Our Team

Member Firms

Passionate about intellectual property matters, we dedicate our legal expertise, individual skills in various fields of technology, teamwork and experience to the successful protection and safeguarding of your IP rights.

  • +32 4 230 54 00
  • +32 4 222 90 61
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  • PRONOVEM Liège
  • Parc d'Affaires Zénobe Gramme - Bâtiment K
    Square des Conduites d'Eau 1-2
    B-4020 Liège
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Marc Lerho
European, Belgian & Luxembourg Patent Attorney

Marc has a versatile educational background as he graduated in physics (master) and biophysical chemistry (PhD) at the University of Liège.
Afterwards he worked in the development of electronic control devices for the industry and in the manufacturing of glazing products for the building sector (organization, quality, management).
In his late thirties he decided to capitalize on his acquired industrial experience and to venture into management of intellectual property rights (IPR). He joined pronovem Group in the office of Liège.
Marc has extended and senior expertise in the following areas of intellectual property: prior art search analysis, patent drafting, prosecution, opposition and enforcement (national, European and international PCT applications), patentability, invalidity and infringement opinions, freedom-to-operate opinions, support to attorneys-at-law in judiciary procedures, support to licensing negotiations, IP strategy implementation, portfolio management, public sensitization and information about IP.


European Patent Attorney
Belgian Patent Attorney
Luxembourg Patent Attorney


French, English, German

Main Technical and Scientific areas

Mechanical and electrical engineering, particularly medical devices and diagnostic tools, instrumentation and control devices ; physics, particularly electronics and optics ; chemistry and materials ; industrial installations and methods.