Patents Represented by Attorney, Agent or Law Firm Scott R. Cox
  • Process for production of zeolites with high Si/Al atomic ratio
    Patent number: 6645461
    Abstract: A process for the production of zeolites with a high Si/Al atomic ratio formed by the conversion of amorphous polysilicas (polysilacic acid) with a source of aluminum ions and optionally a template wherein the conversion occurs at a temperature of less than about 100° C., wherein ammonium hydroxide and/or an alkali metal silicate is added to the conversion solution.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: November 11, 2003
    Assignee: Sud-Chemie AG
    Inventors: Klaus K. Unger, Andreas F. K. Hahn
  • Hemostasis valve
    Patent number: 6632200
    Abstract: A hemostasis cannula unit including a valve housing, a cap, and a hemostasis valve, wherein the hemostasis valve includes a proximal valve gasket and a distal valve gasket compressed against the valve gasket by the valve housing, wherein the proximal valve gasket is the same shape as the distal valve gasket.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: October 14, 2003
    Assignee: St. Jude Medical, Daig Division
    Inventors: Xiaoping Guo, Richard Stehr, Daniel J. Potter
  • Partitioned hemostasis valve system
    Patent number: 6623460
    Abstract: A partitioned hemostasis valve system for use with a splittable sheath, including a partitioned hemostasis valve housing which holds a partitioned hemostasis valve formed in at least two separate and distinct sections. Pivotable wing portions are secured to the partitioned valve housing such that upon pressure being placed on these wing portions, the separate sides of the partitioned hemostasis valve housing and the partitioned hemostasis valve are separated. The partitioned hemostasis valve system may also include a splittable adaptor system for securing to a splittable sheath.
    Type: Grant
    Filed: February 7, 2000
    Date of Patent: September 23, 2003
    Assignee: St. Jude Medical, Daig Division
    Inventor: Alicia Heck
  • Catalyzed diesel particulate matter exhaust filter
    Patent number: 6613299
    Abstract: A catalyzed diesel particulate matter exhaust filter including a porous filter substrate for filtering the diesel particulate matter impregnated with a catalytic material which includes an alkaline earth metal vanadate and a precious metal.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: September 2, 2003
    Assignee: Sud-Chemie Prototech, Inc.
    Inventors: Zhongyuan Dang, Yinyan Huang, Amiram Bar-Ilan
  • Ablation catheter
    Patent number: 6605087
    Abstract: An ablation catheter is disclosed having proximal and distal ends and an external surface, a lumen contained within the catheter body, a plurality of openings in the surface of the catheter, wherein the openings are in communication with the lumen, one or more electrodes secured within the catheter within the lumen and a source for conductive media to be introduced into the lumen to contact the electrode. The ablation catheter also may contain a conductive media flow control system which controls the flow of the conductive media through the openings in the surface of the catheter.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: August 12, 2003
    Assignee: St. Jude Medical, Daig Division
    Inventors: John F. Swartz, Michael C. Bednarek, Richard E. Stehr
  • Adhesives for bonding composites
    Patent number: 6602958
    Abstract: Adhesive composition, including a mixture of about 1 percent to about 35 percent by weight of chlorinated polymer, about 1 percent to about 35 percent by weight of a nitrile elastomer, a rubber-modified acrylonitrile copolymer, or mixtures thereof, and about 25 percent to about 90 percent by weight of an alkyl acrylate or methacrylate monomer.
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: August 5, 2003
    Assignee: IPS Corporation
    Inventors: Paul C. Briggs, Masaki Minato, Samuel B. Osae
  • Method for treating process waste waters highly charged with ammonium in waste water systems
    Patent number: 6589425
    Abstract: A process for treating industrial waste water highly loaded with ammonium, by treating the waste water with nitrifying microorganisms (nitric bacteria) in the presence of a suspended carrier substance with a specific surface of >20 m2/g and in a given case a denitrification with denitrifying microorganisms (denitrifying bacteria). According to a modification of the process, a finely-divide carbon-containing material with a surface-pH value of around 6 to 9 is used instead of the silicate carrier substance.
