The brand Theorem is a crowded brand.
A company called Theorem is suing (pdf) another company called Theorem for trademark infringement, and it brings up an important point about choosing a popular dictionary term for your business name.
The first sign that this is a crowded brand is that the defendant uses the domain name Theorem.co while another company uses Theorem.com—and the company that uses Theorem.com isn’t the plaintiff. The plaintiff uses the domain TheoremInc.net.
So, right off the bat, three companies are using the name Theorem. They are all in the tech space, too.
The defendant is a web development company that recently rebranded from CitrusByte to Theorem. The plaintiff if a digital marketing company. The company that uses Theorem.com provides CAD and visualization technologies.
If you google “theorem,” the plaintiff is #2. Neither Theorem.com nor Theorem.co is on the first page, but two other companies that use the name Theorem are. One is a cannabis company and the other is a marketplace lending technology company.
That’s a pretty crowded brand space.
The plaintiff says that a Fortune 500 company made a presentation to it and used the logo from the defendant in its presentation. Ouch.
Fractal Analytics has filed an in rem cybersquatting 
Domain Name Commission (DNC), which manages New Zealand’s .nz country code domain name, has sued Whois information provider Whois API. The company is also known as Whois XML API.
