RE:Is cesium worth the attention? you decideIf CCD has a patent on a process which makes refining low-grade cesium more profitable, and it works as advertised, wouldn't it make a lot of sense to begin licensing it? Perhaps there are other mines already in operation that have low grade cesium that cannot be extracted/refined profitably. Patents grant the right of exclusion for 20 years from the filing date. So assuming this patent was filed at least two to three years ago, and allowing for the process to go through the patent office, and assuming getting an actual mine on their Taron property might take 7 years, that would only leave half of the time left to actually use it themselves. Licensing makes sense but of course all of the above assumptions have to be true.