you said that a couple of weeks ago they registered the trademark...
is the status of the trademark 'approved' or 'pending (being proccessed)' or whatever your agency calls it...
There should be two dates. The application date and the published/approval/granted date.
If the trademark has just been applied for, it takes 2-6 months to be granted (my memory's vague on this for UK law). There is a period of time after that is reserved for cases like your, where right holders can come forward and oppose his trademark registration.
This is why as part of the registration process the trademark gets published online and in a hard copy journal. This gives an opportunity for people to oppose the mark when they read the trademark journal.
Even though a trademark can be opposed even years later, it is much easier if you get in early. Plus if you leave it for years, then its harder for you to say that it's affected your business when you've allowed them to use the name without complaining.
It looks like they have just started to register it, it's a good time for you to move on this. You might not need a lawyer to simply oppose his trademark application.
ok i'm assuming you're from the US. I just checked the USPTO site:
PUBLICATION FOR OPPOSITION
If the examining attorney raises no objections to registration, or if the applicant overcomes all objections, the examining attorney will approve the mark for publication in the Official Gazette, a weekly publication of the USPTO.
The USPTO will send a NOTICE OF PUBLICATION to the applicant stating the date of publication. Any party who believes it may be damaged by registration of the mark has thirty (30) days from the publication date to file either an opposition to registration or a request to extend the time to oppose. An opposition is similar to a proceeding in a federal court, but is held before the Trademark Trial and Appeal Board, a USPTO administrative tribunal. If no opposition is filed or if the opposition is unsuccessful, the application enters the next stage of the registration process. A Certificate of Registration will issue for applications based on use, or a Notice of Allowance will issue for intent-to-use applications.
The important bit seems to be
Any party who believes it may be damaged by registration of the mark has thirty (30) days from the publication date to file either an opposition to registration or a request to extend the time to oppose.
I think that even if it's too late for this you can still try to object but it will be trickier. It still seems like you have the stronger rights.
You can read full information at
http://www.uspto.gov/go/tac/doc/basic/afterapp.htm
I think you need to check the USPTO site. Whilst I was reading I did notice a few differences against UK law, so you're best to read the facts there.
[I just re-read and saw that you said he registered the mark in the UK and US, I don't think that you will have any rights at all over his business in the UK, but you should be able to contest his trademark there in US. Geography is very important. I hadn't really thought about that and my replies have all assumed you're both from US. Makes things a bit trickier. I can go and beat him up if he's in the UK
]
Let me know how it goes.
Mg