Carl Nett, director of United Technologies Research Center, has in two and a half years added 62 scientists and engineers to the center--bringing the number of Ph.

FORBES: The thinker

United Technologies is a fuel cell leader, and David Parekh, director of the United Technologies Research Center, says that expertise has allowed the company to improve the energy density of a standard flow battery by 10 times, albeit on a small scale.

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"The flow battery architecture has huge advantages, " says Michael Perry, project director of electrochemical systems at United Technologies' Research Center.

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United Technologies' ( UTX - news - people ) Research Center.

FORBES: Out Of The Labs