Principles for determining the scope of patent protection
(A) the center has the principle of restriction
According to the principle of central limitation system, patent claim is the basis of patent protection scope. However, when interpreting the claims, we should take the essence expressed in the claims as the center, comprehensively consider the purpose and nature of the invention-creation, as well as the specification and drawings, and bring the technology within a certain range of the center into the scope of protection. There is no need to insist on the required written record.
(B) the principle of the external restraint system
The principle of peripheral definition requires that the claims should be understood and interpreted strictly according to the literal meaning of the claims, and no other extended interpretation is allowed.
(3) The principle of compromise
The principle of compromise is between the above two, and the scope of patent protection should be determined according to the substantive content indicated in the claim. However, if you have any objection to the technical features pointed out in the claim, you can refer to the specification and drawings for explanation.