and using the foregoing are also covered.
    Type: Grant
    Filed: February 5, 1993
    Date of Patent: May 12, 1998
    Assignee: Potters Industries, Inc.
    Inventors: James F. Walther, Robert J. Teichmann, Andrew M. Wasowicz
  • Patent number: 5746974
    Abstract: What is described are methods and apparatus for performing a binding assay for an analyte of interest present in a sample. The methods include the steps of: forming a composition containing said sample, an assay-performance-substance which contains a component linked to a label compound capable of chemiluminescing when triggered, and a plurality of coated magnetic particles capable of specifically binding with the analyte and/or said assay-performance-substance; incubating said composition to form a complex which includes a particle and said labeled component; magnetically collecting said complex at the surface of an electrode; inducing said label to luminesce by contacting it with a trigger, said trigger being formed in-situ by conversion of a precursor molecule upon introduction of electrochemical energy; and measuring the emitted luminescence to measure the presence of the analyte of interest in the sample.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: May 5, 1998
    Assignee: IGEN International, Inc.
    Inventors: Richard J. Massey, Gary F. Blackburn, Elizabeth W. Wilkins, Jonathan K. Leland
  • Patent number: 5744140
    Abstract: What is described is a recombinant poxvirus, such as vaccinia virus, fowlpox virus and canarypox virus, containing foreign DNA from flavivirus, such as Japanese encephalitis virus, yellow fever virus and Dengue virus. In a preferred embodiment, the recombinant poxvirus generates an extracellular particle containing flavivirus E and M proteins capable of inducing neutralizing antibodies, hemagglutination-inhibiting antibodies and protective immunity against flavivirus infection. What is also described is a vaccine containing the recombinant poxvirus for inducing an immunological response in a host animal inoculated with the vaccine.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: April 28, 1998
    Assignee: Virgenetics Corporation
    Inventors: Enzo Paoletti, Steven Elliot Pincus
  • Patent number: 5741493
    Abstract: The use, when preparing a vaccine composition containing a standard influenza virus vaccine, of an additive which consists of a core or core fraction of at least one influenza virus, especially a fraction containing protein M; and a vaccine composition thereby obtained. The use of said additive improves the vaccine's effectiveness.
    Type: Grant
    Filed: January 19, 1995
    Date of Patent: April 21, 1998
    Assignee: Pasteur Merieux Serums et Vaccins
    Inventors: Catherine Moste-Deshairs, Bernard Meignier
  • Patent number: 5740035
    Abstract: Self-administered survey devices include a display, an input device, a memory and a control device which controls the display to show at least one survey question and control the memory to store a response to the at least one question. A system and method for carrying out self-administered surveys utilize a centralized survey data processor and a plurality of self-administered survey devices for storing survey data entered by respective respondents and wherein survey data is wirelessly transmitted from the plurality of self-administered survey devices to the centralized survey data processor.
    Type: Grant
    Filed: July 23, 1991
    Date of Patent: April 14, 1998
    Assignee: Control Data Corporation
    Inventors: Gerald B. Cohen, Louis W. Conley, Roberta M. McConochie, Robert H. Patchen, James D. Peacock, Claude A. Rankin, Thomas W. White
  • Patent number: 5736469
    Abstract: Anti-static cleanroom products having a coating of conductive polymeric particulates which decreases the surface resistivity of the products. Preferably, the particulates are pyrrole polymers. The anti-static properties are achieved by depositing conductive polymer particles onto the non-conductive substrate surface. The anti-static products include cleanroom wipers, stationery products (notebooks and writing instruments), garments and swabs (polyurethane foam tipped). The cleanroom stationery products include notebooks comprising polyethylene impregnated with silica. The invention also includes anti-static plastic gloves.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: April 7, 1998
    Assignee: The Texwipe Company LLC
    Inventors: Himansu R. Bhattacharjee, Edward Paley
  • Patent number: 5733455
    Abstract: A wastewater treatment process having improved solids separation characteristics and reduced biochemical oxygen demand (BOD) in the purified wastewater comprising the steps of: passing wastewater containing suspended solids and biodegradable organic substances through a main aerobic biological oxidation zone and therein oxidizing a portion of the BOD and converting a portion of the BOD into additional suspended solids and at least a portion of the ammonia nitrogen content (NH.sub.3 --N) of the wastewater is oxidized to nitrate nitrogen (NO.sub.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: March 31, 1998
    Assignee: Polytechnic University
    Inventors: Alan H. Molof, Zuwahn Yun
  • Patent number: 5732143
    Abstract: This invention relates to a method and an apparatus for reducing ambient noise for use with a headset or a boom headset attached to a boom microphone device or the like. The apparatus can include a sensor microphone to detect a background noise signal, a desired input audio transmission, and signal processing means for canceling the noise signals to create an inverted anti-noise signal within an acoustical waveguide located adjacent to the earphone of headset. The method for reducing noise according to this invention is provided by an open loop circuit allowing the input audio signal from an operator or caller to be transmitted to the user's ear without the disturbance of unwanted ambient noise. The method provides adjustments to the gain/or and phase of a noise signal for canceling the noise component detected, within an acoustical waveguide to produce a quiet zone for the desired audio speech to be transmitted.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 24, 1998
    Assignee: Andrea Electronics Corp.
