Complex sentence: Norris has held officer and director positions in all of the public companies he founded but eventually resigned from most but currently serves as Chairman and Chief Executive Officer of Parametric Sound Corporation and is Chairman of AirScooter Corporation in Henderson, Nevada.
Split into simpler sentences: Norris has held officer and director positions in all of the public companies he founded but eventually resigned from most. He currently serves as Chairman and Chief Executive Officer of Parametric Sound Corporation and is Chairman of AirScooter Corporation in Henderson, Nevada.