According to the section "Cost 3" of "The Pros and Cons of Patents", only the creator of an idea can decide if that invention deserves the amount of time and effort  invested protecting it.  
The problems appear when patents are too narrow because this can lead to immediate confrontations between competitors or other inventors  that <u>create a very similar product</u> or a slight variation of a product that was patented first,  but doesn't actually violate any rights and it's appealing to the same market or targeted public.
Thus they say they came up with that idea on their own and a legal debate rises up, because there is actually no infringement but the ideas are very similar, only different in slight variations.
So those trivial circumstances can lead to a legal affair in court, because  the rules about infringement can be tangling. 
 
        
                    
             
        
        
        
B) to demonstrate a lesson about the importance of scientific research
The article focuses on the research done to conclude that the crater formed was due to a meteorite, not a volcano and further goes to mention the other hypotheses drawn from it, such as the craters on the moon. The final few sentences indicate that scientific research is also being done on other events.
        
             
        
        
        
The bolded word here is the BESTSELLER. This kind of complement is a direct object complement. The adjective overnight denotes to the object bestseller which is an adjective. Another adjective complements another adjective, thus, the term direct object.