Those ARE registered trademark searches, not patent searches. The same trademark can be registered by multiple companies, because in the registration, you define specifically what type of products and services the TRADEMARK is used for. If there's already a company that has registered that trademark for that type of product or service, you lose. If there isn't, you win. I hold registered trademarks, I know what I'm talking about.
Infringement is all about what the trademark is being used for (overlapping with another company's registered usage) or, in the case of a made up non-common language name, using one that is similar. Here's where your confusion is... "Real Touch" is not a made-up name like "Pepsi" that has no other meaning.
If you hold a registered trademark, you must be willing to defend the trademark if you suspect infringement. The fact that TWO companies have "Real Touch" trademarked for different kinds of sex toys, the earlier of which was published for possible opposition on February 19, 2008, registration was granted for both and there's been no legal action, leads me to believe that DuPont doesn't give a shit about that. If flooring were being sold with that name, I guarantee that DuPont's legal team would be on it in a week.
As for which company would have the rights to the domain if it came under contest, that's up to ICANN arbitration, I believe, and NOT a clear cut decision without arbitration. I'm not an ICANN arbitration expert.
As for the search issue, I just Googled "real touch flooring" (WITHOUT the quotes, so I'd have broader results), and I see no mention of sex toys.
Finally, I apologize, I didn't realize that those links were session-timed. If you'd like to see the registrations, go here:
http://www.uspto.gov/main/trademarks.htm
At the top of the right column, under Get A Trademark Registration, click Search. Pick the Basic search, type Real Touch in the search box, and look at the Live registrations.
I'd love for an attorney to chime in here.