Patents by Inventor Donald Tan

Donald Tan 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: 11642350
    Abstract: The present invention relates to an agent for preventing myopia, treating myopia, and/or preventing myopia progression, comprising tiotropium as an active ingredient.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: May 9, 2023
    Assignees: Singapore Health Services PTE LTD, Santen Pharmaceutical Co., Ltd.
    Inventors: Tiang Hwee Donald Tan, Roger Wilmer Beuerman, Seang-Mei Saw, Aradhana Upadhyay, Masatomo Kato, Takaaki Inaba
  • Publication number: 20220281803
    Abstract: The present invention relates to a compound comprising a hydrophobic moiety, a linker and N-containing moiety. The present invention also relates to the method of synthesizing the compound and the use of the compound as an antibiotic or an adjuvant for an antibiotic.
    Type: Application
    Filed: May 18, 2020
    Publication date: September 8, 2022
    Inventors: Thet Tun AUNG, Jianguo LI, Jun Jie KOH, Lakshminarayanan RAJAMANI, Roger BEUERMAN, Tiang Hwee Donald TAN, Mercy Halleluyah PERIAYAH, Chandra Shekhar VERMA, Swaine CHEN, Timothy BARKHAM
  • Publication number: 20210267885
    Abstract: Disclosed herein is an aqueous composition comprising 0.001-0.1% (w/v) atropine or a salt thereof, a water-soluble polymer, and buffer (I), which is at a pH range of 6 or lower, wherein the buffer (I) is at least one selected from the group consisting of a phosphate buffer, an aminocarboxylate buffer, a carbonate buffer, an acetate buffer, a tartrate buffer, a borate buffer, and trometamol.
    Type: Application
    Filed: May 24, 2017
    Publication date: September 2, 2021
    Inventors: Donald TAN, Roger BEUERMAN, Hiroyuki ASADA, Kyohei TAKAHASHI, Koji SAKANAKA, Takashi MORIMOTO, Toyomi FUJISAWA
  • Publication number: 20200147098
    Abstract: The present invention relates to an agent for preventing myopia, treating myopia, and/or preventing myopia progression, comprising tiotropium as an active ingredient.
    Type: Application
    Filed: March 22, 2018
    Publication date: May 14, 2020
    Inventors: Tiang Hwee Donald TAN, Roger Wilmer BEUERMAN, Seang-Mei SAW, Aradhana UPADHYAY, Masatomo KATO, Takaaki INABA
  • Publication number: 20190002429
    Abstract: The present invention relates to xanthone analogs. Such compounds may be used in the treatment of bacterial infections.
    Type: Application
    Filed: March 23, 2018
    Publication date: January 3, 2019
    Inventors: Hanxun Zou, Lakshminarayanan Rajamani, Lei Zhou, Chang Chui Charles Tang, Jun Jie Koh, Tiang Hwee Donald Tan, Chandra Verma, Roger W. Beuerman, Shouping Liu, Saraswathi Padmanabhan
  • Patent number: 10017735
    Abstract: The invention relates to a dual-media approach for culturing isolated corneal endothelial cells. Isolated corneal endothelial cells are first contacted with a proliferative medium to propagate and/or expand the endothelial cells followed by a maintenance medium to preserve the morphology and/or characteristics of the corneal endothelial cells. The invention includes the proliferative medium and the maintenance medium and also a combination of the two medium.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: July 10, 2018
    Assignee: SINGAPORE HEALTH SERVICES PTE LTD
    Inventors: Donald Tan, Jodhbir Mehta, Swee Lim Gary Peh
  • Patent number: 9220264
    Abstract: The invention relates to multimeric forms of antimicrobial peptides, for example, defensin peptides. The multimeric forms of defensin peptides possesses antimicrobial activity and may be formulated into antimicrobial compositions, pharmaceutical compositions, eyedrop composition, contact lens solution compositions for coating medical devices and the like. The invention also relates to the use of these multimeric forms of peptides, e.g. multimeric forms of defensin peptides for inhibiting and/or reducing the growth of microorganisms in general, including in a host. The invention further relates to a method of preparing multimers of peptides derived from defensins, for example hBD3. The method includes a composition or combination comprising the multimeric antimicrobial peptides and at least one active pharmaceutical ingredient.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: December 29, 2015
    Assignees: Singapore Health Services Pte Ltd., Agency for Science, Technology and Research
    Inventors: Roger W. Beuerman, Shouping Liu, Jing Li, Lei Zhou, Chandra Shekhar Verma, Donald Tan
  • Publication number: 20150203815
    Abstract: The invention relates to a dual-media approach for culturing isolated corneal endothelial cells. Isolated corneal endothelial cells are first contacted with a proliferative medium to propagate and/or expand the endothelial cells followed by a maintenance medium to preserve the morphology and/or characteristics of the corneal endothelial cells. The invention includes the proliferative medium and the maintenance medium and also a combination of the two medium.