    Type: Grant
    Filed: July 3, 2000
    Date of Patent: July 8, 2003
    Assignee: Sud-Chemie AG
    Inventor: Maximilian Högl
  • Processes for producing a blended bleaching clay product and blended bleaching clay products produced by those processes
    Patent number: 6569798
    Abstract: A process for the production of a bleaching clay product which includes the steps of selecting a naturally occurring, acidic hormite clay product, cleaning and crushing the hormite clay products to form clay clumps, selecting a naturally occurring less acidic, clay product which contains a higher level of montmorillonite than does the acidic hormite clay, aging the crushed hormite clay, blending the aged hormite clay with the less acidic clay product either before or after aging and activating the clay with small quantities of acid. An acceptable bleaching clay product can be produced without activation with acid.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: May 27, 2003
    Assignee: Sud-Chemie Adsorbents, Inc.
    Inventors: Jorge Bello, Christian Fabry
  • Hemostasis valve
    Patent number: 6551283
    Abstract: A hemostasis cannula unit including a valve housing, a cap, and a hemostasis valve, wherein the hemostasis valve includes a valve gasket and a valve membrane compressed against the valve gasket by the valve housing, wherein the valve gasket is thicker than the valve membrane.
    Type: Grant
    Filed: January 25, 2000
    Date of Patent: April 22, 2003
    Assignee: St. Jude Medical, Daig Division
    Inventors: Xiaoping Guo, Richard Stehr
  • Process and device for the treatment of atrial arrhythmia
    Patent number: 6540744
    Abstract: A process for the treatment of atrial arrhythmia by use of ablation procedures comprising circumferential ablation of vessels, particularly pulmonary veins, associated with the left atrium of the heart. Also medical devices for such process including a pair of balloons secured to a catheter with one balloon located within the other balloon and an ablation catheter located within one of the balloons, which devices are used for the formation of a circumferential ablation lesion in the pulmonary vein.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: April 1, 2003
    Assignee: St. Jude Medical, Daig Division, Inc.
    Inventors: James A. Hassett, John F. Swartz, Michael C. Bednarek
  • Washing-agent additive
    Patent number: 6541440
    Abstract: A detergent in agglomerate form is described, characterized by the fact that it contains at least one swellable layer silicate and at least one optical brightener in intimate contact with each other.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: April 1, 2003
    Assignee: Süd-Chemie AG
    Inventor: Wolfgang Heininger
  • Guiding introducers for use in the treatment of accessory pathways around the mitral valve using a retrograde approach
    Patent number: 6540755
    Abstract: A process for the mapping and/or ablation of accessory pathways around the mitral valve using a retrograde approach by use of ablation and/or mapping catheters guided by precurved guiding introducers. Also disclosed are shapes for the guiding introducers to be used for the ablation and/or mapping of the accessory pathways around the mitral valve using a retrograde approach.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: April 1, 2003
    Assignee: Daig Corporation
    Inventors: John D. Ockuly, James A. Hassett
  • Molecular sieve adsorbent for gas purification and preparation thereof
    Patent number: 6530975
    Abstract: A molecular sieve adsorbent for the purification of gas streams containing water vapor and carbon dioxide. The adsorbent is a combination of sodium form of a low-silica faujasite, having a residual content of potassium ions less than about 8.0 percent (equiv.), a low content of crystalline and amorphous admixtures and crystal sizes generally within the range of 1-4 &mgr;m, and a binder. A process for the adsorbent preparation which comprises specific parameters of low silica faujasite synthesis, sodium-potassium ion exchange, blending and granulation.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: March 11, 2003
    Assignee: Zeochem
    Inventors: Edward J. Rode, Albert M. Tsybulevskiy
  • Guiding introducer system for use in medical procedures in the left ventricle
    Patent number: 6526302
    Abstract: A guiding introducer system for use in the treatment of arrhythmia associated with the left ventricle from the ventricular side comprising an inner guiding introducer and an outer guiding introducer wherein the inner guiding introducer is comprised of a first and second section and the outer guiding introducer is comprised of a first and second sections. The guiding introducer system is for use in sensing, pacing, and ablating procedures in the left ventricle.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: February 25, 2003
    Assignee: Daig Corporation
    Inventor: James A. Hassett
  • Process for selective hydrogenation of acetylene in an ethylene purification process
    Patent number: 6509292
    Abstract: A process for selective hydrogenation of acetylene during ethylene purification without in-situ prereduction utilizing a palladium/gold impregnated catalyst wherein the ratio of the gold to the palladium is from about 6:1 to about 50:1.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: January 21, 2003
    Assignee: Sud-Chemie Inc.
