Patents Represented by Attorney, Agent or Law Firm Bret E. Field
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Patent number: 6540733Abstract: Catheter devices and methods are provided for enhancing fluid flow through a vascular site occupied by a calcified lesion. The catheter devices of the subject invention at least include, at their distal end, a proton generating means, and in many embodiments also include a flushing means. In using the subject devices, the distal end of the catheter is placed proximal to the vascular occlusion and protons are generated, e.g., via proton generation from water, in a manner sufficient to reduce the pH of the vascular site in the region proximal to the occlusion. The subphysiologic pH is maintained for a period of time sufficient for fluid flow through the vascular site to be enhanced. Also provided are kits comprising the subject catheter devices for use in the subject methods.Type: GrantFiled: December 29, 2000Date of Patent: April 1, 2003Assignee: Corazon Technologies, Inc.Inventors: Brent R. Constantz, John Ross
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Patent number: 6537523Abstract: The presence of clonal macrophages in pre-cancerous and cancerous tissue represents an early stage of the disease in which clonal expansion of macrophages occurs due to HIV integration or other genetic mutation. Clonally expanded macrophages induce proliferation of surrounding tissue leading to cancerous tumor growth. The invention provides methods and kits for diagnosis of HIV- and non-HIV-associated clonal expansion of macrophages in pre-cancerous and cancerous tissue. The invention also provides methods for the treatment of cancers induced by clonal macrophage expansion and proliferation of surrounding tissue.Type: GrantFiled: November 20, 1997Date of Patent: March 25, 2003Assignee: The Regents of the University of CaliforniaInventors: Michael S. McGrath, Brian Herndier, Bruce Shiramizu
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Patent number: 6533767Abstract: Methods of enhancing fluid flow through a vascular site occupied by a vascular occlusion, as well as systems and kits for use in practicing the same, are provided. In practicing the subject methods, the vascular site is flushed simultaneously with a first dissolution fluid (e.g., an organic matter dissolution fluid and/or an inorganic matter dissolution fluid), and a second dissolution fluid attenuating fluid, where flushing is carried out in a manner such that only a surface of the vascular occlusion is contacted with the non-attenuated dissolution fluid. Examples of dissolution fluid/dissolution fluid attenuating fluid pairs include: (1) oxidizing agent fluid and fluid comprising oxidizable neutralizing agent; (2) surfactant fluid and phosphate buffered saline; (3) acidic solution and phosphate buffered saline; etc. Flushing is carried out in this manner for a period of time sufficient for fluid flow through the vascular site to be enhanced, e.g. increased or established.Type: GrantFiled: January 30, 2001Date of Patent: March 18, 2003Assignee: Corazon Technologies, Inc.Inventors: Peter Johansson, David Delaney, Brent Constantz
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Patent number: 6528490Abstract: The invention provides medicaments comprising an oenothein, including topical formulations for use as free radical scavengers, or to treat irritation, or to treat inflammation. The oenothein for use in such formulations, such as oenothein-A or oenothein-B, may be purified from natural sources, such as plant material (e.g. Epilobium angustifolium).Type: GrantFiled: November 4, 1999Date of Patent: March 4, 2003Assignee: Fytoken Products, Inc.Inventors: Warren Steck, Mark Hetherington
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Patent number: 6527979Abstract: Catheter systems and methods for their use in enhancing fluid flow through a vascular site occupied by a vascular occlusion are provided. The subject catheter systems include at least an aspiration catheter and at least one of a total occlusion insert catheter and a partial occlusion insert catheter, where the insert catheters are capable of being slidably moved in the lumen of the aspiration catheter. In practicing the subject methods, a surface of the vascular occlusion is flushed with an acidic dissolution fluid using the subject catheter systems for a period of time sufficient for fluid flow through the vascular site to be enhanced, e.g. increased or established. The subject catheter systems and methods find use in the treatment of a variety of different vascular diseases characterized by the presence of calcified vascular occlusions, including peripheral and coronary vascular diseases.Type: GrantFiled: August 27, 1999Date of Patent: March 4, 2003Assignee: Corazon Technologies, Inc.Inventors: Brent R. Constantz, Peter K. Johansson, Erin McGurk
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Patent number: 6524600Abstract: Soil amendment compositions and methods for using the same are provided. The subject compositions are aqueous compositions consisting essentially of a carbon-skeleton energy component, a predisposing agent and a vitamin-cofactor component. The subject compositions find use in a variety of soil amendment applications, including: the control of soil born pests and pathogens; the improvement in soil fertility and/or characteristics, e.g. mineral release, water filtration; the neutralization and/or degradation of toxins, etc. Further, an aqueous composition containing 10 to 50% w/w of a molasses and lignosulfonate, as well as 0.001 to 10% w/w of gallic acid and a yeast extract is also disclosed. In addition, the composition does not include nitrogen, phosphorous, zinc, iron or manganese.Type: GrantFiled: December 1, 2000Date of Patent: February 25, 2003Inventor: Thomas T. Yamashita
