Patents by Inventor Zheng Zheng
Zheng Zheng 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).
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Publication number: 20130114079Abstract: The invention provides an optical phase device, method and system. The optical phase device consists of a transparent dielectric substrate, a multilayer stack of dielectrics and a buffer layer. The refractive index of the transparent dielectric substrate, the multilayer stack of dielectrics and the buffer layer are all larger than that of the external medium. For the wavelength of the incident beam, the optical phase device has a phase variation in the angular range [?, ?] and the critical angle for total reflection on the interface between the buffer layer and the external medium adjacent to the buffer layer is ?, ?<?. The optical device has both low loss and large phase variation, which leads to a large Goos-Hanchen shift. As a dispersion compensation component, it can produce larger, tunable dispersions, and different dispersion compensations can be obtained by adjusting the operating angle or parameters in the structure.Type: ApplicationFiled: October 12, 2011Publication date: May 9, 2013Applicant: BEIHANG UNIVERSITYInventors: Zheng Zheng, Yuhang Wan, Xin Zhao, Zhiting Lu, Jingyi Guan
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Patent number: 8416416Abstract: The invention provides an SPR measuring method and a measuring system thereof. According to the measuring method, first, a linear-polarized coherent broadband pulsed light beam is incident onto a surface of a sample under detection of a SPR sensing device to cause reflection; next, a time-domain monotonous chirp is performed on the incident coherent broadband pulsed light and/or the SPR reflected light; finally, the time-domain monotonically chirped SPR reflected light beam is detected, and information of the SPR effect is obtained according to the detected signal. According to the invention, the spectrum detection method used in conventional slow wavelength interrogation is converted into the high-speed real-time detection of time-domain pulse shape signals. Thus, the procedure of the SPR reaction may be monitored closely, and dynamical curves with very high time resolution may be obtained, in that case, fast biochemical reaction procedures may be monitored.Type: GrantFiled: November 29, 2007Date of Patent: April 9, 2013Assignees: National Center for Nanoscience and Technology, Beihang UniversityInventors: Zheng Zheng, Yuhang Wan, Xin Zhao, Jinsong Zhu, Jiangfeng Fan
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Publication number: 20130018135Abstract: Provided are novel compositions comprising a polyarylene sulfide and at least one tin additive comprising a branched tin(II) carboxylate selected from the group consisting of Sn(O2CR)2, Sn(O2CR)(O2CR?), Sn(O2CR)(O2CR?), and mixtures thereof, where the carboxylate moieties O2CR and O2CR? independently represent branched carboxylate anions and the carboxylate moiety O2CR? represents a linear carboxylate anion. Articles comprising the novel compositions are also provided. In addition, methods to improve the thermal stability of polyarylene sulfides, and methods to improve the thermo-oxidative stability of polyarylene sulfides, through the use of the disclosed branched tin(II) carboxylates are provided. The polyarylene sulfide compositions are useful in various applications which require superior thermal resistance, chemical resistance, and electrical insulating properties.Type: ApplicationFiled: March 22, 2011Publication date: January 17, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Joachim C. Ritter, Joel M. Pollino, Michael T. Pottiger, Yefim Brun, Zheng-Zheng Huang, John C. Howe