    Type: Application
    Filed: July 18, 2013
    Publication date: July 23, 2015
    Applicant: SINGAPORE HEALTH SERVICES PTE LTD
    Inventors: Donald Tan, Jodhbir Mehta, Swee Lim Gary Peh
  • Patent number: 8958621
    Abstract: An OCT image of an eye which has been subject to a DSAEK corneal transplant, in which a Descement's membrane in the cornea has been replaced by a graft, is processed to identify the outline of the graft. The process includes the steps of: computationally extracting the boundary of the cornea including the graft; computationally detecting the corners of the graft; computationally extracting points on the boundary between the graft and the original cornea; and computationally fitting the points on the boundary between the graft and the original cornea smoothly into a curve. The outline of the graft is then displayed. A graft profile may be generated, indicating the thickness of the graft at each point along its length.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: February 17, 2015
    Assignees: Agency for Science, Technology and Research, Singapore Health Services Pte Ltd.
    Inventors: Beng Hai Lee, Jun Cheng, Jiang Liu, Wing Kee Damon Wong, Ngan Meng Tan, Jodhbir Singh Mehta, Tiang Hwee Donald Tan, Tien Yin Wong
  • Publication number: 20140349918
    Abstract: The present invention relates to xanthone analogs. Such compounds may be used in the treatment of bacterial infections.
    Type: Application
    Filed: September 10, 2012
    Publication date: November 27, 2014
    Applicants: Singapore Health Services Pte Ltd., Agency for Science, Technology and Research
    Inventors: Hanxun Zou, Lakshminiarayan Rajanmani, Lei Zhou, Chang Chui Charles Tang, Jun Jie Koh, Tiang Hwee Donald Tan, Chandra Verma, Roger W. Beuerman, Shouping Liu, Saraswathi Padmanabhan
  • Patent number: 8809262
    Abstract: The invention relates to multimeric forms of antimicrobial peptides, for example, defensin peptides. The multimeric forms of defensin peptides possesses antimicrobial activity and may be formulated into antimicrobial compositions, pharmaceutical compositions, eyedrop composition, contact lens solution compositions for coating medical devices and the like. The invention also relates to the use of these multimeric forms of peptides, e.g. multimeric forms of defensin peptides for inhibiting and/or reducing the growth of microorganisms in general, including in a host. The invention further relates to a method of preparing multimers of peptides derived from defensins, for example hBD3.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: August 19, 2014
    Assignees: Singapore Health Service Pte Ltd., Agency for Science, Technology and Research
    Inventors: Roger W. Beuerman, Shouping Liu, Jing Li, Lei Zhou, Chandra Shekhar Verma, Donald Tan
  • Publication number: 20140142027
    Abstract: The invention relates to multimeric forms of antimicrobial peptides, for example, defensin peptides. The multimeric forms of defensin peptides possesses antimicrobial activity and may be formulated into antimicrobial compositions, pharmaceutical compositions, eyedrop composition, contact lens solution compositions for coating medical devices and the like. The invention also relates to the use of these multimeric forms of peptides, e.g. multimeric forms of defensin peptides for inhibiting and/or reducing the growth of microorganisms in general, including in a host. The invention further relates to a method of preparing multimers of peptides derived from defensins, for example hBD3. The method includes a composition or combination comprising the multimeric antimicrobial peptides and at least one active pharmaceutical ingredient.
    Type: Application
    Filed: November 26, 2013
    Publication date: May 22, 2014
    Applicants: Agency for Science, Technology and Research, Singapore Health Services Pte Ltd.
