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Last Updated: March 26, 2026

Claims for Patent: 10,414,995

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Summary for Patent: 10,414,995

Title:	Base stocks and lubricant compositions containing same
Abstract:	A base stock having at least 90 wt. % saturates, an amount and distribution of aromatics, as determined by ultra violet (UV) spectroscopy, including an absorptivity between 280 and 320 nm of less than 0.015 l/gm-cm, a viscosity index (VI) from 80 to 120, and having a cycloparaffin performance ratio greater than 1.05 and a kinematic viscosity at 100° C. between 4 and 6 cSt. A base stock having at least 90 wt. % saturates, an amount and distribution of aromatics, as determined by UV spectroscopy, including an absorptivity between 280 and 320 nm of less than 0.020 l/gm-cm, a viscosity index (VI) from 80 to 120, and having a cycloparaffin performance ratio greater than 1.05 and a kinematic viscosity at 100° C. between 10 and 14 cSt. A lubricating oil having the base stock as a major component, and one or more additives as a minor component. Methods for improving oxidation performance and low temperature performance of formulated lubricant compositions through the compositionally advantaged base stock.
Inventor(s):	Rugved P. Pathare, Lisa I-Ching Yeh, Yogi V. Shukla, Charles L. Baker, Jr., Bryan E. Hagee, Debra A. Sysyn, Kendall S. Fruchey
Assignee:	ExxonMobil Technology and Engineering Co
Application Number:	US15/468,380

Details for Patent 10,414,995

Glossary

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Applicant	Tradename	Biologic Ingredient	Dosage Form	BLA	Approval Date	Patent No.	Expiredate
Iovance Biotherapeutics, Inc.	AMTAGVI	lifileucel	Suspension	125773	February 16, 2024	⤷ Start Trial	2037-03-24
>Applicant	>Tradename	>Biologic Ingredient	>Dosage Form	>BLA	>Approval Date	>Patent No.	>Expiredate

International Patent Family for US Patent 10,414,995

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Country	Patent Number	Estimated Expiration
World Intellectual Property Organization (WIPO)	2017172576	⤷ Start Trial
World Intellectual Property Organization (WIPO)	2017172572	⤷ Start Trial
United States of America	2020010772	⤷ Start Trial
United States of America	2019375997	⤷ Start Trial
United States of America	2019359906	⤷ Start Trial
United States of America	2017283729	⤷ Start Trial
United States of America	2017283717	⤷ Start Trial
>Country	>Patent Number	>Estimated Expiration

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