Upon Reconsideration Court Clarifies That Binary Code Cannot Be Trinary Code

Chamberlain Group, Inc. v. Lear Corp., No. 05 C 3449, 2007 WL 551579 (N.D. Ill. Feb. 20, 2007) (Moran, J.).

Judge Moran granted in part defendant's motion for reconsideration regarding the Court's construction of "binary code."  In its prior claim construction opinion -- discussed here -- the Court defined "binary code" and "trinary code generator," among other terms.  In its discussion of its "binary code" construction, the Court explained that the claims do not limit binary code to a binary number and, therefore, the term encompasses "other numerical and character languages, including trinary code."  Defendant argued that binary code could not be defined as trinary code and that, therefore, the Court should modify its construction to make clear that trinary code cannot be part of binary code.  The Court agreed with defendant that binary code cannot encompass trinary code and, therefore, clarified its explanatory sentence.  The Court explained that binary code could not include trinary code, but that it could include trinary numbers.  But because the Court's actual construction did not mention trinary code, it declined to revise the construction.

Claim Construction Will Not Be Used to Decide Infringement Issues

Chamberlain Group, Inc. v. Lear Corp., No. 05 C 3449, 2006 WL 2632074 (N.D. Ill. Sept. 11, 2006) (Moran, J.)

In this claim construction opinion, Judge Moran made an interesting holding regarding the use of claim construction to resolve literal infringement issues. Defendant argued that plaintiff’s proposed constructions of “binary code” and “trinary code generator” were improperly driven by plaintiff’s infringement case. The Court noted that this was an infringement argument. The Court, therefore, would not address defendant’s argument in its claim construction opinion. This does not change my advice that you should explain why you are arguing for subtle variations of a construction. Rather, Judge Moran’s opinion illustrates that, after explaining the purpose of your proposed construction, you should be sure to ground your argument in the intrinsic and extrinsic evidence.