ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,912, issued on Dec. 16, was assigned to Caterpillar Inc. (Peoria, Ill.).

"Crankcase oil separator for internal combustion engine" was invented by Rodney Allen Lawrence (Frankfort, Ind.), Brandyn A. Stack (Lafayette, Ind.), Eric W. Ferguson (Cottage Grove, Minn.) and Yegor Litvinov (Shakopee, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Apparatuses, systems and methods are disclosed including apparatus for separating oil from a blow-by gas of an engine. The apparatus can include an outer housing, an inner housing, a filter, one or more ports, a first cover and a second cover. The inner housing can be positioned within the outer housing and de...