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Absolutely, patent prosecution is a process. One may amend claim wording to narrow and avoid cited prior art, cancel some claims, or cancel all claims are submit a new set of claims. One may also argue that the cited reference is not valid prior art based on its date or not being in an analogous art, or not teaching all elements of the claim in question.


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To avoid infringement, you need to implement each and every element in any single claim. Thus if a claim has elements A, B, C and D and your product only implements A, B and C, then you don't infringe on that claim since you don't use D. However if your product uses A, B, C, D and E, you do infringe as you implement each and every element of the claim. ...


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Different countries count the life of a patent differently, and sometimes a patent expires in one country one or few days earlier than in other countries. This depends on the national patent law of each country, which may establish that a patent expires at the exact same date as the filing date plus 20 years, or the day before the exact same date as the ...


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