Some of these are patented 

http://syntheticneurobiology.org/PDFs/US20130116165.pdf

some are patented but can be used and are actually used in industrial labs. in some cases MTA is required.

When all else fails, try $$$; it usually (well, almost always) works.  ;)

It's all up to the lawyers and disclosure of results due to the fact that most optogenetic reagents were developed with government funds.

Hi everybody, thanks very much for your opinions and suggestions, very helpful and interesting!