Who Are the Best Patent Firms in Luxembourg? (2026)

IPRATE analysed 102 firms across 8,037 European (EPO) patent filings in Luxembourg; 21 firms met the evidence thresholds and are ranked below (tiers, highest first: Elite, Leading, Proven, Select). Based on official EUIPO, EPO and national IP office records. Ratings are never sold or sponsored.

Comparing patent firms in Luxembourg

This table compares European (EPO) filing records for the country shown. Start with the rating tier, then compare annual filing volume, outcomes and confidence on each firm profile. Compare like-for-like practices and periods: a high success rate on a small record is different evidence from the same rate across a large portfolio.

Compare the firm's technical subject areas and filing experience, then discuss drafting, prosecution and the jurisdictions you need. Use the published record to build a shortlist and confirm the fit with the firm. Filing outcomes describe the measured work; they do not establish litigation experience or predict the outcome of your case.

Rating methodology Source data and citation

#	Firm	City	Tier	Vol/yr	Success	Speed	Renewals
1	Kutsch, Bernd	Colmar-Berg	Elite	70.956522	72%	1076d	N/A
2	ARONOVA S.A.	Esch-sur-Alzette	Elite	9.904762	68%	2249d	N/A
3	OFFICE FREYLINGER S.A.	Strassen	Elite	80.181818	65%	1671d	N/A
4	Mellet, Valérie Martine	Esch-sur-Alzette	Elite	7.65	62%	1408d	N/A
5	Patent 42	Esch-sur-Alzette	Elite	13.333333	83%	1286d	N/A
6	Ipsilon Benelux	Luxembourg	Elite	76.863636	72%	1923d	N/A
7	Boncea, Oana-Laura	–	Leading	3.2	100%	1428d	N/A
8	DENNEMEYER & ASSOCIATES	Howald	Leading	34.565217	45%	2221d	N/A
9	Pronovem	Esch-sur-Alzette	Leading	13.428571	47%	1941d	N/A
10	Marks & Clerk LLP	Luxembourg	Leading	5.095238	66%	2045d	N/A
11	Watterson, Peer Marten John	–	Leading	6.090909	80%	2236d	N/A
12	Machtalère, Georges	–	Proven	23.25	23%	1714d	N/A
13	Dorschner, David	–	Proven	25.75	27%	1446d	N/A
14	Ocvirk, Philippe	Strassen	Proven	1.333333	30%	1446d	N/A
15	Fichter, Robert Arno	–	Proven	12.833333	22%	1699d	N/A
16	Lampe, Sigmar	Luxembourg	Proven	3.6	61%	1470d	N/A
17	Weydert, Robert	–	Select	5.666667	12%	1018d	N/A
18	Dennemeyer, John James	–	Select	10.333333	14%	1540d	N/A
19	Van Malderen, Joëlle	–	Select	2.666667	31%	2261d	N/A
20	Bruck, Mathis	Esch-sur-Alzette	Select	1	38%	1732d	N/A
21	Schmitz, Jean-Marie	–	Select	3.666667	9%	701d	N/A

Explore the interactive Luxembourg rankings (sortable, with designs, patents and emerging-window views), the methodology, or the FAQ.