ALEXANDRIA, Va., July 7 -- United States Patent no. 12,672,660, issued on July 7, was assigned to Starbucks Corp. (Seattle).
"Extraction cell" was invented by Kieran Murphy (Seattle), Elizabeth Guilherme (Seattle) and Jeffrey J. Chapman (Seattle).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of preparing a white coffee extract can include loading extraction material into an extraction cell having a first portion and a second portion. The extraction material can include ground coffee with a density between 0.2 g/ml-0.4 g/ml and a mean particle diameter between 700 micro metre to 900 micro metre. The method can further include introducing a flow of extraction medium through the first portion of the ex...