Remember that SRI is a patent troll. They are non-practicing entity. They don't build the things they "invent". They instead write patents then extort the people who do build things.
I say this from personal experience. I created many inventions in "intrusion detection", spent years in data centers making theory work in practice. SRI sued me using vaguely worded patents.
It's a harsh accusation, but objectively true. They never built a commercial intrusion-detection product, but they did sue people.