Patents by Inventor Huiyan Guo
Huiyan Guo 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: 8828739Abstract: Rapid lateral flow immunoassays have an extensive history of use in both the clinical and home settings. These devices are used to test for a variety of analytes, such as drugs of abuse, hormones, proteins, urine or plasma components and the like. The present invention provides an improved procedural control that indicates to the test user that at least a portion of the applied sample has passed through the test result zone of the test strip, and optionally that the test is complete and the test results may be read.Type: GrantFiled: May 25, 2012Date of Patent: September 9, 2014Assignee: Alere Switzerland GmbHInventors: Huiyan Guo, Min Wang, Tao Shang, Hui-Kang Chen, Fei Gao
-
Publication number: 20120237923Abstract: Rapid lateral flow immunoassays have an extensive history of use in both the clinical and home settings. These devices are used to test for a variety of analytes, such as drugs of abuse, hormones, proteins, urine or plasma components and the like. The present invention provides an improved procedural control that indicates to the test user that at least a portion of the applied sample has passed through the test result zone of the test strip, and optionally that the test is complete and the test results may be read.Type: ApplicationFiled: May 25, 2012Publication date: September 20, 2012Inventors: Huiyan Guo, Min Wang, Tao Shang, Hui-Kang Chen, Fei Gao
-
Patent number: 8193002Abstract: Rapid lateral flow immunoassays have an extensive history of use in both the clinical and home settings. These devices are used to test for a variety of analytes, such as drugs of abuse, hormones, proteins, urine or plasma components and the like. The present invention provides an improved procedural control that indicates to the test user that at least a portion of the applied sample has passed through the test result zone of the test strip, and optionally that the test is complete and the test results may be read.Type: GrantFiled: October 30, 2008Date of Patent: June 5, 2012Assignee: Alere Switzerland GmbHInventors: Huiyan Guo, Min Wang, Tao Shang, Hui-Kang Chen, Fei Gao
-
Patent number: 7595196Abstract: The present invention is directed novel lateral flow devices for analyzing liquid samples. The devices contain chemical test strips and are useful for testing liquids for physical properties, such as pH, specific gravity, contamination or adulteration, the presence of proteins or blood, and the like. The test strips contain a bibulous material, a filter element, a reagent pad, and in some embodiments also contain a hydrophobic member and a cover. Any fluid can be tested, for example, urine or other body fluids, environmental samples, biological samples, clinical samples, or food and beverage samples.Type: GrantFiled: September 23, 2004Date of Patent: September 29, 2009Assignee: Oakville Hong Kong Company LimitedInventors: Huiyan Guo, Simin Zhu, Welson Wu, Soar Gao, Dale Dai
-
Publication number: 20090111171Abstract: Rapid lateral flow immunoassays have an extensive history of use in both the clinical and home settings. These devices are used to test for a variety of analytes, such as drugs of abuse, hormones, proteins, urine or plasma components and the like. The present invention provides an improved procedural control that indicates to the test user that at least a portion of the applied sample has passed through the test result zone of the test strip, and optionally that the test is complete and the test results may be read.Type: ApplicationFiled: October 30, 2008Publication date: April 30, 2009Applicant: INVERNESS MEDICAL SWITZERLAND GMBHInventors: Huiyan Guo, Min Wang, Tao Shang, Hui-Kang Chen, Fei Gao
-
Patent number: 7459314Abstract: Rapid lateral flow immunoassays have an extensive history of use in both the clinical and home settings. These devices are used to test for a variety of analytes, such as drugs of abuse, hormones, proteins, urine or plasma components and the like. The present invention provides an improved procedural control that indicates to the test user that at least a portion of the applied sample has passed through the test result zone of the test strip, and optionally that the test is complete and the test results may be read.Type: GrantFiled: February 10, 2004Date of Patent: December 2, 2008Assignee: Inverness Medical Switzerland GmbHInventors: Huiyan Guo, Min Wang, Tao Shang, Hui-Kang Chen, Fei Gao
-
Patent number: 7264776Abstract: A biological sample collection and test kit and a method of using the kit are disclosed in the application. The kit includes a swab, having a sample collection portion, a cover for covering the sample collection portion of the swab for hygienic purpose. Also disclosed is a package for the swab and the cover.Type: GrantFiled: July 12, 2004Date of Patent: September 4, 2007Inventors: Huiyan Guo, Hsaioho Edward Tung, Shaomin Sun, Yuchang Wu, Rong Yang, Yun Ling
-
Patent number: 7114403Abstract: The present invention is a device for conveniently collecting and storing liquid samples, as well as applying an aliquot of the sample to a test device, such as a lateral flow immunoassay. The present invention comprises an absorbent swab and a dropper container containing an expression means for expressing the collected sample from the swab. After the collected sample has been expressed into the reservoir of the device, the device is capped. The device can be inverted over a test device, the sides of the reservoir squeezed and an aliquot of the sample applied, in a drop-wise manner, to the sample application well of the test device. The present invention is particularly useful for collecting viscous samples, such as saliva or oral fluid, in a drug of abuse testing setting.Type: GrantFiled: May 27, 2004Date of Patent: October 3, 2006Assignee: Oakville Hong Kong Co., LTDInventors: Yuchang Wu, Hsiaoho Edward Tung, Huiyan Guo, Fei Gao, Jielin Dai, Haipeng Hu
-
