US Patent Issued to Starbucks on Sept. 1 for "Extraction cell" (Washington Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,721,359, issued on Sept. 1, was assigned to Starbucks Corp. (Seattle).

"Extraction cell" was invented by Kieran A. Murphy (Seattle) and Chelsea L. Rosenkrance (Seattle).

According to the abstract* released by the U.S. Patent & Trademark Office: "An upward flow extraction method, apparatus, and extract are disclosed. The upward flow extraction method can comprise loading extraction material into an extraction cell having a bottom portion and a top portion; introducing a first aliquot of extraction medium through the bottom portion of the extraction cell; expelling gas from the extraction cell through the top portion of the extraction cell; closing the top portion of the extraction cel...