ALEXANDRIA, Va., March 26 -- United States Patent no. 12,259,426, issued on March 25, was assigned to Rohde & Schwarz GmbH & Co. KG (Munich).

"Over the air test chamber with optimized air circulation" was invented by Ralf Meissner (Gilching, Germany), Markus Herbrig (Grafing b. Munchen, Germany), Stefan Schoetz (Kollnburg, Germany), Constantin Sinn (Munich) and Christian Aichinger (St. Englmar, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An over the air, OTA, test chamber for testing at least one device under test, DUT, provided within the OTA test chamber which includes a thermal bubble component adapted to receive the device under test, DUT, comprising an air inlet adapted to supply air into the...