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High Court Won't Review Fight Over Indefiniteness Test

The U.S. Supreme Court has rejected an Infinity Computer Products Inc. appeal over whether the Federal Circuit has created a new standard on indefiniteness, cementing a win Oki Data Americas Inc. secured at the circuit court in a patent dispute.

Justices Told Fed. Circ. Went Rogue On Indefiniteness Test

"Winning" Prosecution Arguments Can Invalidate Your Patent As Indefinite | Sheppard Mullin Richter & Hampton LLP

On February 10, 2021, the Federal Circuit in Infinity Computer Products, Inc. v. Oki Data Americas, Inc., No. 20-1189 (Fed. Cir. 2021) affirmed a decision by the U.S. District Court of Delaware that patent claims were invalid for indefiniteness based on conflicting positions taken by the patentee during prosecution. Specifically, the Federal Circuit held that the conflicting positions leave one of ordinary skill without reasonable certainty regarding the scope of the invention. This Federal Circuit decision is a reminder to patent applicants that piecemeal success before the Patent Office that does not conform to a coherent overarching prosecution strategy can invalidate patent rights.

Stick to the Fax: Conflicting Statements Made During Prosecution Lead to Indefiniteness | McDermott Will & Emery

Conflicting Prosecution Statements Lead to Indefiniteness

Thursday, February 18, 2021 In deciding whether use of the term “passive link” to define a connection between a computer terminal and a fax machine rendered a patent claim indefinite, the US Court of Appeals for the Federal Circuit affirmed the district court’s finding of invalidity based on conflicting statements made by the patent owner during prosecution.  Infinity Computer Products, Inc. v. Oki Data Americas, Inc., Case No. 20-1189 (Fed. Cir. Feb. 10, 2021) (Prost, C.J.) Infinity owns a patent directed to providing a circuit for interfacing a personal computer with a facsimile machine to enable the facsimile to be used as a scanner or a printer for a personal computer. The patent seeks to accomplish all of the objectives of a scanner or a printer in a simple, straightforward manner through the use of a circuit of highly simplified design and low cost. The patent claims recite that this functionality is accomplished “through a bi-directional direct connection via a passive link between the facsimile machine and the computer.” Infinity asserted the patent against Oki in district court.

Federal Circuit Holds That The Term "Computer" Is Indefinite Based On Conflicting Positions Taken During Prosecution | Vinson & Elkins LLP

To embed, copy and paste the code into your website or blog: On February 10, 2021, the Federal Circuit held that the term “computer” was indefinite because the prosecution history included arguments distinguishing prior art references that relied on conflicting understandings of the term. Infinity Computer Prods., Inc. v. Oki Data Am., Inc., No. 2020-1189 (Fed. Cir. Feb. 10, 2021). Infinity Computer Products, Inc. (“Infinity”) sued Oki Data Americas, Inc. (“Oki”) for infringement of U.S. Patent 6,894,811 (the “’811 patent”) and three other patents that share a common specification with the ’811 patent (collectively, the “asserted patents”). The asserted patents covered systems and methods for using a fax machine as a printer and scanner for a computer. The asserted claims recited that a “passive link” was used to connect the computer to the fax machine.