What about a distinction between people who license a patent to only one company (e.g., a university researcher creates a fast-and-accurate HIV test, the univer

What about a distinction between people who license a patent to only one company (e.g., a university researcher creates a fast-and-accurate HIV test, the university licenses it to a company to produce & market it) versus companies who hold a patent and try to collect licensing fees from every company under the sun, most of whom have no connection to another?