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Publication number: 20130012092Abstract: A nonwoven web comprising bicomponent fibers. The fibers have continuous phases each of a first polyarylene sulfide (PAS) component and a polymer component. The polymer component may also be a second polyarylene sulfide. The first polyarylene sulfide component contains a tin or a zinc additive or both, and the first polyarylene sulfide component of any given fiber is at least partially exposed to the external surface of that fiber.Type: ApplicationFiled: March 22, 2011Publication date: January 10, 2013Inventors: Joel M. Pollino, Lakshmi Krishnamurthy, Joachim C. Ritter, Robert John Duff, Yefim Brun, Zheng-Zheng Huang, Zuohong Yin
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Publication number: 20130009333Abstract: A nonwoven web comprising bicomponent fibers. The fibers have continuous phases each of a first polyarylene sulfide (PAS) component and a polymer component. The polymer component may also be a second polyarylene sulfide. The first polyarylene sulfide component contains a tin or a zinc additive or both, and the first polyarylene sulfide component of any given fiber is at least partially exposed to the external surface of that fiber.Type: ApplicationFiled: March 17, 2011Publication date: January 10, 2013Inventors: Lakshmi Krishnamurthy, Zuohong Yin, Joachim C Ritter, Joel M Pollino, Michael T Pottiger, John C Howe, David Matthews Laura, JR., Harry Vaughn Samuelson, Robert John Duff, Zheng-Zheng Huang
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Publication number: 20130012638Abstract: This invention relates to methods for decreasing the complex viscosity of a polyarylene sulfide polymer melt while maintaining the molecular weight of the polyarylene sulfide with time. This invention also relates to polymer melt compositions comprising a polyarylene sulfide, wherein the complex viscosity of the composition is decreased relative to the complex viscosity of the native polyarylene sulfide measured under the same conditions, and the weight average molecular weight of the polyarylene sulfide is maintained. The methods of decreasing the complex viscosity of a polyarylene sulfide-containing polymer melt, and the polymer melt compositions so obtained, are useful in processes to produce fibers, films, nonwovens, and molded parts from polyarylene sulfides.Type: ApplicationFiled: March 16, 2011Publication date: January 10, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Joachim C. Ritter, Joel M. Pollino, Michael T. Pottiger, Zheng-Zheng Huang, Lakshmi Krishnamurthy, John C. Howe, Marios Avgousti, Zuohong Yin
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Publication number: 20130012671Abstract: A method for accelerating the curing of a polyarylene sulfide. The polyarylene sulfide is blended with a cure accelerator to form a mixture where the weight percentage of accelerator is between 0.2% and 15.0% of the total weight of the blend. The mixture is cured at 320° C. or above for at least 20 minutes. The cure accelerator is a compound selected from the group consisting of ionomers, hindered phenols, polyhydric alcohols, polycarboxylates, and mixtures of the foregoing.Type: ApplicationFiled: March 22, 2011Publication date: January 10, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Joel M Pollino, Joachim C Ritter, Robert John Duff, Zheng-Zheng Huang, Zuohong Yin
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Publication number: 20130011544Abstract: A method for stabilizing a polymeric structure against thermo-oxidative degradation is described. A polymeric core structure is provided with a skin layer that contains a skin resin in which the skin resin at least partially envelops a portion of the core structure. The skin structure then provides a barrier that thereby stabilizes the portion of the structure that is enveloped. The skin resin is made from a treated polyarylene sulfide.Type: ApplicationFiled: March 16, 2011Publication date: January 10, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Joel M. Pollino, Lakshmi Krishnamurthy, Joachim C. Ritter, Robert John Duff, Yefim Brun, Zheng-Zheng Zhuang, Zuohong Yin
