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. 27, 2023
Filed:
Sep. 03, 2021
Applicants:
Michael M. Khonsari, Baton Rouge, LA (US);
Lijesh Koottaparambil, Baton Rouge, LA (US);
Inventors:
Michael M. Khonsari, Baton Rouge, LA (US);
Lijesh Koottaparambil, Baton Rouge, LA (US);
Assignee:
BOARD OF SUPERVISORS OF LOUISIANA STATE UNIV. A.M., Baton Rouge, LA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 33/28 (2006.01); G01N 1/10 (2006.01); G01N 1/28 (2006.01); G01N 13/02 (2006.01);
U.S. Cl.
CPC ...
G01N 33/2888 (2013.01); G01N 1/10 (2013.01); G01N 1/28 (2013.01); G01N 13/02 (2013.01); G01N 2001/1031 (2013.01); G01N 2013/0208 (2013.01);
Abstract
Methods of evaluating viscous compositions are disclosed. The methods may be used to evaluate degradation levels of lubricants including grease. The methods may include preparing a surface for testing by leveling and flattening a viscous composition, placing a drop of a liquid on the flattened leveled surface, evaluating the observed contact angle between the drop and the surface, and then comparing the observed contact angle to a reference contact angle.