If you use assistive technology (such as a screen reader) and need a
version of this document in a more accessible format, please email firstname.lastname@example.org.
Please tell us what format you need. It will help us if you say what assistive technology you use.
Patent decision O/100/87 in the matter of Letters Patent numbers 1468940 and 1538783 in the name of Halcon SD Group Inc and the matter of an application by BP Chemicals Limited for a Compulsory Licence, dated 15 June 1987.