A Logical Language like Lojban could solve the problem of multilinguality in the European Patent system, especially with regard to the Community Patent. A text properly written in Logical Language would be translatable to all other languages automatically. At the same time, the experience of Logical Language shows that normal human language can be equivalent to a programming language. Especially patent descriptions should be written in turing-complete Lojban. If computer programs are to be patentable, so should patent descriptions be.
Legal concepts are equivalent to programming concepts.
Especially in complicated matters like software patents some help from readers is often necessary.