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Patent number: 6515001Abstract: The invention provides therapeutic and biological uses of chemokine-receptor-binding compounds (including chemokine receptor ligands such as chemokine receptor agonists or antagonists), such as benzopyrone derivatives, including uses in the treatment of disease states mediated by chemokines. The relevant chemokine may for example be interleukin-8 (IL-8), and the relevant chemokine receptors may for example be corresponding chemokine receptors (CXCR-1 and/or CXCR-2). In other aspects, the invention provides corresponding pharamaceutical compositions and therapeutic methods. In one aspect, for example, the invention provides for the use of [7-[benzopyrone-5′(3′-amino)-thiazole]-phenylalanine-benyl ester in the treatment of disease.Type: GrantFiled: March 5, 2001Date of Patent: February 4, 2003Assignee: Chemokine Therapeutic CorporationInventors: Geeta Saxena, Christopher R. Tudan, Nick Cheng, Hassan Salari
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Patent number: 6506549Abstract: Solutions are described which are useful as plasma expanders and blood substitutes in mammals, including primates, and methods for using the solutions.Type: GrantFiled: May 4, 2000Date of Patent: January 14, 2003Assignee: BioTime, Inc.Inventors: Paul E. Segall, Harold D. Waitz, Hal Sternberg, Judith M. Segall
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Patent number: 6489535Abstract: Transgenic non-mammalian animals, e.g. flies, that exhibit an adult onset neurodegenerative phenotype, as well as methods for preparing the same, are provided. Also provided are methods of using the subject transgenic non-mammalian animals to identify compounds having activity with respect to adult onset neurodegenerative diseases. Finally, kits for screening compounds for anti-neurodegenerative activity are provided.Type: GrantFiled: December 27, 1999Date of Patent: December 3, 2002Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Patrick Fogarty, Joseph Lipsick
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Patent number: 6488671Abstract: Methods of enhancing fluid flow through a vascular site occupied by a vascular occlusion, as well as systems and kits for use in practicing the same, are provided. In practicing the subject methods, the vascular site is flushed simultaneously with a first dissolution fluid and a second dissolution fluid attenuating fluid, where flushing is carried out in a manner such that only a surface of the vascular occlusion is contacted with the non-attenuated dissolution fluid. Flushing is carried out in this manner for a period of time sufficient for fluid flow through the vascular site to be enhanced, e.g. increased or established. The subject methods, systems and kits for practicing the same find use in the treatment of a variety of different vascular diseases characterized by the presence of vascular occlusions, including both partial and total occlusions.Type: GrantFiled: March 20, 2000Date of Patent: December 3, 2002Assignee: Corazon Technologies, Inc.Inventors: Brent R. Constantz, Dave Delaney, Christine Hankermeyer
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Patent number: 6489455Abstract: Methods and compositions are provided for analyzing differences in the RNA profiles between a plurality of different physiological samples. In the subject methods, a set of a representational number of distinct gene specific primers is used to generate labeled nucleic acids from each of the different physiological samples. The labeled nucleic acids are then compared to each other and differences in the RNA profiles are determined. The subject methods find use in methods of identifying differential gene expression.Type: GrantFiled: January 5, 1999Date of Patent: December 3, 2002Assignee: Clontech Laboratories, Inc.Inventors: Alex Chenchik, George Jokhadze, Robert Bibilashvilli
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Patent number: 6485923Abstract: Reagent test strips and methods for their use in the determination of the concentration of an analyte, e.g. glucose, in a physiological sample, are provided. The subject reagent test strips include one or more members of an analyte oxidation signal producing system and at least one hemolyzing agent. The subject reagent test strips and methods are particularly suited for use in the detection of blood glucose concentrations. Also provided are kits that include the subject test strips for use in practicing the subject methods.Type: GrantFiled: February 2, 2000Date of Patent: November 26, 2002Assignee: LifeScan, Inc.Inventors: Adva Yani, Paing C. Huang
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Patent number: 6479546Abstract: Allosteric inhibitors of lipoxygenase and methods for their use are provided. In many embodiments, the allosteric inhibitors are sulfated long chain alkenyl compounds. The compounds of these embodiments are long chain monounsatured alkenyl compounds having a single sulfate moiety at the 1 position. In many embodiments, the subject compounds range in length from about 14 to 22 carbon atoms and the site of unsaturation is located between the 8 and 14 positions. Specific compounds of interest include 9-oleyl sulfate; 9-palmitoleyl sulfate and 11-eicosenyl sulfate. The subject compounds exhibit lipoxygenase inhibitory activity. As such, the subject compounds find use in treating disease conditions characterized by the presence of undesirable lipoxygenase activity. Also provided are pharmaceutical preparations of the subject compounds.Type: GrantFiled: July 26, 2000Date of Patent: November 12, 2002Assignee: The Regents of the University of CaliforniaInventors: Theodore Russell Holman, Rakesh Mogul
