Patents Examined by Brett Ozga
  • Patent number: 6436663
    Abstract: A method of simultaneously staining for various opportunistic pathogens stains tissues sections with Ziehl-Neelsen carbo-fuchsin, Schiff reagent, and a mixture of metanil yellow and stock fast green solution. In particular, the method is useful for staining tissue sections suspected of containing opportunistic pathogens commonly found in AIDS patients, i.e., acid fast mycobacteria, fungus, and Pneumocystis carinii.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: August 20, 2002
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Mark H. Potts
  • Patent number: 6383508
    Abstract: A deer and geese repellent formulation and method for warding off geese or deer from a shrub or plant. The formulation is an admixture of water, Rosemary oil emulsion, mint oil emulsion, a thickener, white distilled vinegar and dried eggs. The formulation can be applied to a support medium, such as clay or a length of rope, and then associated with the vegetation to be protected. The formulation can also be formed into a viscous composition and used in containers near the vegetation to be protected.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: May 7, 2002
    Inventor: James Messina
  • Patent number: 6379900
    Abstract: Novel methods for the synthesis of 8-nitroguanine are provided. Compositions comprising 8-nitroguanine, made by the novel synthetic methods are also provided herein. Methods of use of 8-nitroguanine, made by the novel synthetic methods, as a standard for detection of 8-nitroguanine in samples are also encompassed within the scope of the present invention. The present invention further concerns methods of predicting organ transplant rejection and detecting exposure to environmental stressors, such as ionizing radiation, toxic chemicals or infectious agents, by detecting 8-nitroguanine in one or more samples from a transplant recipient or an organism exposed to stress.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: April 30, 2002
    Assignee: Conceptual Mindworks, Inc.
    Inventor: Eric A. Holwitt
  • Patent number: 6372451
    Abstract: A novel aurophosphate stain for staining a slide-mounted brain tissue slice or section to label myelin therein, the method of staining, and the method of making the stain. The stain is potassium aurophosphate or sodium aurophosphate produced as the reaction product of an aurochloride and a dibasic potassium or sodium phosphate. Slide-mounted brain tissue slices are stained by immersing the slice in a warn solution of the aurophosphate. The stained slice may be intensified by immersing the slide-mounted stained tissue slice in a potassium tetrachloroaureate solution. The stained or intensified slice can be fixed by immersion in a sodium thiosulfate solution. Large bundles of stained myelin appear deep red-brown, while smaller bundles and individual fibers appear black.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: April 16, 2002
    Inventor: Laurence C. Schmued
  • Patent number: 6372265
    Abstract: The anti-oxidant substance according to the invention is obtained by adding calcium ion powder to a powdery curcuma. The calcium ion powder is obtained by adding calcium powder with ionic water and drying it and the anti-oxidant substance according to the invention has an excellent anti-oxidant effect and is capable of being safely ingested.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: April 16, 2002
    Assignee: Yojogen Co., Ltd.
    Inventor: Kahee Saito
  • Patent number: 6368818
    Abstract: The invention provides a biochemical method for visualizing cellular organelles (such as centrosome) and/or cytoskeletons (such as microtubules) through the use of crystallizing agents (such as tetrazolium salts), a kit containing crystallizing agents adapted for such uses, and to methods particularly for detecting neoplastic cells in a tissue sample, suspension, or a fluid sample by examining the cells for abnormalities of cellular organelles (such as centrosome) and/or cytoskeletons (such as microtubules) in the number and shapes.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: April 9, 2002
    Inventor: Qingzhong Kong
  • Patent number: 6365153
    Abstract: Mechanically elongated neuronal cells and methods of mechanically producing elongated cells are provided. Also provided are methods for transplanting elongated neuronal cells into an animal for treatment of spinal cord injuries and other nerve injuries.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: April 2, 2002
    Inventor: Douglas H. Smith
  • Patent number: 6365198
    Abstract: A pharmaceutical preparation for the treatment of gastrointestinal ulcers and hemorrhoids in humans and animals and a method of preparation for this composition are provided here. The preferred composition consists of an alcoholic extract of Huangqin, Huanglian, Huangbo, Opuntia and Pheretima dissolved in vegetable oil from where alcohol is essentially removed by evaporation. The composition is then packaged in a soft gelatin capsule for oral administration or mixed with wax to make an ointment suitable for rectal administration.
