Patents Assigned to Nova
  • Ether amines from 2-pentenenitrile
    Patent number: 6114585
    Abstract: The present invention relates to a series of novel ether amine compounds prepared by the cyanobutylation reaction of an alcohol having 12 to 26 carbon atoms with 2-pentenenitrile to form a branched alkyl ether nitrile. The etheraminonitriles formed by the process are hydrogenated to form alkylether amines. The resulting product can be reacted with 2-pentenenitrile and hydrogenated to yield a polyamine.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: September 5, 2000
    Assignee: Nova Molecular Technologies Inc
    Inventors: Thomas J. Daly, Anita Mokadam Sorhaug, Robert E. Harbour, Jr., Abraham A. Zahand, Michael Clumpner, Anthony J. O'Lenick, Jr.
  • Catalyst having a ketimide ligand
    Patent number: 6114481
    Abstract: A catalyst system comprises an organometallic complex of a group 4 metal having a ketimide ligand. The organometallic complex preferably also contains a cyclic ligand which forms a delocalized pi-bond with the metal (such as a cyclopentadienyl-type ligand). Preferred organometallic complexes may be activated with a so-called "substantially non coordinating anion" to form a low cost cocatalyst system which is excellent for the preparation of olefin copolymers having both high molecular weight and very low density.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: September 5, 2000
    Assignee: Nova Chemicals (International) S.A.
    Inventors: John McMeeking, Xiaoliang Gao, Rupert Edward von Haken Spence, Stephen John Brown, Dusan Jeremic
  • Integrated high temperature high conversion olefin/polyolefin process
    Patent number: 6111156
    Abstract: A combined chain of a high temperature, high conversion steam cracker in combination with a polymerization or oligomerization unit provides capital and operating cost reduction.
    Type: Grant
    Filed: November 10, 1998
    Date of Patent: August 29, 2000
    Assignee: Nova Chemicals (International) S.A.
    Inventors: Michael C. Oballa, David Purvis, Andrzej Z. Krzywicki, Leslie W. Benum
  • Tracking, propulsion and braking system for bridge tripper/hopper car
    Patent number: 6098780
    Abstract: A tripper/hopper car rides on a conveyor via four wheel tires running on T-section rails, with respective hold down wheels riding adjacent the underside of the rails and respective caster side wheels riding adjacent the vertical edges of the T-rails. Each wheel tire is driven by a motor drive unit employing a shaft-mount gearbox with a motor brake that utilizes the reduction of the drive gearbox to increase the effective braking torque developed. A pair of caliper-type brakes is further provided for redundancy.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: August 8, 2000
    Assignee: Terra Nova Technologies, Inc.
    Inventors: Ronald R. Kelly, George M. Bernard
  • Method and apparatus for measurements of patterned structures
    Patent number: 6100985
    Abstract: A method for measuring at least one desired parameter of a patterned structure having a plurality of features defined by a certain process of its manufacturing. The structure represents a grid having at least one cycle formed of at least two locally adjacent elements having different optical properties in respect of an incident radiation. An optical model, based on at least some of the features of the structure is provided. The model is capable of determining theoretical data representative of photometric intensities of light components of different wavelengths specularly reflected from the structure and of calculating said at least one desired parameter of the structure. A measurement area, which is substantially larger than a surface area of the structure defined by the grid cycle, is illuminated by an incident radiation of a preset substantially wide wavelength range.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: August 8, 2000
    Assignee: Nova Measuring Instruments, Ltd.
    Inventors: David Scheiner, Moshe Finarov
  • Work station for flat monitors
    Patent number: 6092883
    Abstract: A flat monitor is associated with a work station in inset relationship to the top surface of the work station's platform so as to be non-interfering with this top surface usage. The flat monitor is supported in a compartment structure associated with an opening in the platform. The compartment and the flat monitor are preferably provided with a transparent sheet extending over the platform opening.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: July 25, 2000
    Assignee: Nova Solutions, Inc.
    Inventor: John N. Lechman
  • Preparation of monitor viewing apertures in a work station
    Patent number: 6085431
    Abstract: A template assembly is provided for cutting an aperture in a deck. The template assembly comprises a pair of sized frames, one of which is positionable in spaced, parallel relationship relative to the other, and furthermore one of the sized frames extends over the deck. A bracket is included along an adjacent side edge of each of the sized frames, where the bracket adjustably vertically spaces each of the sized frames from the other. The bracket further includes a clamp for holding the bracket at a predetermined position. A retaining device is included for holding the sized frames at a fixed position against the deck.
    Type: Grant
    Filed: April 21, 1998
    Date of Patent: July 11, 2000
    Assignee: Nova Solutions, Inc.
    Inventor: Edward C. Schairbaum
  • Mixed titanium-vanadium catalysts for solution ethylene polymerization
    Patent number: 6084042
    Abstract: The present invention provides a Ziegler-Natta catalyst based on titanium and vanadium useful in solution processes for the polymerization of olefins having a low amount of aluminum and magnesium. The catalysts of the present invention have a molar ratio of magnesium to the first aluminum component from 4.0:1 to 8.0:1 and molar ratio of magnesium to titanium and vanadium from 4.0:1 to 8.0:1. The invention provides a novel catalyst preparation method to substantially increase the polymer molecular weight in the high temperature ethylene polymerization process.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: July 4, 2000
    Assignee: Nova Chemicals (International) S.A.
