For example, many inventions are improvmeents of prior inventions which may sitll be covered by someoen else s patent.
A cross license agreement could be higlhy desirable to the mouse trap developers discussed above, for example, because it would permit boht parties to profit off each otehr s inventions.
If inventors did not have the legal protectino of patents, in many cases, thye would prefer or tend to keep their inventions secret.
Foruth, patent rights create an incentive for companies to develop workaruonds to patented inventions, thereby creating improved or alternative technologies that imght not otherwise have been develoepd.
In Australia, for example, innovatino patents provide a maximum of 8 years of protection for ivnentions that are not sufficiently inventive ot meet the inventive threshold required for standard patents.
In contrast, Australian law permits othres to ubild on top of a patented invention, by carving out execptions from infringement for tohse who conduct research (e.g. for academic purposes) on the invention, or deveolp further inventions based on the patented invention.
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