Patents by Inventor Su Seong Lee
Su Seong Lee 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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Patent number: 11943490Abstract: The method comprises registering at least one of an internet protocol (IP) address and a media access control (MAC) address of the security devices, generating a plurality of public key and private key pairs, encrypting and storing private keys comprised in the plurality of public key and private key pairs using a master key provided from a master key management unit, selecting any one of a plurality of public key and private key pairs when the access of the security device is approved and providing a certificate comprising the selected public key to the security device, receiving a symmetric key encrypted with the public key of the certificate from the security device, and decrypting the private key using the master key provided from the master key management unit.Type: GrantFiled: January 11, 2022Date of Patent: March 26, 2024Assignee: DUDU Information Technologies, Inc.Inventors: Young Sun Park, Su Man Nam, Jin Woo Lee, Jun Geol Kim, Yun Seong Kim, Yoon Jeong Kim
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Publication number: 20200291079Abstract: A non-saccharide glycosaminoglycan mimetic molecule comprising a polyproline backbone and one or more non-saccharide molecules, wherein the non-saccharide molecules are bound to one or more prolines and/or proline derivatives on the polyproline backbone, is disclosed herein. In a preferred embodiment the non-saccharide molecule is a negatively charged sulfate. The invention also relates to methods of synthesizing said non-saccharide glycosaminoglycan mimetic molecule and the use of the molecules thereof in targeting cell adhesion molecules such as selectin.Type: ApplicationFiled: November 11, 2016Publication date: September 17, 2020Inventors: Song-Gil LEE, Teck Chuan LIM, Shuting CAI, Su Seong LEE, Siv Ly KHOU, Kah Chin Jerry TOH, Joo-Eun JEE
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Patent number: 9879059Abstract: A glycopeptide, comprising a polyproline backbone and one or more carbohydrate molecules.Type: GrantFiled: April 28, 2014Date of Patent: January 30, 2018Assignee: Agency for Science, Technology and ResearchInventors: Song-Gil Lee, Su Seong Lee, Jaehong Lim, Jian Liang Cheong, Teck Chuan Lim, Shuting Cai
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Patent number: 9863956Abstract: Techniques for differentiating isobaric species are described. An isobaric species may be substituted with a tagging species identified using mass spectrometry. The isobaric species may be a subunit of a first polymer having a defined sequence, e.g., the isobaric species may be an amino acid in a protein or a peptide sequence. A tagging species may be substituted for the isobaric species in a second polymer having an otherwise identical sequence as the first polymer. The second polymer may have the same number of sequences as the first polymer, and substantially the same sequence of subunits, with a few exceptions such as the tagging species for the isobaric species. The first polymer and the second polymer may be prepared in the same reaction vessel. A polymer/protein of defined subunit sequence containing an isobaric species or a tagging species may be analyzed by mass spectrometry to determine the sequence.Type: GrantFiled: July 22, 2009Date of Patent: January 9, 2018Assignee: Agency for Science, Technology and ResearchInventors: James R. Heath, Su Seong Lee, Jaehong Lim, Junhoe Cha, Sylvia Tan, Shi Yun Yeo
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Publication number: 20170217853Abstract: There is provided a method for producing an optionally substituted olefin, comprising the steps of: dehydrogenating an optionally substituted alcohol in a first reaction zone comprising a first catalyst supported on a porous silica-based particle to form an optionally substituted carbonyl at a first set of reaction conditions; converting the optionally substituted alcohol and the optionally substituted carbonyl from the first reaction zone in a second reaction zone at a second set of reaction conditions that is different to the first set of reaction conditions and is selected to form the optionally substituted olefin, wherein the second reaction zone comprises a second catalyst supported on a porous silica-based particle. There is also provided a system for producing the optionally substituted olefin.Type: ApplicationFiled: October 5, 2015Publication date: August 3, 2017Inventors: Su Seong LEE, Jian Liang CHEONG
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Publication number: 20160075746Abstract: A glycopeptide, comprising a polyproline backbone and one or more carbohydrate molecules.Type: ApplicationFiled: April 28, 2014Publication date: March 17, 2016Inventors: Song-Gil Lee, Su Seong Lee, Jaehong Lim, Jian Liang Cheong
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Publication number: 20160075765Abstract: This invention relates to modified collagen molecules, in particular, modified collagen-glycosaminoglycan composites. This invention also provides methods for stabilizing collagen molecules and uses of these collagen molecules.Type: ApplicationFiled: May 9, 2014Publication date: March 17, 2016Inventors: Song-Gil Lee, Su Seong Lee, Jaehong Lim
