Anybody who's used an inhaler to treat asthma or allergies is familiar with the medicinal aftertaste. That taste is more than an annoyance-it's a sign that a portion of the drug is going to waste in the back of the throat rather than in the lungs where it's needed. Battelle Pulmonary Therapeutics-a company spun off in April from Battelle Memorial Institute in Columbus, Ohio-is aiming to deliver inhalable drugs more efficiently with new "electrohydrodynamic," or EHD, aerosol technology.

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