hi all
as you know, when some companies want to produce a marketing product, first they try to prepare it in lab scale from previous reports especiaaly patents, for example in drug industry or cosmetic
my questions are
1-why they try to produce something for example a drug which has been synthesized and reported before? I mean what is their aim, do they want to change sth?
2- why patents are the most trusted reports for their works?
thanks for your answer