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. 16, 1998
Filed:
Dec. 02, 1996
Applicant:
Inventor:
Helen T Ryan, London, GB;
Assignee:
Ethyl Petroleum Additives Limited, Bracknell, GB;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
508287 ; 508373 ; 508375 ; 508376 ; 508551 ; 252 785 ;
Abstract
Hydraulic fluid compositions and additive concentrates are described that provide improved wet filtrability. The additive components comprise a mixture formed from at least (a) a zinc dihydrocarbyl dithiophosphate anti-wear agent, (b) a succinimide compound, and optionally (c) one or more alkali metal or alkaline earth metal-containing detergents.
Quick Actions:
Ryan, Helen. (1998). Hydraulic fluids (U.S. Patent No. 5767045). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5767045
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