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:
Jul. 09, 2019
Filed:
Feb. 15, 2019
Applicant:
Intelligent Virus Imaging Inc., Southern Pines, NC (US);
Inventors:
Assignee:
INTELLIGENT VIRUS INC., Southern Pines, NC (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 1/40 (2006.01); G01N 15/14 (2006.01); G01N 15/00 (2006.01);
U.S. Cl.
CPC ...
G01N 1/4077 (2013.01); G01N 15/14 (2013.01); G01N 15/1468 (2013.01); G01N 2001/4088 (2013.01); G01N 2015/0038 (2013.01); G01N 2015/1486 (2013.01);
Abstract
The method is for quantification of sub-visible particles. A filter membrane is provided that has a plurality of pores defined therethrough. The filter membrane is in operational engagement with a vacuum chamber. The pores are sealed with a sealant. A sample droplet, containing a liquid and sub-visible particles, is applied onto the filter membrane. The liquid dissolves the sealant in pores disposed directly below the sample droplet. The liquid flows through the pores in which the sealant has been dissolved and the sub-visible particles remain on top of the filter membrane. The particles are enumerated in an electron microscope.