I'm developed an algorithm for constructing heat maps (eg, maps clicks heatmap) , going to implement. Found that there is already a patent for this method of visualization www.google.com/patents/US8669994 (aka www.google.com/patents/US20110141118), which is similar by ~80 % with my algorithm.
The algorithm I came up with not knowing about this patent (though it already existed ). From a legal standpoint, will be a claims that I stole algorithm?
(More Technical Question) What "Google Analytics" (for example) are doing with such patents in their heat maps? Comes up with something completely new or just ignores the presence of patents?