As of today, there is a new look to, and new features in, the (free) official British database of registered trade marks. It contains both national marks and those international marks (Community, and Madrid Agreement Protocol) which apply to the UK.
Besides incorporating the former beta search option, it includes some other useful features. I will describe them in order as you move down the search page (much the best thing to do, to avoid error messages). Helpful advice is given in the right hand margin.
Searches will be assumed to be for words alone (and not images such as an owl or mountain) unless this is altered in the box at the top of the search page. Images, or images and words, can be selected.
Next you select any words wanted. The search will default to the maximum found, "contains string", unless altered. Hence a search for "teruni" will find Manchester United. This was the beta feature.
Next you select the images, a new feature. This is based on the Vienna Classification. You click open three successive boxes to drill down to a specific class. Hence mountains would be found by asking category 06, Landscapes, and then 01, to make 06.01. A further image class can be requested.
Next the Nice Class can be requested. This is the area of activity in goods or services. The Classification link in the left hand margin offers an excellent, in-house tool for identifying possible classes.
Finally you can limit the search by filing date or by status (registered, applied for and so on). Only registered, applied for and recently lapsed applications will be present.
The hit lists are presented in an attractive manner, with any images present appearing even if a word search was requested. A search for Paramount as a word together with Vienna class 06.01 gave me 19 results, some looking rather unusual. A useful feature is that you can add specific marks to a "picking list" for later study. I would encourage running different searches (by spelling, or by criteria requested) to build up a list, rather than a too hasty one-off search.
All this makes quite a useful package. It is important, though, that users are aware of what is lacking. The Companies House database should also be searched to look for similar marks among registered company names. A search for proprietors (owners of marks) will give, as explained, only those in the UK system. And inevitably, there will be bugs in the system.
Lots of information on trade marks is given by the UK Intellectual Property Office.