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Last Updated: April 26, 2024

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

Glossary

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Applicant	Tradename	Biologic Ingredient	Dosage Form	BLA	Approval Date	Patent No.	Expiredate
Ferring Pharmaceuticals Inc.	NOVAREL	chorionic gonadotropin	For Injection	017016	01/15/1974	⤷ Try a Trial	2021-01-30
Ferring Pharmaceuticals Inc.	NOVAREL	chorionic gonadotropin	For Injection	017016	12/27/1984	⤷ Try a Trial	2021-01-30
Ferring Pharmaceuticals Inc.	NOVAREL	chorionic gonadotropin	For Injection	017016	02/15/1985	⤷ Try a Trial	2021-01-30
Ferring Pharmaceuticals Inc.	NOVAREL	chorionic gonadotropin	For Injection	017016	02/16/1990	⤷ Try a Trial	2021-01-30
>Applicant	>Tradename	>Biologic Ingredient	>Dosage Form	>BLA	>Approval Date	>Patent No.	>Expiredate

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