Do they have a claim? Maybe. But they do have a moral claim? This is the interesting area. From my perspective, they have no more claim over your use of any ide

Do they have a claim? Maybe. But they do have a moral claim? This is the interesting area. From my perspective, they have no more claim over your use of any ideas that you may have picked up from your time with them as you can claim from them picking up your ideas from your time with them. All interactions are multi-way. No one person or group can really claim the high ground in these interactions as all parties are part of the interaction and in some way or another contribute to the idea generation process.