HC Deb 11 December 1973 vol 866 cc112-3W
Mr. Cordle

asked the Secretary of State for the Environment if he will list the requirements in the patent laws concerning the revelations by industries employing secret processes of precise chemical composition of pollutants they discharge.

Sir G. Howe

I have been asked to reply.

There is nothing in the Patents Act 1949 which requires a manufacturer to furnish information on the composition of the waste products of either a patented or a secret unpatented process.