Mr Mrs Miss Ms Dr Other

Dr. Rer. Nat., Dipl.-Chem.


Munich Office Heidelberg Office Salzburg Office


Telephone. +49 (0)89 1259 96029
Email. [email protected]


Dominique Trösch is a trained chemist having done scientific research in metal organic chemistry financed by the DAAD and the British Council. He is active in IP since 2000 and took part in multiple patent invalidation proceedings in front of the European Patent Office (e.g. EP1175904/alendronate; T 493/09 of 27 February 2013, T284/11 of 11 February 2014, ... ) and German Courts (e.g. lead sentence decision repaglinide - BGH XZR 128/09 of 11 November 2014; BPatG 3 Ni 36/04 of 27 June 2006 - SPC/alendronate; BPatG 3 Ni 37/07 of 11 November 2008 - cetirizine). Recently, he was involved with referral G 2/21 to the EPO's Enlarged Board of Appeal (G 2/21 of 23 March 2023 - reliance on a purported technical effect for inventive step (plausibility)) - often in cases also relating litigation. Besides pharmaceuticals and agrochemicals, he also has experience with other technical fields (material sciences, steel, physical chemistry, food chemistry). Experience from the aforementioned cases proves helpful drafting opinions or for conducting due diligence work.

He fluently speaks, reads and listens to German, English and French- using German and English in written procedures.

Since recently, he is also a representative in front of the UPC.


Patent Attorney


Trade Mark Attorney





Dr. rer. nat. (Julius-Maximilians-Universität Würzburg)


President of European Patent Expert’s Exchange (EuPEX) e.V. – a  registered association under German Law meeting  monthly to discuss recent EPO Offical Journals and Technical Boards of Appeal Case Law;

occassionally partaking in AIPPI questionnaires;

member of the following groups, associations and chambers:  PAK, EPI, FICPI, AIPPI, EuPEX, LES Germany, GRUR, GDCh (German Chemists Association) – Fachgruppe gewerblicher Rechtsschutz), BDPA.

Related News

Event - 8th, 22nd February 2024

Dresden & Salzburg Seminar: Basics of trade mark protection - National and European perspectives

HGF is pleased to invite you to our upcoming German speaking seminar on “Fundamentals of trade mark protection: National and European Perspectives” in Salzburg and Dresden. The seminar will cover …

Event details
Event - 18th May - 22nd April 2024

INTA 2024 Annual Meeting Live

The HGF European team will be attending the INTA Annual Meeting Live, which will take place on 18th-22nd May 2024 in Atlanta, Georgia. The conference will connect some of the …

Event details

EPO Annual Fee Increases

The European Patent Office (EPO) has announced that revised Official Fees will apply to payments made on or after Monday 1st April 2024. The majority of fees will increase by …

Read article
Event - 30th January 2024

CAR-TCR Summit, Europe 2024

HGF are proud Event Partners of CAR-TCR Europe, which is due to go ahead from 27th – 29th February at ExCeL, Royal Victoria Dock in London. This is the European hub …

Event details

How to Use IP Strategy to Tip the Odds in Your Favour

Porter’s Five Forces model [1] is just one example of a convenient model for exploring and understanding the forces at play in a competitive marketplace. Michael Porter’s Five Forces model …

Read article

First CRISPR therapy approved for use in the UK

In an unprecedented move, the MHRA has approved a CRISPR gene editing therapy ‘Casgevy’  for the treatment of sickle cell disease and beta-thalassaemia in patients with recurrent vaso-occlusive crises. The Casgevy …

Read article
Event - 8th, 22nd February 2024

Dresden & Salzburg Seminar: Invention and patent searches in public databases

HGF is pleased to invite you to our upcoming German-language seminar on “Invention and patent searches in public databases” in Salzburg and Dresden. The seminar will showcase how public databases …

Event details
Event - 29th November 2023

HGF & Shiga Webinar Recording: Medical devices and bioinformatics / AI diagnostic feedback - law and practice in Europe and Japan

“Medical devices and bioinformatics / AI diagnostic feedback – law and practice in Europe and Japan” The EPC does not allow ‘medical use’ claims for medial devices. So how do …

Event details

Let's talk

If you would like to discuss how HGF could help you, contact one of our IP specialists.