Hosea Haag
AMPERSAND Partnerschaft von Rechtsanwälten mbB.
AMPERSAND Partnerschaft von Rechtsanwälten mbB.
Client SatisfactionAMPERSAND Partnerschaft von Rechtsanwälten mbB. acts with a focus on the telecommunications sector, but also advises on matters in the automotive and pharmaceutical industries. Hosea Haag leads the practice and is frequently instructed by US companies, particularly non-practicing entities (NPEs). Jonathan Konietz is dedicated to contentious issues relating to SEP and FRAND and further focuses on the management of licensing, research and development contracts. Philipp Neels (life sciences, telecommunications, mechanical engineering) joined Eisenführ Speiser in July 2023.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
'Clever minds, extremely creative and a super pleasant and calm way of working together.'
'Hosea Haag: Clever, creative, strategic, to the point, extremely perceptive, knows exactly what to do, tactician, immense experience, good client handling.'
- 'Jonathan Konietz: Clever, extremely creative, strategic, to the point, extremely perceptive, tactician.'
'Good size law firm, very good cooperation with both senior and junior partners. In addition to legal issues, the team also deals extremely intensively with technical issues of patent disputes.'
'Jonathan Konietz has excellent legal and technical expertise. Very committed and competent.'
'Ampersand's proactive and strategic approach to patent litigation is nothing short of impressive. Their ability to formulate strong legal arguments combined with meticulous attention clearly stands out. Their ability to identify and overcome potential challenges early on is equally remarkable.'
- 'Ampersand demonstrates tireless dedication and their resolute commitment is evident in every step they take.'
- 'Hosea Haag has deep legal and technical knowledge and is adept at handling complex, multi-jurisdictional matters while being extremely approachable and straightforward.'
Key clients
- Accord Healthcare Ltd.
- ADMEDES GmbH
- Arigna Technology Ltd.
- Conversant Wireless Licensing S.à.r.l.
- DT Swiss AG
- Ewikon
- Human Care Nederland B.V.
- IDnow GmbH
- ImberaTek LLC
- InstrAction Siltectra uVm
- INTAS Pharmaceuticals
- Intent IQ
- MTU
- Onebutton
- Pantech Corporation
- Quiss Qualitäts-Inspektionssysteme und Service GmbH
- Schülke & Mayr GmbH
- Tautropfen Naturkosmetik
- Uniloc Deutschland GmbH
- Unwired Planet
- Valutis GmbH
- Westfälische Wilhelms-Universität Münster, Universitätsklinikum Münster
- WFI Warmflascheninnovation UG
- Withers & Rogers LLP
- Wonderland Nurserygoods Co. Ltd.
- WSOU Investments LLC
Work highlights
- Represented WSOU Investments LLC in more than 20 patent infringement cases.
- Represented Pantech Corporation in seven infringement proceedings and three disposition proceedings relating to FRAND and SEP patents in the field of telecommunications.
- Represented Hirschvogel in several lawsuits between competitors.
Lawyers
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Practice head
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Hosea Haag