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:
Dec. 23, 2025
Filed:
Aug. 23, 2022
Applicant:
Shell Usa, Inc., Houston, TX (US);
Inventors:
Stephen Andrew Brown, London, GB;
Mark Robert Friswell, London, GB;
Assignee:
SHELL USA, INC., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63B 79/30 (2020.01); B63B 59/04 (2006.01); B63B 81/00 (2020.01);
U.S. Cl.
CPC ...
B63B 79/30 (2020.01); B63B 59/04 (2013.01); B63B 81/00 (2020.01);
Abstract
The disclosure provides a method for vessel maintenance optimization, the method comprising the steps of: obtaining operational data of the vessel; calculating a Torque Index; calculating a Slip Index; indicating that propeller cleaning is required if the Torque Index exceeds a Torque Index threshold, and indicating that hull cleaning is required if the Slip Index exceeds a Slip Index threshold.