Patents by Inventor Jianzhong Zhu

Jianzhong Zhu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7179492
    Abstract: This invention involves a traditional Chinese medical preparation, its preparation and use. The present Chinese medicine that treats periodontitis is a pharmaceutically acceptable oral preparation containing fleece-flower, dried rehmanria, licorice, fresh-water turtle shell, dogwood fruit, dodder seed, derla andrographis and Tokyo violet herb as active ingredients and supplementary material. By adopting supercritical CO2 fluid extraction technique for some materials, the containing of the effective ingredients of the preparation are ensured. With a novel and reasonable formula and definite curative effects, this invention provides periodontitis sufferers with a reliable medicine.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: February 20, 2007
    Inventor: Jianzhong Zhu
  • Publication number: 20050170009
    Abstract: This invention involves a traditional Chinese medical preparation, its preparation and use. The present Chinese medicine that treats periodontitis is a pharmaceutically acceptable oral preparation containing fleece-flower, dried rehmanria, licorice, fresh-water turtle shell, dogwood fruit, dodder seed, derla andrographis and Tokyo violet herb as active ingredients and supplementary material. By adopting supercritical CO2 fluid extraction technique for some materials, the containing of the effective ingredients of the preparation are ensured. With a novel and reasonable formula and definite curative effects, this invention provides periodontitis sufferers with a reliable medicine.
    Type: Application
    Filed: August 19, 2002
    Publication date: August 4, 2005
    Applicant: JIANZHONG ZHU
    Inventor: Jianzhong Zhu
  • Patent number: 6361672
    Abstract: The present invention is a multiple channel electrophoresis system which includes a multiple laser diode illumination source. The multiple laser diode illumination source has a plurality of individual laser diodes, each of which is situated so as to provide independent fluorescence inducing illumination to one of the electrophoresis channels in the multiple channel electrophoresis system. The channels in the multiple channel electrophoresis system can be of many embodiments. And use of the present invention system in a multiple angle light scattering mode is also described.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: March 26, 2002
    Assignee: Transgenomic, Inc.
    Inventors: Jianzhong Zhu, Robert C. Fry, Arthur P. D'Silva
  • Patent number: 6008055
    Abstract: Systems and methods for inducing and detecting sample analyte(s) identifying fluorescence are disclosed. In particular, a system which includes at least two fiber optic means, within a "throw-away" modular component system component with at least four ports, in which sample analyte fluorescence is caused to occur, by the application of energy to sample analyte(s), is disclosed. The present invention system provides that sample analyte(s) fluorescence inducing energy be entered via an optic fiber means and that produced fluorescence be provided to a detector system via a second optic fiber means. A preferred source of sample analyte(s) fluorescence inducing energy includes lasers, and a preferred method by which to provide sample analyte(s) to the present invention system involves electrophoresis.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: December 28, 1999
    Assignee: Transgenomic, Inc.
    Inventors: Jianzhong Zhu, Arthur P. D'Silva
  • Patent number: 6002478
    Abstract: Disclosed are a laser ablation system and method for determining the presence of trace elements in liquid samples such as oils, and/or in powder samples. A sample containing microporous membrane is utilized to prevent "splashing", "splattering" and/or "scattering" of liquid and/or powder sample when laser contained sample effectively "nebulizing" energy is applied. The present invention is typically used in combination with an inductively coupled plasma and a detector system, such as an Atomic Emission Spectrometer or Mass Spectrometer.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: December 14, 1999
    Assignee: Transgenomic Inc.
    Inventor: Jianzhong Zhu
  • Patent number: 5597467
    Abstract: A system for interfacing Capillary Zone Electrophoresis (CZE) systems to Inductively Coupled Plasma-Mass Spectrometer (ICP-MS) sample analysis systems is disclosed. The interface system includes a Sample Introduction Electrophoresis Capillary Tube as an integral part of a modified Direct Injection Nebulizer (DIN) system. During use sample components separated by (CZE) are entered to the modified (DIN) via a sample introduction electrophoresis capillary tube present therein, in which modified (DIN) they are mixed with an entered make-up liquid. The make-up liquid is conductive and serves to make electrophoresis effecting electrical contact to the end of the sample introduction electrophoresis capillary tube in the modified (DIN).
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: January 28, 1997
    Assignee: Cetac Technologies Inc.
    Inventors: Jianzhong Zhu, Daniel R. Wiederin
  • Patent number: 5454860
    Abstract: A system and method of use for providing nearly one-hundred (100%) percent of volatile component(s) present in a liquid solution as a gaseous phase volatile component(s) sample to a sample analysis system, at relatively sequentially constant buffered pressure and flow rate, is disclosed. The present invention also provides for quick, immediate and active removal of a remaining liquid solution mixture entered thereto to reduce carry-over contamination. The present invention is particularly well suited for use with flame and plasma based sample analysis systems and its use serves to greatly increase achievable stability of their operation, and sensitivity to volatile component(s) such as, As, Se, Sb, Sn, Hg, B and Te.