    Inventors: Douglas Andrea, Martin Topf
  • Patent number: 5728387
    Abstract: A purified pneumococcal surface protein A (PspA) comprises a truncated form of the PspA protein which is immunoprotective and contains the protective epitopes of PspA. The PspA protein is soluble in physiologic solution and lacks at least the cell membrane anchor region of the whole protein. The protein is formed by insertion-duplication of mutagenesis of S. pneumoniae with pspA gene and expression of the truncated protein into the growth medium.
    Type: Grant
    Filed: March 17, 1994
    Date of Patent: March 17, 1998
    Assignee: University of Alabama at Birmingham Research Foundation
    Inventors: David E. Briles, Janet L. Yother
  • Patent number: 5728696
    Abstract: Acaricidal, insecticidal and nematicidal substituted (hetero)arylalkyl ketone oxime O-ethers, processes for their preparation, agents containing them, and their use as pesticides.The invention relates to compounds of the formula ##STR1## in which Ar.sup.1 and Ar.sup.2 are aryl or heteroaryl, each of which is optionally substituted, and R is an optionally substituted aliphatic or alicyclic radical, to processes for their preparation, and to agents containing these compounds, and to their use for controlling animal pests.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: March 17, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Birgit Kuhn, Gerhard Salbeck, deceased, Uwe Doller, Stefan Schnatterer, Hans-Herbert Schubert, Werner Knauf, Anna Waltersdorfer, Manfred Kern
  • Patent number: 5725710
    Abstract: To produce fiber-reinforced composites, a continuous fiber strand is pulled through an agitated aqueous thermoplastic powder dispersion via deflectors. Following removal of the water phase the thermoplastic powder is heated and melted onto the fibers. Finally the fiber strand is impregnated with a thermoplastic melt by melt pultrusion.
    Type: Grant
    Filed: February 5, 1996
    Date of Patent: March 10, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Bernhard Pfeiffer, Detlef Skaletz, Horst Heckel, Anne Texier, Joachim Heydweiller
  • Patent number: 5723450
    Abstract: The invention relates to compounds of the formula ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are H, halogen, an aliphatic radical or an aromatic radical, X is O, S or optionally substituted imino, Y is a bond or an optionally substituted bivalent hydrocarbon radical and Z is optionally substituted cycloalkyl or cycloalkenyl. The invention furthermore relates to processes for their preparation and their use as pesticides, in particular as insecticides, acaricides and fungicides.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: March 3, 1998
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Dieter Bernd Reuschling, Adolf Heinz Linkies, Volkmar Wehner, Rainer Preuss, Wolfgang Schaper, Harald Jakobi, Peter Braun, Werner Knauf, Burkhard Sachse, Anna Waltersdorfer, Manfred Kern, Peter Lummen, Werner Bonin
  • Patent number: RE35754
    Abstract: Cephem derivatives of the general formula ##STR1## is which the R.sub.2 O group is in the syn-position, a process for their manufacture and pharmaceutical formulations which are active against bacterial infections and contain these compounds.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: March 24, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Walter Durckheimer, Dieter Bormann, Eberhard Ehlers, Elmar Schrinner, Rene Heymes
  • Patent number: D392852
    Type: Grant
    Filed: December 17, 1996
    Date of Patent: March 31, 1998
    Assignee: Robbins Industries Inc.
    Inventors: Frans M. Weterrings, E. Stanley Robbins, Rodney W. Robbins