Not really a patent troll, as that definition specifies a troll as a patent holder who doesn't actually have or intend to have a product to market utilizing the patented technology they claim. BriarTek at least has a SEND device on the market now, and they were members of the relevant RTCM committee.

Doug you have my sympathies, this is the dilemma of every standards organization. You might ask your legal counsel if the following amendment might have caught BriarTek's claim at an earlier juncture: “The ballot to approve every RTCM standard shall ask the member to identify **IN WRITING** any applicable patents **ISSUED OR PENDING** they are aware of which are not identified in the standard.” Patent law is way more complicated than I can really understand, but we wrote our own bylaws to attempt to compel everyone voting on a standard or guideline to disclose a patent interest before approving the standard. Its damned miserable to look around a room and realize someone working with you in the standards effort may have embedded their novel idea into your standard and are awaiting ratification to seek compensation for it. In an industry where innovation takes place among numerous companies outside the standards body, this is a constant risk (or, temptation for patent holders everywhere).