Thorner and the (Not So) Bright Line Rules of Claim Construction
Briefly

In Thorner v. Sony, Judge Moore articulated two exceptions to the general rule of 'ordinary and customary meaning': lexicography and disavowal, establishing clear guidelines for claim interpretation.
Judge Moore emphasized that when a patentee acts as its own lexicographer, they must provide an explicit definition, which must be clearly articulated for its intended scope to be recognized.
Read at Patently-O
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