Medical devices

Alcon and Kirkland invalidate two AMO eye surgery patents

In a dispute spanning the UK, the US and Germany, Alcon has recorded its first UK success against AMO over patents for eye cataract surgery technology. The country's High Court has declared two AMO patents invalid, meaning Alcon can continue to sell its products on the UK market.

4 May 2022 by Konstanze Richter

Alcon, AMO Medical device manufacturer Alcon has succeeded in revoking two AMO patents, which cover technology pertaining to eye cataracts surgery, at the UK High Court ©romaset/ADOBE STOCK

The current dispute between Alcon and AMO centres on EP 2 548 528 and EP 18 35 861, which are owned by the latter California-based Johnson & Johnson subsidiary. EP 528 is a divisional of EP 861, with their specifications being materially identical. Both patents protect a system comprising a laser and an imaging device for carrying out a surgical procedure on the eye, which aims to reduce the effect of cataracts.

The claim was initially brought by medical device manufacturer Alcon seeking revocation of EP 861 and later EP 528. The claimant alleged lack of inventive step and included various insufficiency allegations. AMO counterclaimed for infringement for both patents.

In August 2021, the European Patent Office maintained EP 861 in amended form. In the case of EP 528, opposition proceedings are still pending at the EPO. However, the UK High Court has now found both patents invalid, primarily for obviousness. However, the judgment states that if the court had not found the patents invalid for obviousness, the presiding judge would have nontheless found both patents invalid for insufficiency (case ID: HP-2020-000028).

Alcon wins in Germany

The ruling is part of a cross-border complex of proceedings concerning laser technology for ophthalmic surgery. Spanning Germany, the UK and the US, the dispute involves 20 patents from two patent families, owned by Johnson & Johnson companies. A further 13 patents from five Alcon patent families are also involved. All patents cover the US and Europe.

In Europe, the opponents are fighting over eight patents from different families. Four belong to Johnson & Johnson subsidiary AMO (EP 18 35 861, EP 25 48 528, EP 27 72 234 B1, EP 34 66 379 B1). Four are owned by Alcon (EP 29 26 780, EP 22 40 108, EP 25 79 827, EP 28 26 436). To date, the winning side has changed depending on the case.

However, in an initial decision in Germany, the Hamburg Regional Court found that AMO infringed Alcon’s patent EP 780 (case ID: 327O 321/20) and issued an injunction. The appeal against this decision is pending.

Ian Kirby

In another ruling on the merits of AMO’s EP 861, in February 2022 the Mannheim Regional Court (case ID: 7 O 70/20) found that Alcon infringed the patent. Alcon appealed the decision, while a parallel nullity action against the patent is pending.

The UK High Court decision is the first ruling by a civil court on the validity of the patents-in-suit. In addition to EP 861 and EP 528, Alcon has also challenged AMO’s patents EP 234 and EP 379 in the UK, with a trial expected in April 2023.

AMO relies on regulars

This is the first time that US firm Kirkland & Ellis has acted for Alcon, with the instruction coming through close contacts with in-house lawyers. The latter knew the Kirkland team from their time at Novartis, from which Alcon spun off in 2019. Kirkland has advised Novartis for years. The US firm is coordinating the cross-border proceedings in the US, UK and Germany. In Germany, a mixed team of Vossius & Partner together with patent attorneys from Wüsthoff & Wüsthoff represents Alcon.

Daniel Lim

AMO, like its parent company Johnson & Johnson, has relied on mixed firm Carpmaels & Ransford for years in filing and prosecution, as well as in EPO oppositions. The firm is also increasingly active in infringement cases for Johnson & Johnson and its subsidiaries. However, this is the first time that AMO has instructed Carpmaels in a litigation capacity.

In the US, AMO relies on a team from Latham & Watkins. The team, led by Washington partner Michael Morin, also coordinates the transatlantic proceedings and cooperates closely with Carpmaels partner Ian Kirby in the UK. He also works with Rosspat Osten Pross lawyers, as well as the patent attorneys at Hoffmann Eitle in Germany.

For Alcon
Three New Square (London): Thomas Hinchliffe, Kathryn Pickard, Jeremy Heald
Kirkland & Ellis (London): Nicola Dagg, Daniel Lim (partners); associates: Nadia Spiccia, Ashley Grant
Kirkland & Ellis (Washington): Gregg LoCascio, Jeannie Heffernan, Sean McEldowney, Noah Frank

For AMO
8 New Square (London): Michael Tappin, Henry Ward
Carpmaels & Ransford (London): Ian Kirby, John Brunner (patent attorney) (both partners); associates: Sarah Johnson, Aled Jones; Ben Chapman, Chris Tunstall (both patent attorneys)
Latham & Watkins (Washington): Michael Morin, Roger Chin
In-house, Johnson & Johnson (US): Denise DeFranco (Global Head IP Litigation)

UK High Court of England and Wales, London
James Mellor (presiding judge)