Reminds me of the story of how Porsche wanted to name their car '901', but Peugeot had (has?) a trademark on the three number combination with a zero in the middle. So Porsche had to rename their car to '911'. The rest is history as they say.

https://en.wikipedia.org/wiki/Porsche_901

Intel has copyright on the lower-case letter 'i'. I claim victory.

Victory forfeited by mixing up copyright and trademarks. I know intellectual property is a mess but at least get your terminology right.

Deutsche Telekom has trademarked the use of the color Maganta (RAL-4010) for telecommunications products.

Trademarking colors is very common and to be honest, kinda reasonable given a domain. "McDonald's Yellow" or "Coca Cola Red" are good examples.

https://www.atlasobscura.com/articles/cheerios-color-tradema...

https://www.businessinsider.com/colors-that-are-trademarked-...

https://assets.atlasobscura.com/article_images/45509/image.j...

In 1996 The Netherlands had a mobile network called Hi

They also had an internet provider called Het Net (The Net)