One of IBM’s most important patents was filed around 1987–I don’t remember the date exactly-it covered the cookie. Even back then IBM was subject to patent tro

One of IBM’s most important patents was filed around 1987–I don’t remember the date exactly-it covered the cookie. Even back then IBM was subject to patent trolls patenting things like using the ctrl key, etc. and then going after IBM. They liked having a huge collection of patents and even disclosed inventions that were not patented but instead published in a publication (I think it was called something like The IBM Invention Disclosure Bulletin) that was available in only a handful of public libraries, like the New York public library. That way if they wanted to use a technique that they had already disclosed they could use these publications of proof of prior art. I filed a few ideas that they said they weren’t interested in that didn’t even qualify for this level of disclosure.