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Publication number: 20130012637Abstract: An improved process for forming polyarylene sulfide fibers is provided. The process comprises forming at least one fiber from a polymer melt comprising a polyarylene sulfide and at least one tin additive comprising a branched tin(II) carboxylate. Using such a melt, the fiber forming continuity is improved compared to that of the native polyarylene sulfide melt processed under the same conditions.Type: ApplicationFiled: March 21, 2011Publication date: January 10, 2013Inventors: Joachim C. Ritter, Joel M. Pollino, Michael T. Pottiger, Lakshmi Krishnamurthy, John C. Howe, Harry Vaughn Samuelson, Marios Avgousti, Zheng-Zheng Huang, Robert John Duff
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Publication number: 20130005889Abstract: This invention relates to methods for decreasing the complex viscosity of a polyarylene sulfide polymer melt while maintaining the molecular weight of the polyarylene sulfide with time. This invention also relates to polymer melt compositions comprising a polyarylene sulfide, wherein the complex viscosity of the composition is decreased relative to the complex viscosity of the native polyarylene sulfide measured under the same conditions, and the weight average molecular weight of the polyarylene sulfide is maintained. The methods of decreasing the complex viscosity of a polyarylene sulfide-containing polymer melt, and the polymer melt compositions so obtained, are useful in processes to produce fibers, films, nonwovens, and molded parts from polyarylene sulfides.Type: ApplicationFiled: March 23, 2011Publication date: January 3, 2013Inventors: Joachim C Ritter, Joel M Pollino, Michael T Pottiger, Zheng-Zheng Huang, John C Howe, Yefim Brun
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Publication number: 20130005890Abstract: Provided are novel compositions comprising a polyarylene sulfide and at least one tin additive comprising a branched tin(II) carboxylate selected from the group consisting of Sn(O2CR)2, Sn(O2CR)(O2CR?), Sn(O2CR)(O2CR?), and mixtures thereof, where the carboxylate moieties O2CR and O2CR? independently represent branched carboxylate anions and the carboxylate moiety O2CR? represents a linear carboxylate anion. Articles comprising the novel compositions are also provided. In addition, methods to improve the thermal stability of polyarylene sulfides, and methods to improve the thermo-oxidative stability of polyarylene sulfides, through the use of the disclosed branched tin(II) carboxylates are provided. The polyarylene sulfide compositions are useful in various applications which require superior thermal resistance, chemical resistance, and electrical insulating properties.Type: ApplicationFiled: March 22, 2011Publication date: January 3, 2013Applicant: E I Du Pont De Nemours And CompanyInventors: Joachim C. Ritter, Joel M. Pollino, Michael T. Pottiger, Yefim Brun, Zheng-Zheng Huang, John C. Howe
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Publication number: 20120318136Abstract: A nonwoven felt for hot gas filtration. The fibers have a polyarylene sulfide (PAS) component that contains a zinc compound. In one embodiment, the PAS comprises at least one zinc(II) salt of an organic carboxylic acid. Also a method for filtering hot gases employing a bag made from a PAS component that contains a zinc or a zinc based additive.Type: ApplicationFiled: June 15, 2011Publication date: December 20, 2012Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: ROBERT JOHN DUFF, Zheng-Zheng Jenny Huang, Lakshmi Krishnamurthy, Rakesh Nambiar, Joel M. Pollino, Joachim C. Ritter, Harry Vaughn Samuelson, Cheng-Hang Chi
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Publication number: 20120272341Abstract: The present invention relates to transgenic animals, as well as compositions and methods relating to the characterization of gene function. Specifically, the present invention provides transgenic mice comprising disruptions in PRO226, PRO257, PRO268, PRO290, PRO36006, PRO363, PRO365, PRO382, PRO444, PRO705, PRO1071, PRO1125, PRO1134, PRO1155, PRO1281, PRO1343, PRO1379, PRO1380, PRO1387, PRO1419, PRO1433, PRO1474, PRO1550, PRO1571, PRO1572, PRO1759, PRO1904, PRO35193, PRO4341, PRO4348, PRO4369, PRO4381, PRO4407, PRO4425, PRO4985, PRO4989, PRO5737, PRO5800, PRO5993, PRO6017, PRO7174, PRO9744, PRO9821, PRO9852, PRO9873, PRO10196, PRO34778, PRO20233, PRO21956, PRO57290, PRO38465, PRO38683 or PRO85161 genes.Type: ApplicationFiled: May 16, 2012Publication date: October 25, 2012Inventors: Katherin E. Combs, Ling Ling Culbertson, Juan Delmas-Mata, Frederic de Sauvage, Liangfen Fan, Gretchen Frantz, Leslie Jane Green, Erin Marie Massey, Dina Rebecca McLain, Charles Montgomery, Bobby Joe Payne, Franklin Peale, Heidi Phillips, Michelle Rohrer, Tracy Ellen Willis Sevaux, Zheng-Zheng Shi, Mary Jean Sparks, Joy Anne Stala, Tracy Tzu-Ling Tang, Ching-Yun Wang, Wen Xiong, Peter Vogel
