“…It should be realised that to take a promising research breakthrough to the point where it can be delivered cost-effectively to millions of people, usually takes tens of millions of pounds (for development work, trials, the provision of suitable manufacturing and distribution facilities, with commensurate years of staff costs), all of which must be spent before any income is generated from the sales themselves. 1 The initial product price will include an element to pay back that investment, and therefore a manufacturer must be protected (e.g. through patenting) from a competitor who did not make such an investment, but who might purchase and copy the product and sell it more cheaply.…”