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Re: Burton Matrix
Don't worry about the delay. I don't mind long running discussions. :-) Hmm. Interesting. That's a bit different from what I've been assuming the definitions of open/closed and proprietary/public-domain were. I would have described a patent as open, as it's visible, and you can actually patent new innovations based on it without permission of the patent holder (anybody can see it, and anybody can improve it) but proprietary, as it cannot be used except with permission of the patent holder. After it expires, of course, it moves to the open/public-domain quadrant, as it's no longer proprietary. The innovations based on it have to expire in turn before they become public domain, of course.
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