Katherine Moggridge

Called to the bar 2012 Junior

Practice Areas

Katherine was Chambers & Partners IP/IT Junior of the Year for 2022.

She practices in all areas of Intellectual Property law, including patents, trade marks, passing off, copyright, confidential information, registered designs, design right, and contractual disputes involving intellectual property or technical subject matter.

Recent Cases

Merck Sharp & Dohme Ltd v Wyeth LLC [2020] EWHC 2636 (Pat): patent validity and infringement action; vaccine patent
Neurim & Anor v Generics UK Ltd [2020] EWHC 1362 (Pat): application for interim injunction in patent validity and infringement action; expedited trial to be heard November 2020
Conversant v Apple: telecoms patent; infringement; validity. Trial adjourned from April 2020 to January 2021
Liqwd Inc v L’Oreal [2019] EWCA Civ 1943: patent appeal; Re L principle considered; first instance decision upheld

Accord v Allergan; Allergan v Aspire (joined actions) [2019] EWHC 1085 (Pat): pharmaceutical patents; obviousness; sufficiency
E. Mishan & Sons (t/a Emson) v Hozelock [2019] EWHC 991: mechanical patents; validity (obviousness and prior use); infringement (including by equivalence)
Samsung Bioepis/Biogen v Fresenius (settled shortly before trial in 2019): pharmaceuticals; biosimilars; s.64 defence, validity
Actavis Group PTC EHF v Icos Corp [2019] UKSC 15: sole junior in Supreme Court patent appeal
Liqwd Inc v L’Oreal [2018] EWHC 1394: patent relating to hair care and bleaching; prior use; construction; validity; infringement
Generics (UK) Ltd v Yeda [2017] EWHC 708 (Pat): pharmaceutical patent; validity
Actavis Group PTC EHF v ICOS Corp [2017] EWCA Civ 1671: pharmaceuticals (formulation and dosage regimens); validity; infringement (appeal)
Fujifilm Kyowa Kirin Biologics Co Ltd v Abbvie Biotechnology Ltd [2017] EWHC 395 (Pat): pharmaceuticals; obviousness; novelty; priority; declaratory relief
Liqwd Inc v L’Oreal (UK) Ltd [2017] EWHC 679 (Pat): costs; disclosure; prior use
Fujifilm Kyowa Kirin Biologics Co Ltd v Abbvie Biotechnology Ltd [2016] EWHC 3383: abuse of process; summary judgment/strike out; declaratory relief
Actavis & Othrs v ICOS Corp [2016] EWHC 1955 (Pat): pharmaceuticals (formulation and dosage regimens); validity; infringement
Teva UK Ltd v ICOS Corp [2016] EWHC 1259 (Pat): claim construction, disclosure (provision of samples)
Actavis UK Ltd v Eli Lilly & Co [2016] EWHC 234 (Pat): chemotherapy drugs; declarations of non-infringement
Blue Gentian LLC & Anor v Tristar Products (UK) Ltd & Anor [2015] EWCA Civ 746: Court of Appeal; garden water hose patents
Generics (UK) Ltd (t/a Mylan) v Warner-Lambert Company LLC [2015] EWHC 2548 (Pat): second medical use patents; pharmaceuticals
Warner-Lambert v Sandoz: ex parte interim relief; second medical use patent infringement
Warner-Lambert v Sandoz & Lloyds: ex parte interim relief; second medical use patent dispute
Warner-Lambert v Sandoz & Lloyds [2015] EWHC 3153 (Pat): inter partes hearing, second medical use patents

Trade Marks and Passing off
Manchester United v SEGA: ongoing trade mark infringement and passing off action, trial to be heard in January 2022
JUUL v QuickJuul/Xuul [2019] EWHC 368 (Ch): trade mark infringement and passing off; counterfeit goods; ex parte Anton Piller relief; ex parte interim relief including injunctive relief; summary judgment
Total Ltd v YouView TV Ltd [2014] EWHC 1963: trade mark infringement and validity, passing off
Evegate Publishing Ltd v Newsquest Media (Southern) Ltd [2013] EWHC 1975 (Ch): trade mark infringement and validity, passing off
The Entertainer (Amersham) Ltd v The Entertainer FZ LLC: trade mark infringement and validity, passing off
Easygroup IP Licensing Limited “EASYPIZZA”: grounds of appeal to the Board of Appeal
• SIGMA SQUAWK (BL O/115/15): UKIPO, opposition hearing
• AQUANOVA (BL O/572/15 and O/151/16): UKIPO, opposition hearing
• HAMILTON & INCHES (BL O/090/17): UKIPO, opposition hearing

Other IP cases
Corbiere Ltd v Xu: ex parte interim relief, misuse of confidential information
Vivid Arts Ltd v Tom Chambers Ltd: unregistered design infringement, copyright infringement

Professional Memberships

Intellectual Property Bar Association; Chancery Bar Association.


