Patents by Inventor Derek McHattie

Derek McHattie 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: 9327039
    Abstract: A sterilizable particle-size reduction apparatus, component parts thereof and a method of sterilizing and validating sterility thereof are provided. Also provided is use thereof to prepare sterile suspensions of drugs.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: May 3, 2016
    Assignee: Resolution Chemicals Limited
    Inventors: Alan K. Greenwood, Derek McHattie, Parveen Bhatarah, Gary Hembra
  • Patent number: 8530679
    Abstract: The present invention provides a process for handling ?9-THC, which comprises preparing a solution of ?9-THC in a solvent which exists as a gas at room temperature and atmospheric pressure. The invention also provides solutions of ?9-THC in the solvent and solid preparations of ?9-THC.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: September 10, 2013
    Assignee: Resolution Chemicals Limited
    Inventors: Parveen Bhatarah, Alan Kenneth Greenwood, Derek McHattie, Jerome Thomas Garfield Carr-Brion
  • Patent number: 8052076
    Abstract: A sterilizable particle-size reduction apparatus, component parts thereof and a method of sterilizing and validating sterility thereof are provided. Also provided is use thereof to prepare sterile suspensions of drugs.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: November 8, 2011
    Assignee: Resolution Chemicals Limited
    Inventors: Alan K. Greenwood, Derek McHattie, Parveen Bhatarah, Gary Hembra
  • Publication number: 20110171300
    Abstract: A compound of formula (I) wherein R is selected from (i) a 5 to 7 membered heterocyclic ring containing 1 to 3 heteroatoms independently selected from nitrogen, oxygen and sulfur, which is optionally substituted by one or more groups independently selected from halo, CN, NO2, (C1-C6)alkyl, (C1-C6)alkoxy and phenyl; (ii) (C1-C6)alkyl, which is optionally substituted by one or more substituents each independently selected from halo, oxo, CN, NO2, (C1-C6)alkyl, (C1-C6)alkoxy and phenyl; (iii) (C1-C6)alkyl substituted by (C3-C13)cycloalkyl, which is optionally substituted by one or more substituents each independently selected from halo, oxo, CN, NO2, (C1-C6)alkyl, (C1-C6)alkoxy and phenyl; and (iv) (C3-C13)cycloalkyl, which is optionally substituted by one or more substituents each independently selected from halo, oxo, CN, NO2, (C1-C6)alkyl, (C1-C6)alkoxy and phenyl.
    Type: Application
    Filed: February 14, 2008
    Publication date: July 14, 2011
    Applicant: RESOLUTION CHEMICALS LIMITED
    Inventors: Parveen Bhatarah, Kevin John Batchelor, Derek Mchattie, Alan Kenneth Greenwood
  • Publication number: 20110046213
    Abstract: ?9 THC is obtained by extracting ?9 THC and ?9 THC carboxylic acid from plant material using a non-polar solvent and decarboxylating the ?9 THC acid into ?9 THC in the same solvent, without a solvent swap, in the presence of aqueous base. The ?9 THC is then washed to remove inorganic impurities, still in the same original solvent.
    Type: Application
    Filed: May 1, 2009
    Publication date: February 24, 2011
    Inventors: Parveen Bhatarah, Derek McHattie, Alan Kenneth Greenwood
  • Patent number: 7884222
    Abstract: A process for the syntheses of 17?-hydroxy-7?-methyl-19-nor-17?-pregn-5(10)-ene-20-yne-3-one (tibolone, 11) and intermediates useful for the synthesis thereof.
    Type: Grant
    Filed: March 3, 2004
    Date of Patent: February 8, 2011
    Assignee: Resolution Chemicals Limited
    Inventors: Alan K. Greenwood, Derek McHattie, Parveen Bhatarah
  • Publication number: 20110011959
    Abstract: A sterilisable particle-size reduction apparatus, component parts thereof and a method of sterilising and validating sterility thereof are provided. Also provided is use thereof to prepare sterile suspensions of drugs.
    Type: Application
    Filed: September 23, 2010
    Publication date: January 20, 2011
    Applicant: RESOLUTION CHEMICALS LIMITED
    Inventors: Alan K. Greenwood, Derek McHattie, Parveen Bhatarah, Gary Hembra
  • Patent number: 7861957
    Abstract: A sterilisable particle-size reduction apparatus, component parts thereof and a method of sterilising and validating sterility thereof are provided. Also provided is use thereof to prepare sterile suspensions of drugs.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: January 4, 2011
    Assignee: Resolution Chemicals Limited
    Inventors: Alan K. Greenwood, Parveen Bhatarah, Gary Hembra, Derek McHattie
  • Publication number: 20100099653
    Abstract: A sterilisable particle-size reduction apparatus, component parts thereof and a method of sterilising and validating sterility thereof are provided. Also provided is use thereof to prepare sterile suspensions of drugs.
    Type: Application
    Filed: December 28, 2009
    Publication date: April 22, 2010
    Applicant: Resolution Chemicals Limited
    Inventors: Alan K. GREENWOOD, Derek McHattie, Parveen Bhatarah, Gary Hembra
  • Publication number: 20100087518
    Abstract: The present invention provides a process for handling ?9-THC, which comprises preparing a solution of ?9-THC in a solvent which exists as a gas at room temperature and atmospheric pressure. The invention also provides solutions of ?9-THC in the solvent and solid preparations of ?9-THC.
