Aushon Biosystems of Billerica, Mass., has received US Patent No. 8,246,760, "Continual flow pin washer." The patent describes a multi-chambered deposition pin wash station that includes a lower chamber and an upper drain basin connected by wash tubes. According to the patent, cleaning fluid is provided to the lower chamber and passes through the cleaning tubes into the upper drain basin. The cleaning tubes are adapted to clean a single deposition pin with a single tube per wash cycle, the inventors state.