  • 2012-2013: 12-month pupillage at Three New Square, to Tom Hinchliffe, Simon Malynicz, Tom Mitcheson and Geoff Pritchard, covering all aspects of Intellectual Property law
  • 2011-2012: Bar Professional Training Course, BPP Law School, Holborn
  • 2010-2011: Graduate Diploma in Law, City Law School
  • 2007-2010: BSc Biochemistry, Kings College London
  • 2008-2009: Biochemistry (Biophysical Chemistry), Berkeley, University of California
  • Mary MacMurray Scholar, Lincoln’s Inn
  • Academic Scholar and Academic Exhibitioner, Oundle School

Called to the Bar 2012


Co-editor of Terrell on Patents, 18th and 19th Editions.

Katherine was selected as one of 20 Trailblazers in World IP Review’s Influential Women in IP in 2019.

Privacy Notice

Katherine Moggridge’s privacy notice can be found here

“Katherine is excellent in every way. She provides excellent and sensible advice, and her advocacy and written work are very impressive. She really does hold her own before the bench. She is clever, personable and responsive, which is why clients and solicitors love her.”

“Katherine Moggridge is ultra smart, quick, and succinct.”

“Katherine Moggridge has phenomenal client service skills, and substantive knowledge. She is very user-friendly. Katherine is an absolute pleasure to work with.”

“She is very switched-on and gets to the heart of the technical detail very quickly. She is also approachable and friendly, a pleasure to work with.”

Chambers & Partners, 2024

‘Katherine is an extremely bright and enthusiastic junior barrister who understands the best way of working with a team. She has fantastic experience and is rightly considered to be one of the leading junior patent barristers.’

Legal 500, 2024

“Katherine Moggridge is one of the smartest people I’ve met. She’s really technical and is a real star.”

“Katherine Moggridge is performing beyond her call. She’s a real high flyer who works very hard, and is very enthused about the cases.”

“She’s very hard-working and has a broad practice. She also has very good technical knowledge, as a biochemist by training.”

Chambers & Partners, 2023

One of the best IP juniors at the Bar at the moment – commercial, good judgement and very hardworking.

Legal 500, 2023

‘ Katherine is a fantastically able junior. She is extremely clever, and harnesses her considerable intellect to a straightforward and user-friendly manner that makes her a pleasure to instruct. ’

Legal 500, 2022

“It is an absolute joy to work with Katherine Moggridge. She is unique in her talent to tackle complex material and skilfully drive cases forward, while being one of the most client-friendly barristers at the patent Bar.”

Chambers & Partners, 2022

“She will fight hard for the client. She is a good advocate, her style is clear and she also anticipates the judges well.”

Chambers & Partners, 2022

“She is a fantastic barrister and is real star. She has great judgement and is persuasive.”

Chambers & Partners, 2022

“She is extremely user-friendly and is able to think about issues in a deeply intellectual way.” “A highly dedicated barrister who comes up with good strategies. Her scientific background is really helpful.” “She is technically excellent and works well in the barrister-solicitor team.”

Chambers & Partners, 2021

An excellent junior who gets stuck into the case, including the technical aspects, and provides excellent all-round support to the QC and wider team.

Legal 500, 2021

Alongside technical excellence, she is a people person and good fun to work with. Undoubtedly a star for the future.’”

Legal 500, 2018

“An up-and-coming junior recommended for her judgment, commerciality and her fast turnaround times. She is regularly instructed in life sciences patent disputes, including those concerning infringement and invalidation actions.”

“She is very diligent, very hard-working and a good team player.” “She is very bright, easy to work with, very commercially aware and proactive.”

Chambers & Partners 2018

She brings a high dose of “can-do” attitude to a case, and punches above her weight for a barrister of her call.’

Legal 500, 2017