Today in 2012, US Patent 8240155 B2 was issued, an invention of Kevin Dale, for his “Method of Presenting Beer.” Here’s the Abstract:

A method for serving beer from a font includes the steps of first chilling a glass for the beer to a temperature of below, at least, −5° C. and then filling the glass with beer from the font, so that crystals of frozen beer are present in the drink below the head of foam on the beer that is created when the beer is poured.