ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,350, issued on May 27, was assigned to Hamilton Sundstrand Corp. (Charlotte, N.C.).

"Varying topology heat sinks" was invented by Ram Ranjan (West Hartford, Conn.), Kimberly R. Saviers (Glastonbury, Conn.), Kathryn L. Kirsch (Manchester, Conn.) and Ross K. Wilcoxon (Cedar Rapids, Iowa).

According to the abstract* released by the U.S. Patent & Trademark Office: "A heat sink with a primary flow volume, an inlet, an outlet, a bottom plate, a top plate, distribution, heat transfer and collector sections, and flow paths between pillars. The inlet cross-section defines the primary flow volume cross-section and the length of the primary flow volume extends into the heat sink at a right ...