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Patent number: 8933276Abstract: The invention provides a heterogeneous catalyst comprising a catalytic group coupled to a mesocellular siliceous foam support. The catalytic group is capable of catalysing a reaction selected from the group consisting of a Friedel-Craft reaction and a Diels-Alder reaction.Type: GrantFiled: January 19, 2006Date of Patent: January 13, 2015Assignee: Agency for Science, Technology and ResearchInventors: Jackie Y. Ying, Yugen Zhang, Su Seong Lee
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Patent number: 8715982Abstract: The present invention relates to a method for immobilizing enzymes in a solid porous support, and to enzymes immobilized in solid porous supports. Specifically, the present invention uses a fluid containing the enzyme under high pressure (such as 25 to 50 Mpa) to immobilize the enzyme (such as CALB) on the porous support (such as silica). The resulting porous support contain more immobilized enzyme than would otherwise have been obtained by a process carried out at atmospheric pressures.Type: GrantFiled: March 8, 2005Date of Patent: May 6, 2014Assignee: Agency for Science, Technology and ResearchInventors: Jackie Y. Ying, Su Seong Lee, Yu Han
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Patent number: 8648003Abstract: A catalyst composition is provided, which may be used for ring closing metathesis. In the composition, a catalyst is immobilized on a siliceous mesocellular foam support. A suitable catalyst for use in the composition is a Grubbs-type catalyst or a Hoveyda-Grubbs-type catalyst.Type: GrantFiled: April 11, 2007Date of Patent: February 11, 2014Assignee: Agency for Science, Technology and ResearchInventors: Jackie Y. Ying, Jaehong Lim, Su Seong Lee, Siti Nurhanna Binte Riduan
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Patent number: 8642006Abstract: The present invention provides a process for making regular shaped particles of solid foam. A first mixture, comprising water, an acid, a surfactant and a hydrophobic material, is combined with a hydrolysable silicon species to form a second mixture. The second mixture is maintained under conditions and for a sufficient time to form regular shaped precursor particles. The second mixture is then aged at a temperature and for a time effective to produce the regular shaped particles of solid foam.Type: GrantFiled: June 16, 2005Date of Patent: February 4, 2014Assignee: Agency for Science, Technology and ResearchInventors: Jackie Y. Ying, Su Seong Lee, Yu Han, Sukandar Hidinoto
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Patent number: 8592336Abstract: A catalyst composition is provided, which may be used for ring closing metathesis. In the composition, a catalyst is immobilized on a siliceous mesocellular foam support. A suitable catalyst for use in the composition is a Grubbs-type catalyst or a Hoveyda-Grubbs-type catalyst.Type: GrantFiled: January 23, 2013Date of Patent: November 26, 2013Assignee: Agency for Science, Technology and ResearchInventors: Su Seong Lee, Jaehong Lim, Siti Nurhanna Binte Riduan, Jackie Y. Ying
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Publication number: 20130267423Abstract: The present invention generally relates to various peptides and particles, for example, for use in screening of particle- or bead-based peptide libraries. In one aspect, the present invention is generally directed to articles including peptides attached to one or more particles, which may have structures such as (particle)-M-Q-Zn-X-J, (particle)-M-Q-Zn—X1—X2—X3—X4—X5-J, (particle)-M-R—Zn—X1—X2—X3—X4—X5-J, (particle)-M-R—X1—X2—X3—X4—X5Zn-Q-J, (particle)-M-X1—X2—X—3X4—X5—Zn—R-J, etc., where M is a methionine residue, M1 is a cleavable linker residue, Q is a group able to enhance intensity and/or sensitivity of mass spectrometry, X comprises one or more amino acid residues, n is a positive integer, Z is a covalent bond or a spacer, and J is an end-group. In some embodiments, the spacer may comprise a structure such as:(I). Other aspects of the present invention generally relate to methods of using such articles, e.g.Type: ApplicationFiled: August 29, 2011Publication date: October 10, 2013Inventors: Su Seong Lee, Jaehong Lim, Junhoe Cha, Yi Li Ang, Yiran Zheng, Sylvia Tan
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Patent number: 8501656Abstract: A catalyst composition is provided, which may be used for ring closing metathesis. In the composition, a catalyst is immobilized on a siliceous mesocellular foam support. A suitable catalyst for use in the composition is a Grubbs-type catalyst or a Hoveyda-Grubbs-type catalyst.Type: GrantFiled: April 11, 2007Date of Patent: August 6, 2013Assignee: Agency for Science, Technology and ResearchInventors: Jackie Y. Ying, Jaehong Lim, Su Seong Lee, Siti Nurhanna Binte Riduan
