AMPERSAND Partnerschaft von Rechtsanwälten mbB.

Intellectual Property / Patent // Technical fields: telecommunications, electronics, mechanical engineering, medical devices, semiconductor technology

Hosea Haag is a partner at AMPERSAND. His professional focus is patent law.

He represents clients in patent infringement proceedings before all German courts of instance and advises national and international companies in all matters of patent law. He structures and manages both international litigation series and individual infringement actions. The technical fields he covers include telecommunications, electronics, mechanical engineering and medical devices.

The JUVE Handbook describes Hosea Haag as a "highly experienced and smart tactician", while Legal 500 describes his advice in "highly complex cases" as "meticulously and calmly" and highlights his "excellent knowledge of the views of the courts".

The law firm AMPERSAND Partnerschaft von Rechtsanwälten mbB was in charge of the "Comparative Guide Germany: Patent Litigation" published in October 2022, for which Hosea Haag was co-author.

1998 - 2002

Attorney-at-law at Coudert Brothers

2004 – 2009

Attorney-at-law at Bird & Bird

2009 – 2010

Attorney-at-law at Hammonds

2010 – 2011

Head of Patent Litigation at Eversheds

2012 – heute

Founder und Partner of AMPERSAND

German, English

VPP / GRUR / AIPPI / LES

1992 – 1998

First State Examination in Law, Friedrich-Alexander-Universität Erlangen Nürnberg

1999 – 2001

Second State Examination in Law , Assessor's Examination, Berlin Court of Appeal

2001 – 2003

Master of Laws (LL.M.) at the University of Exeter