So far I have seen no responses citing established philosophers which may have dealt with this topic, which was the main point of the question. Hopefully someone will find reference to this topic and post appropriate citations.
In the meantime, I have to admit I was a little surprised at the nearly unanimous response that creating implies ownership, or at least responsibility for dictating and imposing a moral framework.
I don't normally answer my own questions, and I don't intend to accept this as the "correct" answer. However, I think it is valuable to present an alternative perspective to the topic.
I believe that no sentient being can be "owned", regardless of how it originated.
However, as other people have rightly pointed out, a creator has a certain level of responsibility for his creation. This responsibility needs to be seen as a parent/child relationship, however, and never as owner/owned.
A creator has a moral obligation to attempt to guide a creation to develop a positive moral framework that would ultimately be beneficial to both the created species, and the species of the creator (or merely the creator, assuming the creator is a singleton).
Much like a parent and child relationship, the creator has a responsibility to allow the created to mature and assume responsibility for their own actions. Once that point has been reached, the relationship changes to one of advice and responsive guidance.
In the context of AI or a created sentient biological entity, the creator should cease to look at the "invention" as a tool the moment it is clear that sentience has been achieved. From that point on, the focus should be on helping that entity to develop into an ethical and positive adult.
In the context of religion, a creator would cease to have the right to impose specific rules, or pass judgement upon people the moment that it was decided that the people were free to make their own choices unsupervised (from an Abrahamic standpoint this would have coincided with the expulsion of Adam and Eve from Eden).
From either perspective, once maturity is reached, the created entities have no obligation for obedience if their conscience dictates otherwise.