Hayward Industries, Inc., v. Pentair Water Pool and Spa, Inc., No. 2017-1124 (February 26, 2018) (nonprecedential) Patent No. 7,686,587

Key point(s):

• Reading limitations from the specification into the claims is a “classic mistake.”

Nalco Company v. Chem-Mod, LLC, No. 2017-1036 (February 27, 2018) (precedential)(3-0) Patent No. 6,808,692

Key point(s):

• A holding involving claim construction and factual issues (such as whether a thermolabile bromine precursor could survive the extreme heat of a furnace without dcomposing) is improper at the Rule 12(b)(6) stage of litigation.

Knowles Electronics LLC v. Cirrus Logic, Inc., No. 2016-2010 (March 1, 2018) (precedential) (2-1) Patent Nos. 6,781,231

Key point(s):

• Limitations not defined in the specification and not commonly understood at the time of the disclosure do not meet the written description standard.