    Type: Grant
    Filed: January 4, 1994
    Date of Patent: October 3, 1995
    Assignee: Cetac Technologies Inc.
    Inventor: Jianzhong Zhu
  • Patent number: 5454274
    Abstract: A sequential combination solvent removal system comprising at least one low temperature condenser solvent removal system interconnected to at least one enclosed filter solvent removal system is described. The sequential combination solvent removal system is capable of providing stable levels of solvent vapor in exiting mixtures of solvent vapor and nebulized sample particles, whether the solvent is aqueous or organic, and regardless of the type of sample solution nebulizer used to provide nebulized sample solution droplets to a preceding desolvation system, or of the flow rate of solvent vapor into said sequential combination solvent removal system. In the preferred embodiment a low temperature condenser solvent removal system is first in line and is followed by a functionally attached enclosed filter solvent removal system.
    Type: Grant
    Filed: May 23, 1994
    Date of Patent: October 3, 1995
    Assignee: Cetac Technologies Inc.
    Inventor: Jianzhong Zhu
  • Patent number: 5432096
    Abstract: Spectrophotometric sample analysis systems, and methods of their use, capable of "simultaneously" detecting, quantifying, displaying and/or recording energy absorption factors, and ratios of various energy absorbtion factors, regarding a multiplicity of single frequency electromagnetic waves in a beam of multiple single wavelength electromagnetic waves which is caused to pass through a sample analyte containing sample solution, are disclosed.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: July 11, 1995
    Assignee: CETAC Technologies Inc.
    Inventor: Jianzhong Zhu
  • Patent number: 5400665
    Abstract: An efficient sample introduction system and method of use, for accepting liquid sample solutions, nebulizing them to form nebulized sample solution droplets, desolvating and removing solvent therefrom, and introducing the resulting desolvated nebulized sample particles to sample analysis systems is disclosed. In the preferred embodiment a flow of heated gas is caused to flow over the outer surface of a coiled essentially tubular shaped enclosed filter to remove solvent vapor which diffuses through the coiled essentially tubular shaped enclosed filter while a mixture of desolvated nebulized sample particles and solvent vapor is caused to flow therethrough. A modified embodiment utilizes a low temperature condenser in place of the heated gas flow. Nebulization of sample solutions is accomplished by use of high efficiency ultrasonic or direct injection micro nebulizer systems. Desolvation is performed in a desolvation chamber in which heating elements provide a temperature sufficient to vaporize solvent present.
    Type: Grant
    Filed: March 3, 1993
    Date of Patent: March 28, 1995
    Assignee: Cetac Technologies Incorporated
    Inventors: Jianzhong Zhu, Daniel R. Wiederin, John E. Sutton
  • Patent number: 5259254
    Abstract: An efficient sample introduction system and method of use, for accepting liquid sample solutions, nebulizing them to form nebulized sample solution droplets, and introducing the nebulized sample solution droplets to sample analysis systems is disclosed. In the preferred embodiment desolvation of produced nebulized sample solution droplets, and solvent removal, to provide nebulized sample particles is performed prior to entering sample to a sample analysis system. Nebulization of sample solutions is accomplished by use of high efficiency ultrasonic nebulizers and solvent removal is accomplished by use of high efficiency enclosed filter and solvent vapor removal gas flow or low temperature condenser systems. The sample introduction system provides improved sample solution nebulization, desolvation and solvent removal, as well as reduced sample loss and carry-over of sample from one analysis procedure to a subsequent analysis procedure, as compared to other systems which perform a similar overall function.
    Type: Grant
    Filed: September 25, 1991
    Date of Patent: November 9, 1993
    Assignee: Cetac Technologies, Inc.
    Inventors: Jianzhong Zhu, John E. Sutton
  • Patent number: 5192865
    Abstract: An system and method for use for analyzing samples in mass spectrometers using afterglow metastable species at atmospheric pressure to controllably dissociate, fragment and ionize sample is disclosed. Metastable species are created at atmospheric pressure by application of adjustable intensity and/or frequency electrical energy in one portion of a modular electric discharge chamber, then are caused to interact with sample in a distally located portion of the electric discharge chamber, termed the "afterglow" portion, to produce ionized sample molecules and ionized sample fragments etc. The system and method can be used with any source of sample but a preferred embodiment utilizes an ultrasonic nebulizer to nebulize sample solutions, such as conventional liquid chromatography system effluents, into sample solution droplets, followed by desolvation thereof to provide nebulized sample particles, prior to sample entry to the "afterglow" portion of an electric discharge chamber.
    Type: Grant
    Filed: January 14, 1992
    Date of Patent: March 9, 1993
    Assignee: Cetac Technologies Inc.
    Inventor: Jianzhong Zhu
  • Patent number: D548065
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: August 7, 2007
    Assignee: Peak Innovations Inc.
    Inventors: Jianzhong Zhu, Wei Min Zhu
  • Patent number: D568727
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: May 13, 2008
    Assignee: Peak Innovations Inc.
    Inventors: Simon Walker, Mark Hopkinson, Jianzhong Zhu, Wei Min (Karen) Zhu