WEST BRIDGEWATER, Mass.--(BUSINESS WIRE)--Pressure BioSciences, Inc. (NASDAQ: PBIO) today announced that it has sold Bench Top (NEP3229) PCT Sample Preparation Systems (PCT SPS) to Johns Hopkins University, the National Institutes of Health (NIH), and a state laboratory of the Commonwealth of Virginia. The PCT Sample Preparation Systems were installed at all three sites prior to the close of the Company’s quarter ended September 30, 2006.