Patents by Inventor Fenhui NIU

Fenhui NIU 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).

  • Equipment assembly for and method of processing particles
    Patent number: 9233348
    Abstract: An equipment assembly for preparing, harvesting and collecting particles is disclosed. The assembly comprises a tandem filter system with one or more high pressure filters, one or more low pressure filters and one or more collection vessel. Particles can be prepared, harvested and collected continuously, semi-continuously or in a batch-type operation. A tandem filter system and its method of use are also disclosed. Particles made with the assembly and according the instant methods are also disclosed. The assembly provides improved particle harvesting and collection over other systems and permits continuous particle formation, in particular by dispersion of a solute-containing process fluid within a supercritical anti-solvent.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: January 12, 2016
    Assignee: Crititech, Inc.
    Inventors: Greg S Johnson, Bala Subramaniam, Fenhui Niu
  • Equipment Assembly for and Method of Processing Particles
    Publication number: 20150375153
    Abstract: An equipment assembly for preparing, harvesting and collecting particles is disclosed. The assembly comprises a tandem filter system with one or more high pressure filters, one or more low pressure filters and one or more collection vessel. Particles can be prepared, harvested and collected continuously, semi-continuously or in a batch-type operation. A tandem filter system and its method of use are also disclosed. Particles made with the assembly and according the instant methods are also disclosed. The assembly provides improved particle harvesting and collection over other systems and permits continuous particle formation, in particular by dispersion of a solute-containing process fluid within a supercritical anti-solvent.
    Type: Application
    Filed: September 14, 2015
    Publication date: December 31, 2015
    Applicant: CRITITECH, INC.
    Inventors: Greg S. JOHNSON, Bala SUBRAMANIAM, Fenhui NIU, Jahna C. ESPINOSA