Patent Claim
What does "Patent Claim" mean in law?
Patent claims are the numbered paragraphs at the end of a patent specification that define the precise legal scope of the patent holder's exclusive rights. Claims function as the 'metes and bounds' of the patent, analogous to the property description in a deed, and must particularly point out and distinctly claim the subject matter the inventor regards as the invention under 35 U.S.C. section 112. Independent claims stand alone, while dependent claims incorporate by reference all limitations of the claims from which they depend, adding further narrowing limitations. In Alice Corp. v. CLS Bank (2014), the Supreme Court's analysis focused on whether the patent claims were directed to an abstract idea, demonstrating how claim construction is often the critical battlefield in patent litigation.
Definition
Patent claims are the numbered paragraphs at the end of a patent specification that define the precise legal scope of the patent holder's exclusive rights. Claims function as the 'metes and bounds' of the patent, analogous to the property description in a deed, and must particularly point out and distinctly claim the subject matter the inventor regards as the invention under 35 U.S.C. section 112. Independent claims stand alone, while dependent claims incorporate by reference all limitations of the claims from which they depend, adding further narrowing limitations. In Alice Corp. v. CLS Bank (2014), the Supreme Court's analysis focused on whether the patent claims were directed to an abstract idea, demonstrating how claim construction is often the critical battlefield in patent litigation.
Example
A patent for a new type of battery might include a claim reciting 'a lithium-ion battery cell comprising a cathode of X composition, an anode of Y composition, and an electrolyte of Z composition,' with each element defining the boundary of patent protection.