With regard to patentability issues with such matter, see GL/PCT‑EPO G‑II, 4.1.
Source: http://www.epo.org/law-practice/legal-texts/html/guidelinespct/e/f_ii_7_2.htm
Date retrieved: 17 May 2021
Source: http://www.epo.org/law-practice/legal-texts/html/guidelinespct/e/f_ii_7_2.htm
Date retrieved: 17 May 2021