Patents by Inventor Alan K. Greenwood

Alan K. Greenwood 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).

  • Particle size reduction apparatus, and use thereof
    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
  • Particle-size reduction apparatus, and use thereof
    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
  • Process for the production of tibolone
    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
  • Particle Size Reduction Apparatus, and Use Thereof
    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
  • Particle-size reduction apparatus, and use thereof
    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
  • Particle Size Reduction Apparatus, and Use Thereof
    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
  • PARTICLE-SIZE REDUCTION APPARATUS, AND USE THEREOF
    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
  • Particle-size reduction apparatus, and use thereof
    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
  • Particle-size reduction apparatus and use thereof
    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
  • Production of ? 9 tetrahydrocannabinol
    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
  • Process for the preparation of citalopram
    Patent number: 7002025
    Abstract: Preparation of citalopram comprises the steps of: (a) converting the compound of Formula (I) to a compound of Formula (II), wherein R in Formula (I) represents a C2 to C5 alkylene group which may be substituted or unsubstituted, and R1 in the compounds of Formula (II) represents a carboxylic acid group or a salt or an ester thereof; and (b) converting the compound of Formula (II) to form citalopram or a pharmaceutically acceptable salt thereof, or a direct conversion of the compound of Formula (I) to citalopram
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: February 21, 2006
    Assignee: Resolution Chemicals Limited
    Inventors: Alan K. Greenwood, Derek McHattie, Josef A. Rechka, Paul C. M. Hedger, Mark P. Gamble