Neil Campbell was instrumental in the G1/23 decision overturning a 30-year European patent precedent.
18 July 2025NewsPatentsMarisa Woutersen

‘Written submissions cannot be underestimated’: How G1/23 changed European prior art rules

The lawyer behind a landmark ruling that reshaped prior art rules reveals how the decision will impact patent-opposition proceedings, influence trade secrets, and why strong legal arguments should never be lost in a “sea of weaker ones”, finds Marisa Woutersen.

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Patents
28 April 2025   As the EPO weighs in on a key case that could redraw the boundaries of prior art, Marisa Woutersen speaks to party counsel Neil Campbell of Dehns about its potential long-term impact.