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Patent number: 6475440Abstract: Applicator devices for depositing a fluid sample onto a substrate, as well as methods for their use, are provided. The subject devices are elongate in shape and have a first end and a second end. The first end has a planar surface of substantially circular shape with a conical protuberance arising therefrom. The second end may have a means for attaching to an automated movement means. In using the subject devices, the first end is dipped into a fluid sample and then contacted with the surface of a substrate in a manner sufficient to deposit a fluid sample onto the substrate surface. The subject devices and methods find use in a variety of different applications, particularly in the preparation of biopolymeric arrays.Type: GrantFiled: August 25, 1999Date of Patent: November 5, 2002Assignee: Clontech Laboratories, Inc.Inventor: Dmitry Bochkariov
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Patent number: 6475258Abstract: Foliar fertilizer compositions and methods for their use are provided. The subject compositions are aqueous solutions of at least one coenzyme, where the coenzyme(s) is preferably a vitamin B, and more preferably folic acid and/or pyridoxine, where in many preferred embodiments the compositions include both folic acid and pyridoxine. The subject compositions may further include at least one of a carbohydrate source, a complexing agent and a preservative. The subject foliar fertilizer compositions find use in enhancing the growth of a variety of plants through foliar application.Type: GrantFiled: September 25, 2000Date of Patent: November 5, 2002Inventor: Thomas T. Yamashita
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Patent number: 6475798Abstract: Novel P element derived vectors and methods for their use to insert an exogenous nucleic acid into the genome of a target cell are provided. The subject vectors have a pair of P element transposase recognized insertion sites, e.g. 31 base pair inverted repeats, flanking at least two transcriptionally active genes. In practicing the subject methods, a vector of the subject invention is introduced into the target cell under conditions sufficient for transposition to occur. The subject methods find use in a variety of applications in which the insertion of an exogenous nucleic acid into the genome of a target cell is desired, e.g. include research, synthesis and therapeutic applications.Type: GrantFiled: August 9, 2001Date of Patent: November 5, 2002Assignees: The Board of Trustees of the Leland Stanford Junior University, TOSK, Inc.Inventors: Patrick Fogarty, Joseph Lipsick
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Patent number: 6465193Abstract: Targeted molecular bar codes and methods for using the same are provided. The subject targeted molecular bar codes include a molecular bar code and a member of a specific binding pair, where the specific binding pair member is generally bonded to the bar code through a linking group. The subject molecular bar code may be read during translocation through a single nano-meter scale pore. The subject targeted molecular bar codes find use in a variety of different applications involving analyte detection, such as screening and diagnostic applications.Type: GrantFiled: December 10, 1999Date of Patent: October 15, 2002Assignee: The Regents of the University of CaliforniaInventors: Mark Akeson, David W. Deamer, Wenonah Vercoutere, Hugh E. Olsen, Rebecca Braslau, Bakthan Singaram, Derek Steiner, Frank Cappuccio
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Patent number: 6451598Abstract: Cell fusion assays for identifying antiviral compounds are provided. In the cell fusion assays of the subject invention, a first cell that stably expresses on its surface an envelope protein of an enveloped virion and a second cell that stably expresses a receptor for the envelope protein on its surface are employed. The first and second cells each contain one component of a two component Tat reporter system that produces a detectable product in the presence of cell fusion. In practicing the subject screening methods, the first and second cells are first contacted with each other under cell fusion conditions in the presence of a candidate inhibitory agent. Next, the presence or absence of the detectable product is detected. Finally, the inhibitory activity of the candidate agent is derived from the presence or absence of the detectable product. Also provided are high throughput embodiments of the subject methods.Type: GrantFiled: February 7, 2001Date of Patent: September 17, 2002Assignee: The Regents of the University of CaliforniaInventors: Mark A. Goldsmith, Yun You
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Patent number: 6448039Abstract: The present invention provides elements derived from a human RANTES promoter that induce expression of a heterologous coding sequence. The invention further provides expression vectors comprising the elements, and host cells comprising the expression vectors. The invention further provides methods of inducing the expression of a heterologous protein in a host.Type: GrantFiled: June 30, 1999Date of Patent: September 10, 2002Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Peter J. Nelson, Alan M. Krensky, Benjamin D. Ortiz
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Patent number: 6444418Abstract: Aqueous solutions comprising a polysaccharide oncotic agent, a physiologically compatible buffer, a simple hexose sugar, dissolved chloride salts of calcium, sodium and magnesium, and a dissolved organic salt of sodium are disclosed. The solutions are effective substitutes for blood and may be used to preserve the biological integrity of the organs of a mammalian donor organism as shown by superior anatomical integrity of cryopreserved organs and tissues of subjects perfused with the solution. The solutions may be used for maintaining a partially or substantially completely exsanguinated subject at normal temperatures and at temperatures substantially below those normally maintained by a mammal and may be used in conjunction with hypobaric environments to maintain such partially or completed exsanguinated subjects alive without infusing blood back into the subject.Type: GrantFiled: July 18, 1997Date of Patent: September 3, 2002Assignee: BioTime, Inc.Inventors: Paul E. Segall, Hal Sternberg, Harold D. Waitz, Judith M. Segall