Born from an applied physicist’s dining-room experiments measuring dissolved oxygen in wine, WinePrO2 makes a patented Proactive Decanter and Preservation System. Its U.S.-made device uses controlled pure oxygen to accelerate decanting in under a second, while an argon cartridge helps preserve unfinished bottles; users can adjust the treatment to suit their taste. The company’s data-driven approach grew from testing that began in 2010 after a 2008 visit to Northern California wine country.