Patent Law Practice Center

Burden of persuasion on Petitioner for IPR amendments

On October 4, 2017, the United States Court of Appeals for the Federal Circuit issued its much-anticipated decision in Aqua Products, Inc. v. Matal, addressing en banc whether the patent owner has the burden of proving patentability with respect to submitted amended claims during an inter partes review (IPR) proceeding. Previous panels of the Federal Circuit had ruled that the burden of persuasion to demonstrate patentability was with the patent owner, not with the challenger. Sitting en banc, the Federal Circuit issued a narrow ruling saying that the burden of persuasion must remain at all times on the petitioner, including with respect to demonstration of unpatentability of amended claims.

The ruling of the court was described to be “narrow” by Judge O’Malley, who wrote for the majority in announcing the limited decision. There was no consensus among the Judges with respect to the judgment that should be reached and the rationale that should be employed, which meant very little of what was actually written in the five opinions and some 135 pages was actually precedential. This lack of consensus would explain why it took the Federal Circuit ten months after the oral arguments in this case to issue a decision.

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Federal Circuit reverses PTAB, says Whirlpool claims are anticipated

The U.S. Court of Appeals for the Federal Circuit recently issued a decision in Homeland Housewares, LLC v. Whirlpool Corporation. The original panel voted 2-1 in favor of Homeland Housewares and overturned a final written decision of the Patent Trial and Appeal Board (PTAB), which had confirmed that challenged claims from a Whirlpool patent were valid.

The Whirlpool patent before the Federal Circuit, which had the validity of the claims upheld at PTAB, is U.S. Patent No. 7581688, titled Blender with Crushed Ice Functionality. The ‘688 patent claims a cycle of operation for a blender having a motor, a container and a cutter assembly in which the motor automatically controls the cutter assembly’s rotational speed to effect a pulsing, each pulse having a constant speed phase, a deceleration phase and an acceleration phase. The resulting invention addressed shortcomings in conventional blender devices with a crushed ice functionality as those other prior art devices would often result in ice that was either over or under crushed. Further, conventional devices had difficulties mixing crushed ice with other contents to an even consistency.

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Federal Circuit rejects Google’s petition for rehearing

On April 4, 2017, the United States Court of Appeals for the Federal Circuit issued a brief order denying panel rehearing and denying rehearing en banc in Unwired Planet, LLC v. Google, Inc.

Google filed a petition for both panel rehearing and rehearing en banc. A response to the petition was invited by the court and filed by Unwired Planet, LLC. No reason for the denial of Google’s petition was provided by the Federal Circuit, which is typical. The original panel decision, authored by Judge Reyna and issued on November 21, 2016, found that the Patent Trial and Appeal Board (PTAB) was using the wrong definition for what constitutes a covered business method (CBM) patent.

A covered business method patent is defined as a patent that claims a method for performing data processing or other operations used in the practice, administration, or management of a financial product or service. Specifically excluded from the definition of a covered business method patents are those that relate to technological inventions. See 37 C.F.R. 42.301(a). To determine whether a patent is for a technological invention, the PTAB is supposed to consider whether the claimed subject matter recites a technological feature that is novel and unobvious over the prior art, and solves a technical problem using a technical solution. See 37 C.F.R. 42.301(b). Nevertheless, the PTAB had been finding patents to be CBM patents when they covered matter incidental to a financial activity or complementary to a financial activity. For more see Federal Circuit slams PTAB.

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Patent Office gives examiners guidance in light of Enfish

Recently, the United States Patent and Trademark Office (USPTO) sent a memo to the Examining Corps with information and instructions relating to the recent ruling in Enfish, LLC v. Microsoft Corp. by the United States Court of Appeals by the Federal Circuit. In Enfish, the Federal Circuit ruled that the software patent claims at issue were not abstract and were patent eligible. This marked the first time in 18 months, since the Court’s ruling in DDR Holdings in December 2014, that the Federal Circuit has found software patent claims to be patent eligible.

The USPTO memo was authored by Robert Bahr, who is Deputy Commissioner for Patent Examination Policy. As you would expect, it accurately explains the importance of the Federal Circuit ruling in Enfish. Bahr tells examiners that, based on the Federal Circuit ruling, they “may determine that a claim directed to improvements in computer-related technology is not directed to an abstract idea under Step 2A of the subject matter eligibility examination guidelines (and is thus patent eligible), without the need to analyze the additional elements under Step 2B.” (emphasis in the original) Bahr goes on to tell examiners that a claim that is “directed to an improvement to computer-related technology (e.g., computer functionality) is likely not similar to claims that have been previously identified as abstract by the courts.”

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Federal Circuit finds data storage software claims patent eligible

Several weeks ago, the United States Court of Appeals for the Federal Circuit shook up the patent world with a somewhat unexpected gift for patent owners, particularly patent owners and applicants seeking software patents. The Court issued an important decision on software patent eligibility in Enfish LLC v. Microsoft.

The opinion by Judge Hughes, who was joined by Judge Moore and Judge Taranto, doubles the total of Federal Circuit decisions where claims in a software patent were deemed to be patent eligible because they are not abstract. In other words, DDR Holdings is no longer the only point of hope for innovators and patent owners in the software space.

This case stared when Enfish sued Microsoft for patent infringement. The patents at issue were U.S. Patent No. 6,151,604 and U.S. Patent No. 6,163,775, both issued in late 2000 and both claiming priority to the same application filed in March 1995. The ’604 and ’775 patents are directed to an innovative logical model for a computer database. A logical model is a model of data for a computer database explaining how the various elements of information are related to one another. Contrary to conventional logical models, the patented logical model includes all data entities in a single table, with column definitions provided by rows in that same table. The patents describe this as the “self-referential” property of the database.

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