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Publication number: 20120210450Abstract: The present invention relates to transgenic animals, as well as compositions and methods relating to the characterization of gene function. Specifically, the present invention provides transgenic mice comprising disruptions in PRO194, PRO220, PRO241, PRO284, PRO331, PRO354, PRO355, PRO533, PRO541, PRO725, PRO937, PRO1014, PRO1120, PRO1182, PRO1325, PRO1382, PRO1410, PRO1555, PRO1556, PRO1760, PRO1787, PRO1868, PRO4326, PRO4332, PRO4346, PRO4400, PRO6003, PRO6094, PRO6244, PRO9820, PRO9828, PRO10274, PRO16090, PRO19644, PRO21340, PRO92165, PRO85143, PRO1124, PRO1026 or PRO23370 genes.Type: ApplicationFiled: April 8, 2011Publication date: August 16, 2012Inventors: Fred de Sauvage, Dorothy French, Lino Gonzalez, Asja Praetor, Weilan Ye, Katherin E. Combs, Zhiyong Ding, Allison Anne Byers Horner, Erin Marie Massey, Charles Montgomery, Laurie Jeanette Minze, Carolina Rangel, Tracy Ellen Willis Sevaux, Zheng-Zheng Shi, Mary Jean Sparks, Joy Anne Stala, Peter Vogel
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Patent number: 8227661Abstract: The present invention relates to transgenic animals, as well as compositions and methods relating to the characterization of gene function. Specifically, the present invention provides transgenic mice comprising disruptions in PRO227, PRO233, PRO238, PRO1328, PRO4342, PRO7423, PRO10096, PRO21384, PRO353 or PRO1885 genes. Such in vivo studies and characterizations may provide valuable identification and discovery of therapeutics and/or treatments useful in the prevention, amelioration or correction of diseases or dysfunctions associated with gene disruptions such as neurological disorders; cardiovascular, endothelial or angiogenic disorders; eye abnormalities; immunological disorders; oncological disorders; bone metabolic abnormalities or disorders; lipid metabolic disorders; or developmental abnormalities.Type: GrantFiled: October 19, 2010Date of Patent: July 24, 2012Assignee: Lexicon Genetics, Inc.Inventors: Joel A. Edwards, Wenhu Huang, Charles Montgomery, Ni Nancy Qian, Zheng-Zheng Shi, Mary Jean Sparks, Peter Vogel, Mindy Oox
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Publication number: 20120174239Abstract: The present invention relates to transgenic animals, as well as compositions and methods relating to the characterization of gene function. Specifically, the present invention provides transgenic mice comprising disruptions in PRO224, PRO9783, PRO1108, PRO34000, PRO240, PRO943, hu A33, PRO230, PRO178, PRO1199, PRO4333, PRO1336, PRO19598, PRO1083, hu TRPM2 or PRO1801 genes. Such in vivo studies and characterizations may provide valuable identification and discovery of therapeutics and/or treatments useful in the prevention, amelioration or correction of diseases or dysfunctions associated with gene disruptions such as neurological disorders; cardiovascular, endothelial or angiogenic disorders; eye abnormalities; immunological disorders; oncological disorders; bone metabolic abnormalities or disorders; lipid metabolic disorders; or developmental abnormalities.Type: ApplicationFiled: October 27, 2011Publication date: July 5, 2012Inventors: Stephen Jay Anderson, Jane Brennan, Frederic J. de Sauvage, Zhiyong Ding, Joel Edwards, Nelda A. Fikes, Wenhu Huang, Wenjun Ouyang, Carolina Rangel, Mamta Sangha, Zheng-Zheng Shi, Mary Jean Sparks, Joseph Trackey, Melissa Vetter, Ching-Yun Wang, Jessica Woodings
