Clearing company names. If another sci-fi franchise has used a particular made-up company name, you can guess that they've "cleared" the name for use. Like the Weyland-Yutani Corporation in the Alien franchise. They're evil. They make androids and bioweapons. There's no way anybody can be suing Fox for defamation because of the Wayland-Yutani corporation.
|Anthony Jones' helmet for The Prometheus Trap. We're actually calling the white version of this helmet the "Ripley" which amuses me to no end.|
But it's also been cleared so not only is it not infringing, there can't be a real Weyland-Yutani that can make a liable claim if you have an evil company with that name. I'm guessing.
Anyway, another certainly cleared company is Taim & Bak, which is a company from the Star Wars universe (although I believe never actually used in any films.)