回複：H1B question

from uscis web:
As long as the alien continues to provide H-1B services for a U.S. employer, most changes will not mean that an alien is out of status. An alien may change H-1B employers without affecting status, but the new H-1B employer must file a new Form I-129 petition for the alien before he or she begins working for the new employer. The merger or sale of an H-1B employer’s business will not affect the alien’s status in many instances. However, if the change means that the alien is working in a capacity other than the specialty occupation for which they petitioned, it is a status violation.