ESM’s patents include the following:
US 7,017,277 “Vacuum Treatment of an Input Stream Without Ruining Delicate Output Fractions” (2006). This patent covers the separation of shells and membrane.
US 6,946,551 “Preparation of Hyaluronic Acid from Eggshell Membrane” (2005). This patent covers the preparation of hyaluronic acid containing eggshell membrane products.
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