Usually, when filing a non-provisional patent application for an invention, all the inventors will file an oath or declaration and information data sheet. Information data sheet(refered as "IDS" in the following) requires all the inventors' name and address, and correspondance for communicating with PTO during the prosecution . The Patent and Trademark Office will usually communicate with your patent attorney or agent who applied the patent on behalf of the inventors. It is patent attorney's responsibility to keep inventors informed. So basically, whether you should be informed with regarding to the patent application or the patent issurance, really depends how your company's attorney handle the case. In my opinion, they should do so. Because keeping their clients informed is required by law.
In sum, if you truly believe you are one of the inventor, you have right to have your name on that list.