Have a look at the website of the Irish Patents Office - http://www.patentsoffice.ie/ - there's plenty of useful information there. You can phone them for a chat too, I have found them to be very helpful.
Once you have a broad idea of the options open to you it would be worth phoning a few patent agents (here's a list) or trademark agents (list here) and see who will give you a free consultation and a good price.
I have some experience of dealing with patent attorneys, there are some terrible providers out there. My experience with fr Kelly has been exceptional, some others rush to take money from you and I'm quite convinced will overpromise and under deliver. I have no affiliation but drop them a line, good guys
I have some experience of dealing with patent attorneys, there are some terrible providers out there. My experience with fr Kelly has been exceptional, some others rush to take money from you and I'm quite convinced will overpromise and under deliver. I have no affiliation but drop them a line, good guys