Federal Circuit Upholds Noninfringement Because of Claim Construction of “Extruded Parison”: Plastic Omnium v. Donghee America

The Federal Circuit recently upheld a summary judgment of noninfringement based on an undisputed claim construction in Plastic Omnium v. Donghee America. The dispute centered on manufacturing plastic fuel tanks by blow molding. Pl… Read More

Court Overturns § 102 Rejection Due to Limiting Preamble

The Federal Circuit overturned a PTAB decision affirming anticipation rejections under 35 U.S.C. § 102 of patent claims directed to “the construction of travel trailers” because the the PTAB “erred in concluding [the preamb… Read More

112 and the Zone of Uncertainty

In consolidated cases Niazi Licensing Corp. v. Boston Scientific Corp. and Niazi Licensing Corp. v. St. Jude Medical S.C. Inc. the district court found U.S. Patent 6,638,268 (“the ‘268 patent”) to be invalid under 35 U.S.C.… Read More

“Circuit For” Interpreted as Means-Plus-Function

Even without the word “means,” claims can be interpreted as means-plus-function, as demonstrated by the Central District of California in a decision in Limestone Memory Systems v. Micron Technologies. The court interpreted the… Read More

Means-Plus-Function Claim Construction of “Customization Module” Results in Indefinite Finding

In William Grecia v. Samsung Electronics (Fed. Cir. 2019) the Federal Circuit affirmed a finding of invalidity for U.S. Patent 8,533,860 (the ‘860 patent) under 35 U.S.C. § 112, ¶2 (indefinite). The invalidly determination for… Read More

On-Sale Bar Applies to Report Generated by Patented Invention

The on-sale bar spelled the end for some of Quest Integrity’s patent claims against Cokebusters in a recent Federal Circuit decision. Interestingly, the on-sale bar applied not because of a sale of a claimed invention but becaus… Read More

Markman Ruling Finds Preamble Limiting, Claim Term Indefinite

The Southern District of Texas issued an interesting Markman ruling in ConocoPhillips v. In-Depth Geophysical. While the court construed most of the claim terms in ConocoPhillips’s favor, In-Depth managed to secure rulings that… Read More

Specification Provides Insufficient Structure for MPF Claim

Granting summary judgement to a defendant accused of patent infringement, a court held two patent claims including the term “control unit” indefinite, finding the description in the specification of a “tone control circuit… Read More

Using Claim Construction to Import Limitations

In Continental Circuits LLC v. Intel Corp. No. 2018-1076 (Fed. Cir. Feb. 8, 2019) the Federal Circuit determined the district court erred in its claim construction and explained the high bar that must be met to import limitations… Read More

Plain and Ordinary Claim Construction

In Wisconsin Alumni Research Foundation v. Apple, No. 2017-2265 (Fed. Cir. Sept. 20, 2018), the Federal Circuit construed a pair of claim terms under their plain and ordinary meaning in reversing summary judgment that Apple was n… Read More