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Generated: September 24, 2019

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Patent: 6,862,890

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Summary for Patent: 6,862,890
Title: Process for production of nanoparticles and microparticles by spray freezing into liquid
Abstract:The present invention provides a system and a method for the production of microparticles and nanoparticles of materials that can be dissolved. The system and method of the present invention provide quicker freezing times, which in turn produces a more uniform distribution of particle sizes, smaller particles, particles with increased porosity and a more intimate mixing of the particle components. The system and method of the present invention also produce particles with greater surface area than conventional methods. One form of the present invention provides a method for the preparation of particles. An effective ingredient is mixed with water, one or more solvents, or a combination thereof, and the resulting mixture is sprayed through an insulating nozzle located at or below the level of a cryogenic liquid. The spray generates frozen particles.
Inventor(s): Williams, III; Robert O. (Austin, TX), Johnston; Keith P. (Austin, TX), Young; Timothy J. (Midland, MI), Rogers; True L. (Austin, TX), Barron; Melisa K. (Conroe, TX), Yu; Zhongshui (Austin, TX), Hu; Jiahui (Austin, TX)
Assignee: Board of Regents, University of Texas System (Austin, TX)
Application Number:10/062,648
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 6,862,890
Patent Claims:see list of patent claims

Details for Patent 6,862,890

Applicant Tradename Biologic Ingredient Dosage Form BLA Number Approval Date Patent No. Assignee Estimated Patent Expiration Status Orphan Source
Chiron PROLEUKIN aldesleukin VIAL 103293 001 1992-05-05   Try a Free Trial Board of Regents, University of Texas System (Austin, TX) 2021-01-30 RX search
Berlex Labs LEUKINE sargramostim VIAL 103362 001 1991-03-05   Try a Free Trial Board of Regents, University of Texas System (Austin, TX) 2021-01-30 RX search
Berlex Labs LEUKINE sargramostim VIAL 103362 002 1991-03-05   Try a Free Trial Board of Regents, University of Texas System (Austin, TX) 2021-01-30 RX search
Biogen AVONEX interferon beta-1a VIAL 103628 001 1996-05-17   Try a Free Trial Board of Regents, University of Texas System (Austin, TX) 2021-01-30 RX search
Serono Inc REBIF interferon beta-1a SYRINGE 103780 001 2002-03-07   Try a Free Trial Board of Regents, University of Texas System (Austin, TX) 2021-01-30 RX search
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Number >Approval Date >Patent No. >Assignee >Estimated Patent Expiration >Status >Orphan >Source

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