Patent Infringement

Case summaries and articles about patent infringement.

November 16, 2023
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Will the Third Time Be the Charm in This Design Patent Saga?

Fed. Cir. No. 2021-2299, 2021-2338: This is the second time the Court of Appeals for the Federal Circuit has reversed a finding of infringement and sent the design patent back to lower courts.
May 2, 2023
Photograph of clothespins hanging upside down on a clothesline, the clothespins resemble the letter "A".

The Federal Circuit Interprets the Meaning of “A” in Patent Claims

Fed. Cir. No. 2021-2320, 2021-2376: Typically patent drafters omit phrases like “at least one” from patent claims to improve readability, but a recent court decision may reverse the trend.
January 20, 2023
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Past Conduct Deemed Relevant to Infringement in ANDA Proceedings

CAFC No. 22-1595: In this precedential decision on induced infringement, the Federal Circuit clarified that “past conduct is relevant to what will happen in the future”.
November 29, 2022
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Canada’s Highest Court Upholds $644M Award for Patent Infringement

2022 SCC 43: The Supreme Court of Canada handed down a decision that awards Dow Chemical $644 million—the largest monetary offering in a Canadian patent lawsuit.
June 30, 2022
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Inventor Fails to Extract a Win on Appeal Against Oil Producer MEG

2022 FCA 118: The appeal court saw no reason to interfere with a trial court decision that favoured MEG Energy in its ongoing patent dispute with inventor Jason Swist.
February 3, 2022
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Google’s AdWords Defeats Competitor’s Patent Infringement Claim

Canada's Federal Court dismissed allegations by Paid Search Engine that Google infringed a patent for optimizing paid search engines.
January 27, 2022
A photo of a pumpjack for mining oil in the Canadian prairies.

Prior Use Defence Argued by Mining Supplier in Patent Infringement Case

The prior use defence allows a business to continue activities that would otherwise be patent infringement, if the activities pre-date the filing date of the patent.
December 6, 2021
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Scope of Patent Agent Privilege Considered in FCC Decision

The Federal Court has limited the scope of patent agent privilege to communications directly related to the protection of patent rights.
October 5, 2021
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United States Court of Appeals Clarifies “Actual Notice” Under § 287

Fed. Cir. No. 19-2286: The actual notice requirement of § 287 is only satisfied when the recipient is informed of the identity of the patent and the allegedly infringing activity.
August 23, 2021
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And He Scores! Patent Infringement Suit Against CCM Hockey Dismissed

2021 FCA 166: The Federal Court of Appeal's observations on the use of prosecution history demonstrate that courts continue to adapt to recent amendments to patent law.
July 7, 2021

CAFC Invalidates a Camera Patent, Blurring Lines in the Patent Eligibility Inquiry

Fed. Cir. No. 2020-1760: The CAFC sided with Apple and Samsung, finding a patent for an “improved” digital camera to be an abstract idea and not patent-eligible subject matter.
March 26, 2021
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Federal Court Applies Its Own Claim Construction to Infringement Case

2021 FC 85: The Federal Court upheld the validity of all claims, but found that PetroChina was not infringing Maoz Betser-Zilevitch's patent for an SAGD.
February 1, 2021
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Federal Court of Appeal Restricts Admissibility of Foreign Prosecution History

2021 FCA 7: The FCA narrowly interpreted section 53.1 of the Patent Act, refusing to look at a corresponding US application that was not named by number.
October 27, 2020
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FCA Upholds Largest Patent Infringement Award in Canadian History

2020 FCA 141: Court warns judges not to be "spooked" by the enormous sums that may be calculated in an accounting of profits for patent infringement.
September 10, 2020
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Identical Preambles: Limiting in One Patent, Not Another

Fed. Cir. 2019-1622: The CAFC found the same preamble created different limitations for different patents, limiting one patent but not the other.
August 10, 2020
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Infringer Uses Marking Requirement to Escape Pre-Suit Damages

Fed. Cir. 2019-2041 - The CAFC held that Packet Intelligence was precluded from claiming $3.5M in pre-suit damages because the marking requirement was not met.
June 18, 2020
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Federal Court Clarifies the Admissibility of Patent Prosecution History

In a patent infringement case between two major ice skate manufacturers, the Federal Court clarified s. 53.1 and the admissibility of prosecution history.
April 16, 2020
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Prima Facie Obviousness Established From Similar Compounds, Overlapping pH

Fed. Cir. 2018-2097 — The CAFC ruled that Valeant's patent for Relistor(R) is prima facie obvious based on similar compounds with overlapping pH ranges.
March 9, 2020
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Contested Remicade Patent Will Head Back to Court in June

2020 FCA 30; 2020 FCA 31 – Janssen and Celltrion will return to court in June after the FCA overturned a lower court decision regarding a Remicade patent.
December 19, 2019

Fuel Tank Patents Limited by Patentee’s “Special Definition”

Fed. Cir. 2018-2087 - Plastic Omnium was unsuccessful in proving patent infringement because the patents used a "special definition" of the word "parison".