Today in 1947, US Patent 2416007 A was issued, an invention of Hans Joachim, for his “Method of Clarifying and Stabilizing Beer and Like Beverages.” There’s no Abstract, but it’s described as an “invention relates to a process for treating beer or similar beverages, whereby the beverage is improved in clarity, stability and qualities of brilliance and sparkle, and which preserves and enhances taste and bouquet of the product.”