US 7,462,490 B2
	Combinatorial lubricating oil composition libraries
Robert H. Wollenberg, Orinda, Calif. (US); and Thomas J. Balk, San Francisco, Calif. (US)
Assigned to Chevron Oronite Company LLC, San Ramon, Calif. (US)
Filed on Oct. 31, 2003, as Appl. No. 10/699,529.
Prior Publication US 2005/0095718 A1, May 05, 2005
Int. Cl. G01N 33/26 (2006.01)

U.S. Cl. 436—60  [436/55; 506/13; 506/22; 506/23; 508/110]

25 Claims

1. A combinatorial lubricating oil composition library comprising (i) a plurality of different lubricating oil compositions comprising (a) a major amount of at least one base oil of lubricating viscosity and (b) a minor amount of at least one lubricating oil additive, wherein the plurality of different lubricating oil compositions is at least 20, and (ii) lubricating oil composition property data for each of the plurality of different lubricating oil compositions and further wherein the lubricating oil composition property data is derived from conditions associated with an engine test.