Bokeh said:
Some major corporations actually pay people to search out similar companies for the very reasons that Bambinod explained above. They know that if they fall asleep on the issue of defending their trademarks, it could cost them.
All major corporations pay people to do these searches, not just some. It's also extremely easy. The PDF that Fruitkitty linked is a public filing from the United States Patent and Trademark Office. It's like watching a news feed, you just need somebody to look at the new filings every day.
ABDL4ever said:
Well to be fair I think it was actual copywright infringement.
Example: Snuggies the diaper/Snuggie the blanket with sleves.
I got one as a presant from my mom one year and have given some as gifts myself. (Snuggie the blanket)
Trademark. It was trademark, not copyright. You can't copyright a one-word name. They're two completely different things with different purposes.
Copyright is a protection for creative works: it protects things like books, art, music, photographs and video games, among others. It's a legal right to stop people from making copies of a creative work without permission as a way to give creative people an incentive to do their creative thing. The idea being that if there's no way to stop anyone copying, say, your book, then after you won't make any money from writing it because one guy will just scan it and post it on the Internet. You can't copyright single words or short phrases, and you can't copyright something that isn't original (like, if you just draw a circle, you can't copyright that). It's about rewarding creativity.
Trademark is a protection for logos, slogans, and jingles used for business. The idea behind trademark is to avoid confusing people about where stuff comes from. For example, if you see a red label with "coca-cola" in white script, you know that was manufactured by the Coca-Cola Company and you know that it's safe to drink the stuff in the bottle. Similarly, if you see, say, the Nike Swoosh on stuff, you can feel confident that it's a good quality shoe or piece of clothing. Even ABDL companies do this with things like the diaper names. If somebody starts talking about a Bellisimo, we all know that refers to a diaper made by Bambino and not to some other diaper.
The Snuggies thing was a
trademark dispute. Kimberly-Clark said "hey, Snuggies sounds too much like Huggies, people will get confused and think they're related." The guys making Snuggies decided that rather than try to fight that out, it would be best for everyone is they just changed the name to something more agreeable.
Edit: One more thing on this. Where people get confused is that some things can have both. Let's take the
Starbucks logo as an example. It's a pretty artistic logo, it's got that siren drawing with a really distinctive green color and a couple stars in there. It's also the thing Starbucks sticks on all its coffee cups and shops to let you know that what you're getting comes from the Starbucks company. So that logo might be protected by both copyright and trademark. What that means in practice is that using the logo on stuff that doesn't come from Starbucks is a problem, and ALSO just making a bunch of copies of the logo could be a problem (like, say if you tried to sell stickers without permission).