§ 112 Enablement and Written Description in Post-Grant Review

When are written description and enablement requirements of 35 U.S.C. § 112 met, and what is a Petitioner’s burden of showing those requirements are not met in a PTAB proceeding? In Instrumentation Laboratory Co. v. Hemosonics… Read More

Practical Application Saves Software Claims in PGR

The Patent Trial and Appeal Board recently upheld eligibility of claims in a post-grant review, relying on the USPTO’s 2019 Patent Subject Matter Eligibility Guidance (but writing just before the October 2019 update to the USPTO… 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

Details Matter for Patent-Eligibility (and Other Bases for Patent Validity)

An important lesson for patent drafting – disclose and claim as much detail as you can about how the invention works, as opposed to simply what it does – falls out of a Federal Circuit panel’s split decision holding patent-i… 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

Indefiniteness Challenges Hinge On Textual Support

Whether a court holds a patent claim indefinite under 35 U.S.C § 112 can depend on textual support in the body of the claim or in the patent specification. In Luminati Networks, Ltd. v. UAB Tesonet, no. 2:18-cv-299 (E.D. Tex. Aug… 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

Claim term “Processor” does not invoke MPF Construction

In a tentative ruling, a court held the claim term “processor” did not invoke means-plus-function construction and was not governed by 35 U.S.C. §112¶6. Realtime Adaptive Streaming LLC v. Adobe Systems Inc., No. cv 18-9344-G… 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

Conditional Dependent Claim Lacking Mutual Exclusivity is Indefinite

The Central District of California recently held a dependent patent claim indefinite for failing to “specify a further limitation of the subject matter claimed” under 35 U.S.C. § 112. BlackBerry Limited v. Facebook, Inc. et a… Read More

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PTAB Practice: Recent Developments in Estoppel
November 21, 2019 at 12:00 pm EST
There are a wide range of estoppel issues that may be triggered under the America Invents Act (AIA) as a result of proceedings before the Patent Trial and Appeal Board (PTAB).  These estoppel issues complicate decision making in pursuing parallel pr…Register

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