Publication number: 20060040258Abstract: The present invention provides water-soluble conjugates and methods of using them in diagnostic and detection assays. Devices for performing detection and quantitation assays are also provided. In various embodiments the conjugates are useful in immunoassays and later flow assays. The invention also provides methods of preparing the conjugates that result in higher yields and higher sensitivities for the assays.Type: ApplicationFiled: August 23, 2004Publication date: February 23, 2006Inventors: Huiyan Guo, Lorraine Bautista, Zurong Wu, Jinn-nan Lin
-
Publication number: 20050106753Abstract: The present disclosure includes but is not limited to a device for collecting samples, especially liquid samples to be tested for the presence of an analyte, especially for drugs of abuse, antibodies, antigens and biological moieties such as steroids and glucose. In particular, the disclosure describes improvements in collection device design that provide a simple, non-invasive, non-hazardous method of collecting samples from a subject or patient, especially liquid samples such as saliva, oral fluid and urine. The collected sample can be stored in the disclosed device and the device can be used to apply, in a drop-wise manner, an aliquot of the sample directly to a test device.Type: ApplicationFiled: July 12, 2004Publication date: May 19, 2005Inventors: Yuchang Wu, Fei Gao, Huiyan Guo
-
Publication number: 20050079629Abstract: The present invention is directed novel lateral flow devices for analyzing liquid samples. The devices contain chemical test strips and are useful for testing liquids for physical properties, such as pH, specific gravity, contamination or adulteration, the presence of proteins or blood, and the like. The test strips contain a bibulous material, a filter element, a reagent pad, and in some embodiments also contain a hydrophobic member and a cover. Any fluid can be tested, for example, urine or other body fluids, environmental samples, biological samples, clinical samples, or food and beverage samples.Type: ApplicationFiled: September 23, 2004Publication date: April 14, 2005Inventors: Huiyan Guo, Simin Zhu, Welson Wu, Soar Gao, Dale Dai
-
Publication number: 20050009200Abstract: A biological sample collection and test kit and a method of using the kit are disclosed in the application. The kit includes a swab, having a sample collection portion, a cover for covering the sample collection portion of the swab for hygienic purpose. Also disclosed is a package for the swab and the cover.Type: ApplicationFiled: July 12, 2004Publication date: January 13, 2005Inventors: Huiyan Guo, Hsiaoho Tung, Shaomin Sun, Yuchang Wu, Rong Yang, Yun Ling
-
Publication number: 20040237674Abstract: The present invention is a device for conveniently collecting and storing liquid samples, as well as applying an aliquot of the sample to a test device, such as a lateral flow immunoassay. The present invention comprises an absorbent swab and a dropper container containing an expression means for expressing the collected sample from the swab. After the collected sample has been expressed into the reservoir of the device, the device is capped. The device can be inverted over a test device, the sides of the reservoir squeezed and an aliquot of the sample applied, in a drop-wise manner, to the sample application well of the test device. The present invention is particularly useful for collecting viscous samples, such as saliva or oral fluid, in a drug of abuse testing setting.Type: ApplicationFiled: May 27, 2004Publication date: December 2, 2004Inventors: Yuchang Wu, Hsiaoho Edward Tung, Huiyan Guo, Fei Gao, Jielin Dai, Haipeng Hu
-
Publication number: 20040184954Abstract: The present invention is a device for collecting and testing a liquid sample, for example a viscous sample, such as oral fluid or saliva. The present invention provides a simple and sanitary means of collecting a sample, testing a portion of the sample for one or more analytes of interest, and storing the remaining sample. The stored sample may be used at a later time for confirmation of the test results. In certain embodiments of the present invention, the reservoir of stored sample may be removed from the device prior to storage. The present invention is particularly useful of drug of abuse testing, as well as indicators of health and/or disease state.Type: ApplicationFiled: November 19, 2003Publication date: September 23, 2004Inventors: Huiyan Guo, Hsaioho Edward Tung, Eleanor M.S. McCarthy, Ying Yang, Yuchang Wu
-
Publication number: 20040161859Abstract: Rapid lateral flow immunoassays have an extensive history of use in both the clinical and home settings. These devices are used to test for a variety of analytes, such as drugs of abuse, hormones, proteins, urine or plasma components and the like. The present invention provides an improved procedural control that indicates to the test user that at least a portion of the applied sample has passed through the test result zone of the test strip, and optionally that the test is complete and the test results may be read.Type: ApplicationFiled: February 10, 2004Publication date: August 19, 2004Inventors: Huiyan Guo, Min Wang, Tao Shang, Hui-Kang Chen, Fei Gao
-
Patent number: 6368873Abstract: This invention features methods and kits for identifying human urine samples for forensic purposes.Type: GrantFiled: April 9, 1998Date of Patent: April 9, 2002Assignee: Applied Biotech, Inc.Inventors: Shong-Ho Chang, Huiyan Guo, Trang Nguyen, Ker-Kong Tung, Yun-Fei Wei
-
Patent number: 5690929Abstract: The present invention describes methods for using methioninase as an antitumor reagent in anti-methionine chemotherapy. Specifically, methioninase is used to slow or stop cell division which can be enhanced with competitive inhibitors of methionine. In addition, methioninase can be used in combination with chemotherapeutic agents to increase the therapeutic effectiveness of the agent by inducing cell cycle synchronization.Type: GrantFiled: April 24, 1995Date of Patent: November 25, 1997Assignee: AntiCancer, Inc.Inventors: Valeryi Lishko, Yuying Tan, Qinghong Han, Mingxu Xu, Huiyan Guo