Software Patent

June 20, 2022
Photograph of three baseballs on the grass, representing three strikes.

Three Strikes: Federal Court Rejects CIPO’s Approach to Software Patent Eligibility

2022 FC 923: For the third time since 2011, CIPO’s approach to software patent eligibility has been struck down by the Federal Court.
February 24, 2022
Photograph of a computer user typing on a laptop

Courts Must Consider Patent Examiner’s Interpretation of Claims

The US CAFC ruled that an examiner is a "person of ordinary skill in the art" and is owed an appropriate level of deference.
November 15, 2021
Photo of computer screen showing a code editor.

Landmark Graphics Benefits Again From PAB’s Post-Choueifaty Approach

2021 CACP 42: Cementing its post-Choueifaty approach to patentable subject-matter in Canada, the PAB found all claimed elements to be essential in the computer-implemented invention.
November 2, 2021
Photo of a hand holding a credit card above a laptop keyboard.

Apple and Visa Persuade Federal Circuit to Invalidate Patents for Secure-Payment

Fed. Cir. No. 2020-2044: The Federal Circuit found that the patents were directed to an abstract idea, with no additional elements to transform them into patentable subject-matter.
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.
June 7, 2021
Close up view of a green circuit board for a computer

PAB Allows Two Software Patents, Revealing Post-Choueifaty Approach

2021 CACP 9, 2021 CACP 12: In two recent decisions involving software patents, the Patent Appeal Board found the inventions to be directed to patentable subject-matter
February 16, 2021
Close-up photograph of server with multiple ethernet cords plugged in

Patent Appeal Board Rules Choueifaty Patent Application to Be Patentable

PAB 1556: Canada’s Patent Appeal Board reconsidered Mr. Choueifaty’s patent application for a computer-implemented method of managing portfolio assets.
November 2, 2020
Photograph of eyeglasses focusing on a computer screen displaying software code.

After Choueifaty: A New Test for Examining Software Inventions in Canada

Andrew Currier and Stephen Perry review best practices for drafting software patents to global standards and propose a new test for examining software inventions in Canada.
September 23, 2020
Lines of programming code on a computer screen.

Federal Court Rejects CIPO’s “Problem-Solution” Approach to Claim Construction

2020 FC 837: A recent decision spells the end to the problem-solution approach, which has long been used to block patent applications for software.
August 10, 2020
Macro photograph of a computer keyboard with black keys.

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.