On 8 February 2013 10:57, David Richfield davidrichfield@gmail.com wrote:
I don't see this as an actual patent troll: the people in question actually use the technology that they patented for self-guided walking tours: the tourist calls the number related to the specific site, and hears information about it. I think they were just a bit overoptimistic about what was patentable, and/or how broad the coverage given by their their patent was.
I think this letter itself, however, is pretty unambiguously an example of the action of patent trolling.
- d.