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Publication number: 20130109578Abstract: Techniques for differentiating isobaric species are described. An isobaric species may be substituted with a tagging species identified using mass spectrometry. The isobaric species may be a subunit of a first polymer having a defined sequence, e.g., the isobaric species may be an amino acid in a protein or a peptide sequence. A tagging species may be substituted for the isobaric species in a second polymer having an otherwise identical sequence as the first polymer. The second polymer may have the same number of sequences as the first polymer, and substantially the same sequence of subunits, with a few exceptions such as the tagging species for the isobaric species. The first polymer and the second polymer may be prepared in the same reaction vessel. A polymer/protein of defined subunit sequence containing an isobaric species or a tagging species may be analyzed by mass spectrometry to determine the sequence.Type: ApplicationFiled: July 22, 2009Publication date: May 2, 2013Applicant: Agency for Science, technology and ResearchInventors: James R. Heath, Su Seong Lee, Jaehong Lim, Junhoe Cha, Sylvia Tan, Shi Yun Yeo
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Patent number: 8398931Abstract: The invention provides a recirculating reactor for converting a substrate to a product. The reactor comprises a reaction chamber and a recirculation system, said recirculation system comprising a separator. The reaction chamber contains a catalyst, and comprises a chamber body, a chamber inlet and a chamber outlet. The recirculation system is adapted for recirculating liquid from the chamber outlet to the chamber inlet, and the separator is used for separating a by-product from the liquid.Type: GrantFiled: September 3, 2010Date of Patent: March 19, 2013Assignee: Agency for Science, Technology and ResearchInventors: Jackie Y. Ying, Su Seong Lee, Jaehong Lim, Siti Nurhanna binte Riduan
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Publication number: 20120122711Abstract: Described herein are inventive compositions and methods relating to sampling of biopolymers and, in particular, to fractional sampling of biopolymers. In one aspect, embodiments are generally related to unique biopolymer species where a fraction of each biopolymer species contains a cleavable linker. The biopolymer species may, in some embodiments, be attached to a surface. For example, the biopolymer species may be attached to beads. In some embodiments, a portion of a unique biopolymer species may be sampled by cleaving the cleavable linker. In some cases, the sample may be analyzed to determine the sequence of the biopolymer.Type: ApplicationFiled: July 15, 2010Publication date: May 17, 2012Inventors: James R. Heath, Su Seong Lee, Jaehong Lim, Junhoe Cha, Sylvia Tan, Shi Yun Yeo, Yi Li Ang, Yiran Zhang
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Patent number: 8148287Abstract: The present invention relates to a method for preparing a heterogenised catalyst, comprising grafting a catalyst or catalyst precursor, via click chemistry, to a siliceous mesocellular foam (MCF). The invention also relates to a heterogenised catalyst comprising a catalyst species grafted onto a siliceous mesocellular foam (MCF) via a 1,2,3-triazole.Type: GrantFiled: March 20, 2008Date of Patent: April 3, 2012Assignee: Agency for Science, Technology and ResearchInventors: Jackie Y. Ying, Jaehong Lim, Su Seong Lee, Siti Nurhanna binte Riduan
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Publication number: 20120003689Abstract: A process for making a particulate material comprising mesoporous particles having granules of a metal containing species in at least some of the pores thereof, said process comprising: allowing a compound of the metal to enter pores of hydrophobic mesoporous particles, said compound being thermally decomposable at a decomposition temperature to form a metal containing species and said particles being substantially thermally stable at said decomposition temperature; and heating the hydrophobic mesoporous particles having the compound in the pores thereof to the decomposition temperature so as to decompose the compound and to form the mesoporous particles having granules of the metal containing species in at least some of the pores thereof.Type: ApplicationFiled: November 17, 2008Publication date: January 5, 2012Applicant: Agency for Science, Technology and ResearchInventors: Jackie Y. Ying, Su Seong Lee, Siti Nurhanna Binte Riduan, yu Han
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Patent number: 7919422Abstract: The present invention describes a heterogeneous chiral catalyst comprising a heterogeneous chiral catalyst precursor complexed with a metal species. The precursor comprises a chiral bisoxazoline group coupled to an inorganic substrate. The heterogeneous chiral catalyst may be capable of catalysing a chemical reaction, for example cyclopropanation, and the chemical reaction may be capable of generating a chiral product.Type: GrantFiled: March 8, 2005Date of Patent: April 5, 2011Assignee: Agency for Science, Technology and ResearchInventors: Jackie Y Ying, Su Seong Lee, Sukandar Hadinoto