There are of course tons and tons of R&D labs working on things with medium-term commercial applications, and the question is why so few of them get results as good as Edison's. More recent examples of hyperproductive labs like Xerox PARC, DARPA, and early Google suggest that this is still entirely possible, but it also seems difficult, fragile, and unlikely to maintain extreme productivity once the founder's attention is elsewhere. I haven't looked into these labs very deeply, but my understanding is that they all depended on a very specific culture w... (read more)
VC works because making a startup can be extremely profitable. Making patents used to be quite profitable, but is that still the case? I can't recall seeing someone make lots of money from their patent in recent years. (The exception is the pharmaceutical industry, where patents seem to de facto work differently than the rest of the economy. This industry does have financial mechanisms for incubating patentable innovations, which is fortunate because developing the patented products is ridiculously expensive.) When I hear about patents being used these day... (read more)