Z:gnu-www-ja-stallman-mec-india--7b1b4c-Eventually we found another co/en

Eventually we found another compression algorithm which is used in the program that's known as GZIP. But this illustrates the danger that you face: even if you had unlimited resources, you couldn't find out about all the patents that might endanger your project. But you can find out about the issued patents because they are published by the patent office. So in principle, you could read them all, and see what they restrict, what they prohibit you from doing. Practically speaking though, once there are software patents there are so many of them that you can't keep up with them.