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Another case of catastrophic comma loss (T 1473/19): Interpreting the claims in view of the description

  • 28th February 2023
In a timely reminder of the European Patent Office’s stringent approach, the Board of Appeal recently revoked a patent for added matter due to nothing more than two missing commas in a claim.

Defining a medical device as a product-by-process (T 1869/19)

  • 18th October 2022
What are the limitations of product-by-process claims for medical devices?

Clinical trials: expectation of success, failure or mere hope?

  • 11th October 2022
Sitting in recent project meetings listening to the clinical team discuss possible signals from an oncology clinical trial, I was struck by the disconnect between the real life complexity and uncertainty versus the view taken by the EPO (and other patent offices) that the existence of a clinical trial protocol can give the skilled person…

Boards of Appeal back rejection of special criteria for the novelty of purity inventions, but the Guidelines remain out of step (T 0043/18)

  • 8th September 2022
The EPO clarifies the criteria for the patentability of inventions based on the achievement of a higher chemical purity.

Artificial intelligence is not breaking patent law: EPO publishes DABUS decision (J 8/20)

  • 16th August 2022
This post is based on a previous article on IPKat. The EPO Board of Appeal has published its full decision on the question of whether a machine can be an inventor (J 8/20). The Board of Appeal had previously announced its decision to refuse two European patent applications naming an algorithm (“DABUS”) as the sole inventor…

Patenting Antibodies: The epitope claim is dead, long live the epitope claim

  • 19th December 2021
While US case law signals the “death” of the broad antibody epitope claim, recent European decisions suggest this patent format is still very much alive at the EPO.

When does pre-clinical data plausibly support a therapeutic effect? (T 966/18)

  • 23rd August 2021
The timing of a patent filing is critical to the patent’s validity. The earlier a patent is filed, the lower the risk of disclosures before the priority date destroying novelty and inventive step. Yet, the later a patent application is filed, the more time there is to obtain data and satisfy the requirement that the…

Reference to a hybridoma does not limit a product-by-process antibody claim (T 0032/17)

  • 18th July 2021
At the EPO you can define a antibody by reference to a hybridoma. But what if you deposited the hybridoma before you filed the patent?

Boeing’s comma drama: Commas and taking the description into account when construing a claim (T 1127/16)

  • 30th May 2021
It is not only the choice of words that matter in patent claim interpretation. As the recent decision in T 1127/16 shows, grammar can be similarly important.  

Does the requirement for a “technical contribution” in a novel selection survive? (if selecting from convergent lists) (T 1621/16)

  • 8th April 2019
The EPO’s strict patent amendment rules, particularly for combining features from “convergent lists,” were recently clarified by a Board of Appeal decision (T 1621/16). This decision impacts both amendment support and the novelty assessment of selection inventions.

Substance or device – a distinction without a difference?

  • 18th January 2019
There are important differences in the types of patent protection available for medical devices versus pharmaceuticals, but what happens if your product straddles the boundary between device and drug?

Purity can be unconventional, a new position for the EPO boards of appeal (T 1085/13)

  • 8th March 2018
The EPO suggest a new test for the novelty of inventions based on increased chemical purity.
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