PermeGear, Inc. grew from a 1973 New Jersey precision-machining shop into a manufacturer of glass diffusion cells and related equipment for membrane-transport and drug-diffusion research. Since taking the PermeGear name in 1994, the company has developed hundreds of Franz, Side-Bi-Side, and In-Line Cell variations, with custom diffusion cells remaining a specialty. Its Allentown operation also supports research laboratories with preliminary membrane-diffusion testing, training, consulting, and equipment repair.
Spectrocell IncSince 1955, Spectrocell Inc. has manufactured precision spectrophotometer cells and cuvettes for analytical science, continuing the work of its predecessor, Precision Glass Products Company. The Oreland, Pennsylvania manufacturer produces standard and custom cells in its 14,000-square-foot plant, including specialized designs such as permanently fused gas-filled quartz cells. Spectrocell is the only U.S. facility dedicated to manufacturing these cells and operates under MIL-I-45208 quality-assurance requirements.ORELAND, PA
Hausser Scientific CompanyFounded in 1986 as a manufacturer of glass counting chambers, Horsham-based Hausser Scientific now supplies hemacytometers and custom glass products to laboratories, hospitals, and industrial customers worldwide. Its history includes bringing German and American Optical/Reichert-Jung product lines to Pennsylvania, while its manufacturing operation also fabricates small glass components to customer specifications for uses beyond the medical field.HORSHAM, PA
Membrane Specialists LLCMembrane Specialists LLC designs, fabricates and commissions customized membrane-filtration systems for liquid separation, supported by laboratory testing and process-development services. Based in West Chester, the company draws on 30 years of experience, while principals David Pearson and Lewis Pain bring more than 70 years of combined membrane-technology experience and prior careers with PCI Membranes. Its independent approach to membrane selection spans applications from water treatment to food and beverage processing, with pilot systems available for trials from benchtop scale to 15,000 gallons per day.WEST CHESTER, OH
PorometerSince its start in 2007, Porometer has focused exclusively on porometry, designing and manufacturing pore-analysis instruments and software for filtration and separation research and quality control. A brand of Aptco Technologies, the company engineers its systems in-house in Germany and pairs them with application-lab testing and technical guidance; its instruments are used in more than 36 countries.ANNAPOLIS, MD