    Inventors: Isam Jaber, Stephen John Brown
  • Dissolving insecticide in monomer
    Patent number: 6080796
    Abstract: Insecticides, and particularly termiticides, may be dissolved in monomers polymerized to form foamable polymers, such as polystyrene. The resulting monomer and insecticide may then be polymerized in a conventional manner and either impregnated with a blowing agent or expanded using an extrusion process to produce polymeric foam having insecticidal properties. The polymer may also contain a flame retardant. Such polymers and the foam made therefrom may be used in the construction industry, particularly where insect infestation is a concern.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: June 27, 2000
    Assignee: Nova Chemicals Inc.
    Inventors: Rebecca B. Liebert, Christine B. Hetzer
  • Beam-type work station improvements
    Patent number: 6076903
    Abstract: A work station suitable for mounting office equipment, and particularly electrical equipment, including an elongate support beam and legs for mounting this beam in a horizontal position above a floor. Work surfaces are mounted on at least one side of this beam and a support wall is mounted on top of the beam. A support wall extension is mounted on top of this support wall so as to increase the overall height of the wall. A self-supporting equipment cabinet is connectible to one end of the support beam and has an access opening in at least one side located adjacent the end of the beam. This opening permits wiring and cable to extend from the cabinet into the beam. Support brackets with horizontal inner arm sections and steeply sloping intermediate arm sections are provided to connect work surface members to the beam.
    Type: Grant
    Filed: March 4, 1998
    Date of Patent: June 20, 2000
    Assignee: Nova-Link Limited
    Inventor: Antonius Adrian Vander Park
  • Coin counter assembly for push-pull coin mechanism for vending and arcade machines and appliances
    Patent number: 6062370
    Abstract: A coin counter is provided for push-pull coin vending machines, arcade machines and pay-per-use appliances. The counter comprises a bracket assembly having first and second chambers. The first chamber for receiving, processing and expelling a coin, and the second chamber having a switch assembly which is interactive with the coins moving through the first chamber by means of an actuator arm so as to register counts on a connected numeric display. The counter further comprises a stop which receives the weight of the coins processed through the machine and also redirects the coins, allowing the actuator arm to rotate in a reduced arc than the prior art.
    Type: Grant
    Filed: September 23, 1998
    Date of Patent: May 16, 2000
    Assignee: Nova Resolution Industries, Inc.
    Inventors: Nikolay Nikolayev, Elliott Porco
  • High temperature solution polymerization process with phosphinimine cyclopentadienyl metal (GRP IV) complex
    Patent number: 6063879
    Abstract: This invention is a solution process for the preparation of high molecular weight ethylene copolymers comprising contacting olefin monomers, with a catalyst system at a polymerization temperature at or above about 80.degree. C. with a catalyst system comprising an unbridged Group 4 metal compound having a monocyclopentadienyl ligand, a phosphinimine ligand and at least one uninegative, activation reactive ligand. The process can be practiced at a reaction temperature of at least 80.degree. C. to obtain high number average molecular weight polymer.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: May 16, 2000
    Assignee: Nova Chemicals (International) S.A.
    Inventors: Douglas W. Stephan, Jeff C. Stewart, Stephen John Brown, John William Swabey, Qinyan Wang
  • Heuchera plant named `Fireworks`
    Patent number: PP11376
    Abstract: A new and distinct hybrid of Heuchera plant characterized by unusual coral-colored flowers, produced abundantly over a long bloom period above old-bronze-colored foliage.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: May 9, 2000
    Assignee: Terra Nova Nurseries, Inc.
    Inventor: Dan M. Heims
  • Heuchera plant named `Cherries Jubilee`
    Patent number: PP11377
    Abstract: A new and distinct hybrid of Heuchera plant characterized by cherry-red flowers and chocolate-toned foliage.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: May 9, 2000
    Assignee: Terra Nova Nurseries, Inc.
    Inventor: Dan M. Heims
  • Tiarella plant named `Mint Chocolate`
    Patent number: PP11379
    Abstract: A new and distinct hybrid Tiarella plant characterized by deeply lobed, highly colored foliage and tawny-pink flowers in profusion.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: May 16, 2000
    Assignee: Terra Nova Nurseries, Inc.
    Inventor: Dan M. Heims
  • Heuchera plant named `Ebony & Ivory`
    Patent number: PP11380
    Abstract: A new and distinct hybrid of Heuchera plant characterized by dark ruffled foliage and white flowers in profuse panicles to 50 cm (20 in) in height.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: May 16, 2000
    Assignee: Terra Nova Nurseries, Inc.
    Inventor: Dan M. Heims
  • Heuchera plant named `Magic Wand`
    Patent number: PP11390
    Abstract: A new and distinct hybrid of Heuchera plant characterized by unique flower panicles, attractive leaf coloration, and large flowers.
    Type: Grant
    Filed: June 23, 1998
    Date of Patent: May 23, 2000
    Assignee: Terra Nova Nurseries, Inc.
    Inventor: Dan M. Heims
  • Silene dioica plant named `Jade Valley`
    Patent number: PP11459
    Abstract: A new and distinct Silene dioica plant characterized by unusual jade-green centers on cream-color leaves.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: July 25, 2000
    Assignee: Terra Nova Nurseries, Inc.
    Inventor: Dan M. Heims
  • Modular trapezoidal classroom desk
    Patent number: D429088
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: August 8, 2000
    Assignee: Nova Solutions, Inc.
    Inventor: John N. Lechman
  • Rectangular classroom desk
    Patent number: D429579
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: August 22, 2000
    Assignee: Nova Solutions, Inc.
    Inventor: John N. Lechman