Patents by Inventor Andrew Chaplin

Andrew Chaplin 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).

  • Publication number: 20210340156
    Abstract: The present application relate to crystalline azide compound of formula (II) which is used as an intermediate for the preparation of halichondrin B analogues such as eribulin or pharmaceutically acceptable salts thereof. The present application also covers purification process of azide compound of formula (II) and its further conversion to eribulin or a pharmaceutically acceptable salts thereof.
    Type: Application
    Filed: October 4, 2019
    Publication date: November 4, 2021
    Inventors: Graham Andrew MEEK, Philip Mark JACKSON, Thomas MAHONEY, Pieter David DE KONING, Robert Wen Ming DAVIDSON, Christopher James COBLEY, David Andrew CHAPLIN, Helen SAMUEL, Achanta SRINIVAS, Kurella SRINIVAS, Madaraboina MAHENDER
  • Patent number: 9135257
    Abstract: A system and method for creating shortcuts within a database for archived items. A client computer sends a retrieval request for a given item to a web server. The given item may be an electronic document. A custom HTTPModule within the web server intercepts the request. The HTTPModule uses a uniform resource locator (URL) provided in the request to locate a record associated with the given item. If a given fixed string value is read from the record in place of the original content data, then the web server requests original content data for the given item from an archive store. The record still maintains identification information, such as a document identifier and the URL in order to maintain links and workflows. The retrieval request is not rerouted to an alternate path, and the client computer receives the original content data, rather than an indication of a shortcut.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: September 15, 2015
    Assignee: Symantec Corporation
    Inventors: Andrew Chaplin, Andrew Gilbert
  • Publication number: 20140012896
    Abstract: A system and method for creating shortcuts within a database for archived items. A client computer sends a retrieval request for a given item to a web server. The given item may be an electronic document. A custom HTTPModule within the web server intercepts the request. The HTTPModule uses a uniform resource locator (URL) provided in the request to locate a record associated with the given item. If a given fixed string value is read from the record in place of the original content data, then the web server requests original content data for the given item from an archive store. The record still maintains identification information, such as a document identifier and the URL in order to maintain links and workflows. The retrieval request is not rerouted to an alternate path, and the client computer receives the original content data, rather than an indication of a shortcut.
    Type: Application
    Filed: July 15, 2013
    Publication date: January 9, 2014
    Inventors: Andrew Chaplin, Andrew Gilbert
  • Patent number: 8489676
    Abstract: A system and method for creating shortcuts within a database for archived items. A client computer sends a retrieval request for a given item to a web server. The given item may be an electronic document. A custom HTTPModule within the web server intercepts the request. The HTTPModule uses a uniform resource locator (URL) provided in the request to locate a record associated with the given item. If a given fixed string value is read from the record in place of the original content data, then the web server requests original content data for the given item from an archive store. The record still maintains identification information, such as a document identifier and the URL in order to maintain links and workflows. The retrieval request is not rerouted to an alternate path, and the client computer receives the original content data, rather than an indication of a shortcut.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: July 16, 2013
    Assignee: Symantec Corporation
    Inventors: Andrew Chaplin, Andrew Gilbert
  • Patent number: 6346618
    Abstract: A process for the asymmetric transformation of a racemic compound of formula (I) wherein R1 is H or a alkyl group having up to 20 carbon atoms, R2 is H, or an alkyl, aryl, alkaryl or aralkyl group having up to 20 carbon atoms, and X is H, a halogen atom, tert-butyl, or any other removable substituent, comprises reaction of racemic compound (I) with an enantiomerically-enriched acid HY*, wherein Y* is a chiral group, to form a diastereomeric salt of compound (I) having Y* as a counterion. The salt obtained can then be reduced to give enantiomerically-enriched galanthamine, or a derivative thereof.
    Type: Grant
    Filed: June 28, 1999
    Date of Patent: February 12, 2002
    Assignee: Janssen Pharmaceutica N.V.
    Inventors: David Andrew Chaplin, Nicholas Bernard Johnson, Gerard Andrew Potter, Jane Marie Paul
  • Patent number: 6093815
    Abstract: A process for preparing a compound having formula (11), comprises oxidative cyclization of a tertiary amine having formula (12), wherein X.sup.1 is a removable functionality, X.sup.2 is hydrogen or a group as defined above for X.sup.1, and R.sup.1 is selected from hydrogen and alkyl, aryl, alkaryl and aralkyl groups having up to 20 carbon atoms, and R.sup.2 and R.sup.3 are independently selected from hydrogen and alkyl, aryl, alkaryl, aralkyl and acyl groups having up to 20 carbon atoms. Novel compounds are both used and produced by that process.
    Type: Grant
    Filed: August 20, 1998
    Date of Patent: July 25, 2000
    Assignee: Janssen Pharmaceutica N.V.
    Inventors: David Andrew Chaplin, Neil Fraser, Peter David Tiffin