    Type: Grant
    Filed: January 28, 2001
    Date of Patent: April 2, 2002
    Assignee: Gulf Pharmaceutical Industries
    Inventor: Sarfaraz K. Niazi
  • Patent number: 6346402
    Abstract: Relating to an enzyme capable of efficiently converting a ketone compound to an optically active amino compound by transamination, and a process for preparing an optically active amino compound using the enzyme. An (S)-&agr;-phenethylamine:pyruvate transaminase, which acts on (S)-&agr;-phenethylamine and a ketone compound, thereby catalyzing transamination for forming acetophenone and an amino compound corresponding to the ketone compound; a process for preparing an optically active amino compound using the transaminase; and a method for culturing a microorganism for producing the above transaminase, comprising adding to a medium one or more compounds selected from the group consisting of propylamine, 1-butylamine, 2-butylamine, 2-pentylamine, isopropylamine and isobutylamine as an inducer for the enzyme when a microorganism for producing (S)-&agr;-phenethylamine:pyruvate transaminase is cultured.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: February 12, 2002
    Assignee: Kaneka Corporation
    Inventors: Akira Iwasaki, Yukio Yamada, Yasuhiro Ikenaka, Yoshihiko Yasohara, Junzo Hasegawa
  • Patent number: 6346515
    Abstract: A collagen matrix comprises collagen fibrils which are cross-linked to one another by reducing sugar or a reducing sugar derivative. The collagen matrix may be formed into a membrane useful in guided tissue regeneration.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: February 12, 2002
    Assignee: Colbar R & D Ltd.
    Inventors: Sanhu Pitaru, Matityahu Noff
  • Patent number: 6342252
    Abstract: A process of producting bio-organic calcium composition from animal bones comprises steps of preliminarily removing lipids from the bones by steaming/boiling; milling the bones to form a bone slurry; adding neutral lipase to conduct secondary lipid removing; adding protease to the bone slurry to produce a primary enzymatic decomposed liquid; adding papain to the primary enzymatic decomposed liquid for producing secondary enzymatic decomposed liquid; and acidifying/activating of the secondary enzymatic decomposed liquid to produce a final product. The product produced by this process contains bio-organic calcium composition readily absorbable by human body.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: January 29, 2002
    Assignee: Tianjin Tianshi Group Co., Ltd.
    Inventors: Juntong Song, Xigui Yuan
  • Patent number: 6333305
    Abstract: The antibiotic TKR2999 having the physicochemical properties described below and its pharmacologically acceptable salt: (1) FAB-MS m/z 971 [M+H)]+, (2) the molecular formula: C44H78N10O14, and high-resolution FAB-MS m/z 971.5776 [M+H]+, (3) the ultraviolet absorption spectrum in methanol has an end absorption, (4) the infrared absorption spectrum by KBr method shows the major absorption wave numbers at 3320, 2920, 1680, 1540, 1210, 1140, 840, 800, and 720 cm−1, (5) aspartic acid, threonine, serine, glycine, alanine, &bgr;-alanine, and ornithine are detected by the amino acid analysis using ninhydrin reaction, and (6) the solubility is that it is soluble in methanol, and practically insoluble in hexane, chloroform, and water.
    Type: Grant
    Filed: August 2, 2000
    Date of Patent: December 25, 2001
    Assignee: Takara Shuzo Co., Ltd.
    Inventors: Kazutoh Takesako, Naoyuki Awazu, Mitsuhiro Ueno, Yoshimi Onishi, Ikunoshin Kato
  • Patent number: 6329167
    Abstract: The present invention relates to an appartus and method for use in pre-screening or determining the adequacy of target cells in specimen prior to conducting further diagnostic testing or analysis of the specimen. More specifically, the present invention concerns a device and method which uses light scatter techniques to detect the presence of a target cell in a specimen.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: December 11, 2001
    Inventor: Bruce K. Patterson
  • Patent number: 6329162
    Abstract: A method to assess the level of folate in a biological sample comprises: providing said sample with glycine N-methyltransferase (GMT) and with an excess of S-adenosyl methionine (SAM) and of glycine; providing a control which contains no folate with said GMT and excess SAM and glycine in comparable amounts to those provided to the sample; and comparing the concentration of at least one product formed in the sample with the concentrations of said product formed in the control, whereby the difference in levels of said product in the sample as compared to the control is directly proportional to the level of folate in the sample.
    Type: Grant
    Filed: April 17, 2000
    Date of Patent: December 11, 2001
    Assignee: AntiCancer, Inc.