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Publication number: 20120053331Abstract: The present invention relates to a glycol chitosane derivative, a preparation method thereof and a drug delivery system comprising the same. More specifically, the invention relates to a glycol chitosan derivative, which can form nano-sized self-assembled structures and has both temperature sensitivity and biodegradability so as to be suitable for use as a drug delivery system, as well as a preparation method thereof and a drug delivery system comprising the same.Type: ApplicationFiled: December 21, 2010Publication date: March 1, 2012Applicant: Chungnam National University Industry Collaboration FoundationInventors: Kang Moo HUH, Zheng Zheng Li
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Patent number: 8110913Abstract: An integrated circuit package system includes: fabricating a lead frame including: providing inner leads having an inner lead pitch of progressive length, forming a lead shoulder, on the inner leads, having a shoulder height of a progressive height, and forming outer leads coupled to the lead shoulder and the inner leads; mounting an integrated circuit die on the lead frame; and molding a package body on the lead frame and the integrated circuit die.Type: GrantFiled: June 24, 2008Date of Patent: February 7, 2012Assignee: Stats Chippac Ltd.Inventors: Byung Tai Do, Linda Pei Ee Chua, Zheng Zheng, Lee Sun Lim
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Publication number: 20120030776Abstract: The present invention relates to transgenic animals, as well as compositions and methods relating to the characterization of gene function. Specifically, the present invention provides transgenic mice comprising disruptions in PRO69122, PRO204, PRO214, PRO222, PRO234, PRO265, PRO309, PRO332, PRO342, PRO356, PRO540, PRO618, PRO944, PRO994, PRO1079, PRO1110, PRO1122, PRO1138, PRO1190, PRO1272, PRO1286, PRO1295, PRO1309, PRO1316, PRO1383, PRO1384, PRO1431, PRO1434, PRO1475, PRO1481, PRO1568, PRO1573, PRO1599, PRO1604, PRO1605, PRO1693, PRO1753, PRO1755, PRO1777, PRO1788, PRO1864, PRO1925, PRO1926, PRO3566, PRO4330, PRO4423, PRO36935, PRO4977, PRO4979, PRO4980, PRO4981, PRO5801, PRO5995, PRO6001, PRO6095, PRO6182, PRO7170, PRO7171, PRO7436, PRO9912, PRO9917, PRO37337, PRO37496, PRO19646, PRO21718, PRO19820, PRO21201, PRO20026, PRO20110, PRO23203 or PRO35250 genes.Type: ApplicationFiled: October 22, 2010Publication date: February 2, 2012Inventors: Katherin E. Combs, Ling Ling Culbertson, Frederic de Sauvage, Zhiyong Ding, Joel Edwards, Rosemary Girgis, Allison Anne Byers Horner, Harald Junge, Jagath Reddy Junutula, Erin Marie Massey, Dina Rebecca McLain, Charles Montgomery, Bobby Joe Payne, Heidi Phillips, Ni Nancy Qian, Carolina Rangel, Tracy Ellen Willis Sevaux, Zheng-Zheng Shi, Mary Jean Sparks, Joy Anne Stala, Peter Vogel, Weilan Ye
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Publication number: 20120005766Abstract: The present invention relates to transgenic animals, as well as compositions and methods relating to the characterization of gene function. Specifically, the present invention provides transgenic mice comprising disruptions in PRO188, PRO235, PRO266, PRO337, PRO361, PRO539, PRO698, PRO717, PRO846, PRO874, PRO98346, PRO1082, PRO1097, PRO1192, PRO1268, PRO1278, PRO1303, PRO1308, PRO1338, PRO1378, PRO1415, PRO1867, PRO1890, PRO3438, PRO19835, PRO36915, PRO36029, PRO4999, PRO5778, PRO5997, PRO6079, PRO6090, PRO7178, PRO21184, PRO7434, PRO9822, PRO9833, PRO9836, PRO9854, PRO9862, PRO10284, PRO37510, PRO35444, PRO20473, PRO21054 or PRO35246 genes.Type: ApplicationFiled: August 9, 2011Publication date: January 5, 2012Inventors: Kristi Rae Bollinger, Katherin E. Combs, Jaime-Jo Cunningham, Ling Ling Culbertson, Frederic J. de Sauvage, Joel Edwards, Leslie Jane Green, Rosemary Girgis, Allison Anne Byers Horner, Dina Rebecca McLain, Charles Montgomery, Laurie Jeanette Minze, Bobby Joe Payne, Heidi Phillips, Tracy Ellen Willis Sevaux, Zheng-Zheng Shi, Mary Jean Sparks, Joy Anne Stala, Tracy Tzu-Ling Tang, Teresa Gail Townsend, Peter Vogel