So it's not enough to just have those phrases in there (as they already are)...
13.4 (c) hereby assign to us by way of future assignment with full title guarantee (insofar as title to them does not automatically vest in $COMPANY as a consequence of your Employment subject to clauses 39-43 of the Patents Act 1977) all copyright arising in any original material (including source code and object code for software) and all other Intellectual Property Rights produced by you in the course of your Employment, whether during our normal hours of business or otherwise, or at the premises or using our facilities or otherwise, for the whole term of such copyright including any extensions or renewals thereof and including the right to sue for damages and other remedies for any infringements of the copyrights; and