    Inventors: Steven A. Blankenship, Richard W. Voight, Jennifer A. Perkins, James E. Fried, Jr.
  • Process and device for the treatment of atrial arrhythmia
    Patent number: 6503247
    Abstract: A process for the treatment of atrial arrhythmia by use of ablation procedures comprising circumferential ablation of vessels, particularly pulmonary veins associated with the left atrium of the heart. Also disclosed are medical devices used for formation of the circumferential ablation lesions in vessels associated with the heart.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: January 7, 2003
    Assignee: Daig Corporation
    Inventors: John F. Swartz, Michael C. Bednarek, Richard E. Stehr, Michael J. Coyle
  • Septic tank filtering system
    Patent number: 6495040
    Abstract: A filtering system for filtering effluent in a septic tank including an outer secondary filter secured within a pipe fitting, wherein the outer secondary filter includes a central opening passing therethrough; an inner primary filter, wherein the inner primary filter is slidingly engaged within the central opening in the outer secondary filter; and a filtering connection element, secured between the outer secondary filter and an inner surface of the pipe fitting, wherein the filtering connection element filters effluent passing upward through the filter pipe fitting and wherein upon removal of the inner primary filter, the outer secondary filter filters the effluent entering the pipe fitting before discharge. Either or both of the outer secondary filter or the inner primary filter may be formed with a biocide to retard the growth of biological material on their surfaces.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: December 17, 2002
    Assignee: Zoeller Co.
    Inventors: Kenneth E. Zoeller, Matthew E. Byers, William V. West, Jason Fletcher
  • Processes for producing a bleaching clay product and bleaching clay products produced by those processes
    Patent number: 6489260
    Abstract: A process for the production of a bleaching clay product which includes the steps of selecting a naturally occurring hormite clay product, cleaning and crushing the clay product to form clay clumps less than 6 in. in diameter, aging the crushed hormite clay and activating the clay with extremely small amounts of acid, in the range of less than 1 percent, by weight. Also, an acceptable bleaching clay product can be produced without the addition of any acid to the aged hormite clay.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: December 3, 2002
    Assignee: Sud-Chemie Inc.
    Inventors: David Hill, Christian P. Fabry, Jorge Bello
  • Process for selective hydrogenation of an olefinic feed stream containing acetylenic and diolefinic impurities
    Patent number: 6486369
    Abstract: A process for selective hydrogenation of a C2 and C3 olefinic feed stream containing acetylenic and diolefinic impurities whereby the acetylenes and diolefins impurities are selectively hydrogenated concurrently in a vapor phase process without first separating the C2 and C3 olefinic gases into separate feed stream.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: November 26, 2002
    Assignee: Sud-Chemie Inc.
    Inventors: Richard W. Voight, Steven A. Blankenship
  • Device for the mapping of cardiac arrhyhmia foci
    Patent number: 6466811
    Abstract: A device for the mapping of cardiac arrhythmia foci including a catheter body having a distal tip, first and second point electrodes, which are secured to the catheter body and which form a first bipolar pair of electrodes, and third and fourth point electrodes, which are secured to the catheter body and which form a second bipolar pair of electrodes, wherein a line passing between the third and fourth point electrodes is within about 45 degrees of being perpendicular to a line passing through the first and second point electrodes.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: October 15, 2002
    Assignee: Daig Corporation
    Inventor: James A. Hassett