    Inventors: Roger W. BEUERMAN, Shouping Liu, Jing Li, Lei Zhou, Chandra Shekhar Verma, Donald Tan
  • Patent number: 8691945
    Abstract: There is provided at least one isolated antimicrobial peptide, wherein the peptide is a linear analog of hBD3 or a fragment thereof. In particular, there is provided a linear analog of hBD3 wherein the peptide has a reduced cytotoxicity to at least one cell compared to the wild type hBD3.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: April 8, 2014
    Assignees: Singapore Health Services Pte Ltd., Agency for Science, Technology and Research
    Inventors: Roger Beuerman, Lei Zhou, Shouping Liu, Jing Li, Anita Suresh, Chandra Shekhar Verma, Donald Tan
  • Publication number: 20130251230
    Abstract: An OCT image of an eye which has been subject to a DSAEK corneal transplant, in which a Descement's membrane in the cornea has been replaced by a graft, is processed to identify the outline of the graft. The process includes the steps of: computationally extracting the boundary of the cornea including the graft; computationally detecting the corners of the graft; computationally extracting points on the boundary between the graft and the original cornea; and computationally fitting the points on the boundary between the graft and the original cornea smoothly into a curve. The outline of the graft is then displayed. A graft profile may be generated, indicating the thickness of the graft at each point along its length.
    Type: Application
    Filed: August 3, 2011
    Publication date: September 26, 2013
    Inventors: Beng Hai Lee, Jun Cheng, Jiang Liu, Wing Kee Damon Wong, Ngan Meng Tan, Jodhbir Singh Mehta, Tiang Hwee Donald Tan, Tien Yin Wong
  • Publication number: 20130085567
    Abstract: DMEK surgery is performed using a carrier mat made of a polymeric material having elastic memory and a hydrophilic surface, for supporting the descemet's membrane and transporting it to an insertion capsule.
    Type: Application
    Filed: October 1, 2012
    Publication date: April 4, 2013
    Inventors: Donald Tan, Jodhbir Mehta
  • Publication number: 20120226286
    Abstract: A system for use in preparing a lenticular or corneal implant includes a cartridge having a generally tubular portion, comprised of a sidewall defining a longitudinal bore of curvilinear cross section and having open forward and rearward ends. The system also includes a preparation base with an upper portion having a recess and cartridge-receiving structure for removably engaging the cartridge in position with the open, rearward end of the longitudinal bore thereof proximate one side of the recess, allowing for facile removal of the cartridge from the base. An insert member has structure for removably engaging it in the recess, and has one portion defining a platform for receiving the implant and another, adjacent portion defining funnel structure having a wider end facing the platform and a narrower end facing the open rearward end of the cartridge.
    Type: Application
    Filed: December 20, 2011
    Publication date: September 6, 2012
    Inventors: Philip Douglas Weston, Donald Tan, Jod Mehta
  • Patent number: 8080428
    Abstract: The present invention relates to diagnosis and/or treatment of medical conditions. The present invention relates to new method of diagnosing dry mucosa condition in a subject. The condition may be dry eye. The present invention also provides a method to monitor the efficacy of a treatment of a dry mucosa condition, a method of treating a dry mucosa condition and/or a diagnostic kit for a dry mucosa condition.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: December 20, 2011
    Assignees: Singapore Health Services Pte Ltd., Agency for Science, Technology and Research
    Inventors: Roger Beuerman, Lei Zhou, Shouping Liu, He Yang, Donald Tan
  • Publication number: 20110039760
    Abstract: The invention relates to multimeric forms of antimicrobial peptides, for example, defensin peptides. The multimeric forms of defensin peptides possesses antimicrobial activity and may be formulated into antimicrobial compositions, pharmaceutical compositions, eyedrop composition, contact lens solution compositions for coating medical devices and the like. The invention also relates to the use of these multimeric forms of peptides, e.g. multimeric forms of defensin peptides for inhibiting and/or reducing the growth of microorganisms in general, including in a host. The invention further relates to a method of preparing multimers of peptides derived from defensins, for example hBD3.
    Type: Application
    Filed: April 21, 2009
    Publication date: February 17, 2011
    Applicant: SINGAPORE HEALTH SERVICES PTE LTD
    Inventors: Roger W. Beuerman, Shouping Liu, Jing Li, Lei Zhou, Chandra Shekhar Verma, Donald Tan
  • Patent number: D633203
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: February 22, 2011
    Inventors: Philip Douglas Weston, Donald Tan, Jod Mehta
  • Patent number: D669582
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: October 23, 2012
    Inventors: Philip Douglas Weston, Donald Tan, Jod Mehta