The requirement is for the home address, but I shall reflect on that and let the right hon. Gentleman know the exact details in writing—unless, by a miracle, the answer comes before I finish.

We were talking about UK patent law and what happens in the rest of Europe. I do not want to minimise those concerns, because I have been made aware by lots of industries, particularly the controversial ones, about the extent to which individuals are put under pressure. There are reprehensible attacks on people's homes and, in some cases, even on the businesses supplying the technology.

The benefits of confidentiality in the UK may be limited where the inventor's employers choose to apply for patents in countries where no such confidentiality is available. Confidentiality is available for inventors who are associated with European patents. If other countries follow suit, that will help, too. The fact that confidentiality is not available in every other country is not a reason for doing nothing or for failing to offer the limited protection that it is in our power to provide.

People do not have to use the home address. The business address can be used, but even if it is, it is not beyond the realms of possibility that people can be identified. I hope that the right hon. Gentleman accepts that explanation.