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:
May. 16, 2017
Filed:
Nov. 17, 2015
Applicant:
Sp Industries, Inc., Warminster, PA (US);
Inventors:
Theodore Hall Gasteyer, Naperville, IL (US);
Robert Rex Sever, Arlington Heights, IL (US);
Balazs Hunek, Chicago, IL (US);
Nigel Grinter, Buffalo Grove, IL (US);
Melinda Lee Verdone, Hoffman Estates, IL (US);
Assignee:
SP Industries, Inc., Warminster, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F26B 5/06 (2006.01);
U.S. Cl.
CPC ...
F26B 5/06 (2013.01);
Abstract
System and method for lyophilization or freeze-drying is provided. During the freezing step, the material or solution to be frozen is initially brought to a temperature near or below its freezing temperature after which the pressure in the freeze-dryer chamber is reduced to induce nucleation of the material.