Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Crystallization of Powders Having Uniform Particle Sizes by Ostwald Ripening at Large Levels of Supersaturation Patent Drawing, US Patent 6,379,459.
Public Domain.
