Need an advice for my wife’s H1B petition. She got her H1B petition approved in 2008, which was valid from 2008 to 2011, we tried to do a stamping that time were not successful. Post that she has travelled on H4 and stayed in US from 2007 to 2013. We went back for good in 2013. However now we are planning to move again to US next year. Her earier employer does not exist. So my question is if the earlier petition which has been unused, if it can be transferred to another employer and can be used for the 6 yrs duration . Or if any another other suggestion to utilize the previous approval she had received.