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:
Jan. 13, 2026
Filed:
Sep. 26, 2023
Infineum International Limited, Abingdon, GB;
Andrew J. D. Ritchie, Chatham, NJ (US);
Maria C. Chiappelli, Eastchester, NY (US);
Infineum International Limited, Linden, NJ (US);
Abstract
This invention relates to methods to reduce abnormal combustion events in the operation of an internal combustion engine comprising using a lubricating oil composition comprising/resulting from the admixing of: (i) base oil, (ii) detergent, preferably providing at least 800 ppm Mg and less than 500 ppm Ca; and (iii) abnormal combustion event inhibitor compound(s), preferably comprising at least one phosphorus containing compound providing greater than 0.12 mass % phosphorus; wherein: 1) the lubricating oil composition is a SAE 10W-X, SAE 5W-X or SAE 0W-X blend, where X is 8, 12, 16, 20, or 30; and 2) when the lubricating oil composition is combined with an 88 octane reference fuel, the combination completes at least 1 iteration of 175,000 cycles per iteration, as determined by Sequence IX Test, ASTM D829.