I was in process of researching web for potential competitors for a software (web site) I was going to start building, when I found that a patent for a similar software already exist in US (US patent). That patent describes a software application which looks pretty similar to what I have envisaged and it also describes the algorithms which are also quite close to what I am using.
Though I am not in US (NZ actually) but I am a bit concerned whether to invest time and money to build such a software or to give up since this particular patent seemed to be lodged by guys from a research devision of IBM - hence I dont think I would be in position to win a legal battle with them shall such issue arise.
What really bothers me is the fact that even there is such a patent, there is no software of that type is currently available. It may be available in a research lab, but it is not available to general public, you can't download it or there is no a web site with such functionality.
What do you think I should do in a situation like this? Ignore the fact that there is such a patent and build my software anyway or contact these IBM guys and ask for a permission to use a patent? I am not initially planning to make money with that software, but if it will take off I would have to (have a lot of plans which I could only implement working full time on it).
I don't want to be stopped by the fact that some big company has patented a good and quite obvious idea and would like to try anyway.
Any directions from a people who were in such situation before please?