    Type: Application
    Filed: February 19, 2008
    Publication date: April 8, 2010
    Applicant: RESOLUTION CHEMICALS LIMITED
    Inventors: Parveen Bhatarah, Alan Kenneth Greenwood, Derek Mchattie, Jerome Thomas Garfield Carr-Brion
  • Publication number: 20100012114
    Abstract: A sterilisable particle-size reduction apparatus, component parts thereof and a method of sterilising and validating sterility thereof are provided. Also provided is use thereof to prepare sterile suspensions of drugs.
    Type: Application
    Filed: September 2, 2009
    Publication date: January 21, 2010
    Applicant: RESOLUTION CHEMICALS LIMITED
    Inventors: ALAN K. GREENWOOD, PARVEEN BHATARAH, GARY HEMBRA, DEREK MCHATTIE
  • Patent number: 7644880
    Abstract: A sterilisable particle-size reduction apparatus, component parts thereof and a method of sterilising and validating sterility thereof are provided. Also provided is use thereof to prepare sterile suspensions of drugs.
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: January 12, 2010
    Assignee: Resolution Chemicals Limited
    Inventors: Alan K. Greenwood, Derek McHattie, Parveen Bhatarah, Gary Hembra
  • Patent number: 7600703
    Abstract: A sterilisable particle-size reduction apparatus, component parts thereof and a method of sterilizing and validating sterility thereof are provided. Also provided is use thereof to prepare sterile suspensions of drugs.
    Type: Grant
    Filed: August 19, 2004
    Date of Patent: October 13, 2009
    Assignee: Resolution Chemicals Limited
    Inventors: Alan K. Greenwood, Parveen Bhatarah, Gary Hembra, Derek McHattie
  • Publication number: 20090253783
    Abstract: The present invention provides isolated, purified ?9 THC. In another embodiment, the invention provides pharmaceutical compositions comprising isolated, purified ?9 THC and a pharmaceutically acceptable carrier. In another embodiment, the invention provides methods of preparing pharmaceutical compositions comprising isolated, purified ?9 THC and a pharmaceutically acceptable carrier.
    Type: Application
    Filed: June 18, 2009
    Publication date: October 8, 2009
    Applicant: Resolution Chemicals Limited
    Inventors: Neil John Goodwin, Nicolas James Archer, Christopher Murray, Alan Kenneth Greenwood, Derek Mchattie
  • Patent number: 7592468
    Abstract: ?9 THC acid is obtained from plant material and extracted into an aqueous solvent under conditions of pH control. The acid is converted to a salt and the salt extracted into a polar solvent, yielding acid of high purity. The ?9 THC acid is then converted to ?9 THC which is further purified and combined with a carrier for pharmaceutical use.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: September 22, 2009
    Assignee: Resolution Chemicals Limited
    Inventors: Neil J Goodwin, Nicolas J. Archer, Christopher Murray, Alan K. Greenwood, Derek Mchattie
  • Patent number: 7524881
    Abstract: ?9 THC acid is obtained from plant material and extracted into an aqueous solvent under conditions of pH control. The acid is converted to a salt and the salt extracted into a polar solvent, yielding acid of high purity. The ?9 THC acid is then converted to ?9 THC which is further purified and combined with a carrier for pharmaceutical use.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: April 28, 2009
    Assignee: Resolution Chemicals Limited
    Inventors: Neil John Goodwin, Nicolas James Archer, Christopher Murray, Alan Kenneth Greenwood, Derek Mchattie
  • Patent number: 7498458
    Abstract: Disclosed are processes for the synthesis and purification of prostaglandins and analogues thereof, especially analogues of PGF2?.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: March 3, 2009
    Assignee: Resolution Chemicals Limited
    Inventors: Alan Kenneth Greenwood, Derek McHattie, David George Thompson, Derek Clissold
  • Patent number: 7339060
    Abstract: A method of preparing cabergoline Form I, comprising forming a solvate including cabergoline and a p-disubstituted benzene of formula (A) or 1,3,5-trimethylbenzene and obtaining cabergoline Form I from the solvate. Another aspect of the present invention provides a method for preparing cabergoline Form I comprising dissolving cabergoline in p-disubstituted benzene or 1,3,5-trimethylbenzene and recovering the cabergoline Form I polymorph, suitably by direct crystallization of Form I or by recovery of a solvate which can be converted to Form I. Another aspect of the present invention provides a novel cabergoline polymorph designated cabergoline Form FB and a method of preparing said polymorph by dissolving or forming a solvate of cabergoline in fluorobenzene and recovering cabergoline Form FB.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: March 4, 2008
    Assignee: Resolution Chemicals, Ltd.
    Inventors: Alan Kenneth Greenwood, Derek McHattie, Parveen Bhatarah, Mahmoud Aloui
  • Patent number: 7268239
    Abstract: Disclosed are processes for the synthesis and purification of prostaglandins and analogues thereof, especially analogues of PGF2?.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: September 11, 2007
    Assignee: Resolution Chemicals Limited
    Inventors: Alan Kenneth Greenwood, Derek McHattie, David George Thompson, Derek Clissold
  • Publication number: 20070197576
    Abstract: The present application relates to a novel polymorphic form of cabergoline comprising cabergoline and t-amyl methyl ether, designated Form TAME cabergoline, together with a novel method of producing cabergoline.
    Type: Application
    Filed: February 7, 2007
    Publication date: August 23, 2007
    Applicant: Resolution Chemicals Limited
    Inventors: Alan Greenwood, Parveen Bhatarah, Raza Mahmood, Derek McHattie