Knobbe Martens Recognized by Am Law, Law360 for $634 Million Patent Infringement Win for Masimo
A team from Knobbe Martens, along with Sullivan and Cromwell, was honored as lead runner up in Am Law’s “Litigator of the Week” contest for securing a successful verdict on...
Knobbe Martens Guides Masimo to $634M Win Against Apple in Patent Infringement Case
IRVINE, Calif., November 17, 2025 – A team from Knobbe Martens led medical device pioneer Masimo (NASDAQ: MASI) to a victory over Apple in a dispute involving Masimo’s patented heart...
Litigation Update | September 2025
Not Clear Enough: The TTAB’s Standard for the Registrability of All-Purpose Word Marks Lacked Clarity Justin J. Gillett & Susan E. Pratt, Ph.D. IN RE: ERIK BRUNETTI Before Lourie, Dyk, and Reyna. Appeal from...
Words Matter: “Identical” Does Not Mean “Identical to a Portion Of”
LABORATORY CORPORATION OF AMERICA HOLDINGS v. QIAGEN SCIENCES LLC Before Lourie, Dyk, and Cunningham. Appeal from the United States District Court for the District of Delaware. Summary: The Federal Circuit reversed...
Litigation Update | August 2025
An Examiner’s Allowance Does Not Create an “Especially Weighty” Presumption of Written-Description Support Justin J. Gillett & Alex Martin del Campo MONDIS TECHNOLOGY LTD., HITACHI MAXELL, LTD., NKA MAXELL HOLDINGS, LTD., MAXELL,...
Dozens of Knobbe Martens Lawyers Featured in “Best Lawyers” 2026 Guide
IRVINE, Calif., August 21, 2025 – Knobbe Martens is pleased to share that dozens of the firm’s lawyers, representing a range of practice areas and offices across the country, have...
Sunkist Squeezes Out a Win and Kisses Kist Goodbye!
SUNKIST GROWERS, INC. v. INTRASTATE DISTRIBUTORS, INC. Before Prost, Taranto, and Stark. Appeal from the Trademark Trial and Appeal Board. Summary: The TTAB incorrectly found that similar trademarks created distinct commercial...
Patent Claims Applying Machine Learning Methods to New Environment Do Not Withstand § 101 Scrutiny
RECENTIVE ANALYTICS, INC. v. FOX CORP. Before Dyk, Prost, and Goldberg. Appeal from the United States District Court for the District of Delaware. Summary: The Federal Circuit found that claims applying established...
Equitable Estoppel: Misleading Silence Not Enough Unless It Was Relied on and Caused Prejudice
FRAUNHOFER-GESELLSCHAFT v. SIRIUS XM RADIO INC. Before Lourie, Dyk, and Reyna. Appeal from the United States District Court for the District of Delaware. Summary: The defense of equitable estoppel requires showing...
The Board Must Provide Reasoned Explanation When Discarding Material, Unrebutted Evidence
CQV CO., LTD. v. MERCK PATENT GMBH Before Cunningham, Chen, and Mayer. Appeal from the Patent Trial and Appeal Board. Summary: The Board erred by failing to explain why it discarded...
Where Method Claim Steps Are Connected by “And,” a Covered Method Must Perform Each Step
SIERRA WIRELESS, ULC V. SISVEL S.P.A. Before Moore, Schall, and Taranto. Appeal from the Patent Trial and Appeal Board. Summary: The Board erred by finding method-claim steps connected by “and” to...
Every Word Counts: Specification Naming Conventions Can Limit Claim Scope
HD SILICON SOLUTIONS LLC v. MICROCHIP TECHNOLOGY INC. Before: Lourie, Stoll, and Cunningham. Appeal from the Patent Trial and Appeal Board. Summary: A patent’s specification established a naming convention that applied...
A Patent Must Describe What Is Claimed, Not What Infringes
NOVARTIS PHARMACEUTICALS CORPORATION v. TORRENT PHARMA INC. Before Lourie, Prost, and Reyna. Appeal from the U.S. District Court for the District of Delaware. Summary: A patent was not invalid for lack...
“Quotation” Letter Found to Constitute Offer Invalidating Patents
CROWN PACKAGING TECHNOLOGY, INC. v. BELVAC PRODUCTION MACHINERY, INC. Before Dyk, Hughes, and Cunningham. Appeal from the United States District Court for the Western District of Virginia. Summary: An offer for...
Knobbe Martens Achieves Standout Ranking at 2024 Financial Times Innovative Lawyers North America Awards
IRVINE, Calif., December 11, 2024 – Knobbe Martens is honored to announce that the firm received a “Standout” recognition, the highest possible tier, in the Healthcare & Life Sciences category...
Resolving Claim Construction Dispute at 12(b)(6) Stage May Be Error if Specification Indicates Claim Term Does Not Have its Plain Meaning
UTTO INC. v. METROTECH CORP. Before Prost, Taranto, and Hughes. Appeal from the United States District Court for the Northern District of California. Summary: The district court erred in construing...
In Reuters Westlaw Article, Douglas Wentzel and Joshua Martineau Offer Overview of § 325(d) Petition Practice in Ex Parte Reexamination
Writing in Reuters Westlaw Today, attorneys Douglas Wentzel and Joshua Martineau offer an overview of § 325(d) petition practice, an important but often overlooked opportunity for patent owners to request that the USPTO discretionarily deny...
Knobbe Martens, Over a Dozen Attorneys Recognized in Managing IP 2024 IP STARS Guide
IRVINE, Calif., October 10, 2024 – Knobbe Martens is proud to share that the firm and its partners have once again been recognized for outstanding intellectual property work by Managing...
Combining Abstract Ideas Does Not Make Them Less Abstract
BROADBAND ITV, INC. v. AMAZON.COM, INC.
Before Dyk, Reyna, and Stark. Appeal from the United States District Court for the Western District of Texas.
Summary: When assessing patent eligibility under 35 U.S.C. § 101, combining two abstract ideas does not make either less abstract, and conventionality can be analyzed at both steps of the Alice test.
An Expert Witness Need Not Have Been a Posita at the Time of the Invention
OSSEO IMAGING, LLC v. PLANMECA USA INC.
Before Dyk, Clevenger, and Stoll. Appeal from the United States District Court for the District of Delaware.
Summary: An expert witness can testify from the perspective of a POSITA at the time of the invention even if they did not qualify as a POSITA until later.
In IP Watchdog Article, Knobbe Martens Litigation Partners Offer Tips for Patent Prosecutors
In an article published in IP Watchdog, Knobbe Martens litigation partners Christy Lea, Douglas Wentzel, Brian Claassen and Daniel Kiang offer practical tips to patent prosecutors on ways to enhance...
