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:
Jun. 24, 2008
Filed:
Apr. 06, 2005
Applicant:
Laurence C. Chow, Potomac, MD (US);
Inventor:
Laurence C. Chow, Potomac, MD (US);
Assignee:
American Dental Association Foundation, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/447 (2006.01); C01B 25/26 (2006.01); C01B 25/32 (2006.01); C01F 11/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
Nano-particles of calcium and phosphorous compounds are made in a highly pure generally amorphous state by spray drying a weak acid solution of said compound and evaporating the liquid from the atomized spray in a heated column followed by collection of the precipitated particles. Hydroxy apetite (HA) particles formed by such apparatus and methods are examples of particle manufacture useful in bone and dental therapies.