Which genre, featuring little or no speaking, as in the piece contact by susan stroman, has moved from relative obscurity to tony award-winning success in recent years?

dance theatre        

Explanation:

Contact was a musical dance play which was developed by John Weidman and Susan Stroman. The playwright of "Contact" was by Susan Stroman. They mainly developed this musical play for Lincoln Center Theater. It was an one act play in the form of dance.

The performers of the 'Contact' tells short stores to their audience through their dance acts. The first performed in the year 1999. Conatct was awarded with Tony award for the best musical category in 2000.

Thus genre into which Contact falls is dance theatre.  

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a factory opens that mass-produces light bulbs.

explanation:

not sure if that's an answer to your questions but this is an example! : )