How to Use "rightful" with Example Sentences

1. Yet rightful parents often do not learn that their child has been returned .
2. The most contentious point is a change to determine who is the rightful inventor .
3. The rightful heir , keeping his ancestry darkly secret , a necessity to preserve his life .
4. Apple claims it 's the rightful owner of the ipad trademark in china , of course .
5. The opposition leader mir hossein mousavi alleges massive fraud in the election , saying he is the rightful winner , not ahmadinejad .