The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 01, 2005
Filed:
May. 02, 2002
Michael Joseph Bowe, Preston, GB;
John William Stairmand, Chester, GB;
Linda Jane Mccausland, Abingdon, GB;
Michael Joseph Bowe, Preston, GB;
John William Stairmand, Chester, GB;
Linda Jane McCausland, Abingdon, GB;
Accentus plc, Didcot, GB;
Abstract
Small crystals are made by mixing a solution of a desired substance with an anti-solvent in a fluidic vortex mixer in which the residence time is less than 1 s, for example 10 ms. The liquid within the fluidic vortex mixer () is subjected to high intensity ultrasound from a transducer () in or on the wall of the mixer, or coupled to a pipe supplying liquid to the mixer. The solution very rapidly becomes supersaturated, and the ultrasound can induce a very large number of nuclei for crystal growth. Small crystals, for example less than 5 μm, are formed that may be of a suitable size for use in inhalers.