Your question is unclear. One can have an L-1B for a maximum of five years. One can get an additional five years after being outside the US for one year.
J Charles Ferrari Eng & Nishimura 213.622.2255 The statement above is general in nature, as not all the facts are known. You should retain an attorney to review all the facts specific to your case in order to receive advise specific to your case. The statement above does not create an attorney/client relationship.
You need to contact an experienced immigration attorney who can examine the facts of your case including (the time frames associated with your L1B visa) and provide you with a legal opinion. If you are on a L-1B visa, your company normally would have retained an immigration attorney to complete the forms. That could possibly be a way to have your questions addressed.
Legal disclaimer: The statement above is provided by CC Abbott is based on general assistance and not intended to be a legal opinion because not all the facts are provided. The person requesting information and all others reading the answer should retain an attorney who is permitted by the state bar within the jurisdiction who can examine the complete facts and provide a legal opinion on your case. All information provided in the above answer and other information provided by CC Abbott does not create an attorney/client relationship within any state of Federal law.