http://207.219.111.92/requirements/steps1.aspx
If you cannot find anything under the NOC 29 that fits your father's job description, read through the link above and see if anything there will fit. As this is such a unique situation it may be worth your while to contact a reputable immigration lawyer for assistance to get started. Such a pity your Dad can't "invent" his own special NOC? I think Mezo's suggestion is very good. Once your father has worked in Canada for the required period, he could then apply for PR. The "cat" in me is curious about your Dad's invention. There is a possibility if we had an idea of the area it is in you might get more constructive suggestions as well. Anyway, I understand how important these things are to keep under wraps. I hope he has been able to patent it. There is a weekly TV programme on CBC call The Dragon's Den. People promote their inventions and ideas on the show in the hope "The Dragons" (all well known Canadian business people) will give them financial support in exchange for a percentage of their profit/company. It is a REALLY long shot, but I don't know if anyone on the production side of that show may be able to give you any guidance??? All the best!