    Inventors: Qinghong Han, Li Tang, Mingxu Xu, Yuying Tan, Shigeo Yagi
  • Patent number: 6315994
    Abstract: A cell culture medium and hydrogel matrix for long term storage and proliferation of cells is provided. The cell culture medium and hydrogel matrix include an effective amount of polar amino acids, the polar amino acids selected from the group consisting of arginine, lysine, histidine, glutamic acid, and aspartic acid. The cell culture medium comprises about 5 to about 150 mM of polar amino acids. The hydrogel matrix comprises about 3 to about 150 mM of polar amino acids. Arginine and glutamic acid are preferably supplemented in the cell culture medium. Arginine, lysine, and glutamic acid are preferably supplemented in the hydrogel matrix. A method of maintaining viability and functioning of a transplant is also provided. The method of maintaining viability of a transplant includes encapsulating the cells in a hydrogel matrix and injecting the encapsulated cells into the host organism.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: November 13, 2001
    Inventors: Anton-Lewis Usala, Richard Chris Klann
  • Patent number: 6309678
    Abstract: The invention relates to a novel process for the isolation of a hepatoprotective agent Silymarin from the seeds of the plant Silybum marianum comprising (i) Precooling the seeds to (−) 20° C. for 24 hours in a deep freezer/cold room. (ii) Powdering the cooled seeds in a hammer mill, fitted with about 40 mesh discharge screen. (iii) Defatting the seeds by extracting with hexane in a soxhlet type extractor to remove the total quantity of fatty oil without using a scrain. (iv) Extracting the defatted seeds with acetonitrile at 20-30° C. to extract silymarin fraction. (v) Concentration of the sensitive silymarin fraction under vacuum in a agitated wiped thin film evaporator (vi) stirring the silymarin such dry powder with cold dichloromethane at 5° C. followed by filtration and drying with a slow purge of nitrogen gas. (vii) Further purification of silymarin by suspending in 5 times its weight of acetonitrile and precipitating by 8-12 times its weight of water at 20° C.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: October 30, 2001
    Assignee: Council of Scientific and Industrial Research
    Inventors: Atul Prakash Kahol, Kiran Lata Singh, Sudeep Tandon, Sushil Kumar
  • Patent number: 6303577
    Abstract: Use of a peptide compound of formula (H2N-X1-Thr-X2-CO)n-R  (I) wherein X1, X2, n and R have the meanings stated in the description for preparing a pharmaceutical composition useful in the treatment of Systemic Lupus Erythematosus.
    Type: Grant
    Filed: May 4, 1999
    Date of Patent: October 16, 2001
    Assignee: Tecnogen S.C.p.A.
    Inventors: Maria Marino, Maria Rossi, Giorgio Fassina
  • Patent number: 6287799
    Abstract: Process for the preparation of a &bgr;-lactam antibiotic in which a &bgr;-lactam nucleus is subjected to an enzymatic acylation reaction with the aid of an acylation agent at a molar ratio of acylation agent/&bgr;-lactam nucleus of less than 2.5, with the acylation agent and/or the &bgr;-lactam nucleus being supersaturated in the reaction mixture during at least part of the acylation reaction. In the process, a concentrated slurry or solution, for instance, of the &bgr;-lactam nucleus and/or the acylation agent with a different pH or a higher temperature than the pH or temperature at which the acylation reaction is carried out is added to the reaction mixture during the acylation reaction. Both the &bgr;-lactam nucleus and the acylation agent may be supersaturated in the reaction mixture.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: September 11, 2001
    Assignee: DSM N.V.
    Inventors: Theodorus Johannes Godfried Marie Van Dooren, Johanna Christina Maria Smeets, Harold Monro Moody
  • Patent number: 6287827
    Abstract: Fermentation of Nocardia sp. ATCC-202099 in the presence of a halogen- or hydroxy-substituted tryptophan precursor yields a novel corresponding halogen- or hydroxy-substituted nocathiacin compound which has broad spectrum antibiotic activity against Gram-positive bacteria and has in vivo efficacy in animals.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: September 11, 2001
    Assignee: Bristol-Myers Squibb Company
    Inventors: Wenying Li, John E. Leet, Kin S. Lam
  • Patent number: 6277555
    Abstract: A process for preparing pliable soft tissue specimen which are resistant to cracking and devoid of viable cells includes the steps of treating native soft tissue obtained from a donor by a gradually increasing gradient of aliphatic alcohol or other suitable water miscible polar organic solvent until the last alcohol (or other solvent) solution has at least 25% by volume of the organic liquid. Thereafter, the tissue specimen is treated with a solution containing glycerol or low molecular weight (<1000 D) polyethylene glycol, and polyethylene glycol of a molecular weight between approximately 6,000 to 15,000 D and heparin. Thereafter, the tissue specimen is briefly immersed in aqueous heparin solution, frozen and lyophilized. The tissue specimen is suitable for implantation as a homograft or xenograft, with or without rehydration.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: August 21, 2001
    Assignee: The International Heart Institute of Montana Foundation
    Inventors: Carlos M. G. Duran, David T. Cheung, David C. Pang