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

IPRATE analysed 191 firms across 7,652 European (EPO) patent filings in Norway; 56 firms met the evidence thresholds and are ranked below (Top Rated is the top quarter, every other firm is Rated). Based on official EUIPO, EPO and national IP office records. Ratings are never sold or sponsored.

Comparing patent firms in Norway

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	Protector IP	Oslo	Top Rated	18	73%	1995d	N/A
2	Bayramoglu et al.	Oslo	Top Rated	32.666667	100%	1087d	N/A
3	Fluge, Per Roald	Oslo	Top Rated	6.7	59%	1448d	N/A
4	Oslo Patentkontor	Oslo	Top Rated	8.875	58%	1868d	N/A
5	Keltie LLP	London	Top Rated	19.875	100%	1761d	N/A
6	LIGL IP Consult	Oslo	Top Rated	4.4	88%	1599d	N/A
7	Curo	Oslo	Top Rated	11.842105	53%	2279d	N/A
8	ONSAGERS	Oslo	Top Rated	4	100%	1895d	N/A
9	Wulff, Marianne Weiby	Oslo	Top Rated	4.083333	51%	1574d	N/A
10	Acapo	Oslo	Top Rated	26.47619	68%	1975d	N/A
11	Tofting, Arild	Oslo	Top Rated	4.222222	61%	2341d	N/A
12	Heggstad, Jon Dagson	Oslo	Top Rated	2.692308	66%	2504d	N/A
13	Rekdal, Kristine	Oslo	Top Rated	3.818182	51%	2625d	N/A
14	AWA Norway	Oslo	Top Rated	8.538462	76%	1603d	N/A
15	Tafjord, Harald	Oslo	Rated	4.153846	63%	2311d	N/A
16	Balle, Morten	Oslo	Rated	3.1	61%	1701d	N/A
17	Bryn Aarflot	Oslo	Rated	29.782609	73%	1880d	N/A
18	Lillegraven, Rita	Oslo	Rated	4.428571	35%	2898d	N/A
19	Thorstad, Pat Lam	Oslo	Rated	2.5	100%	1104d	N/A
20	Fluges patent	Oslo	Rated	2.666667	75%	1308d	N/A
21	Thrane, Dag	Oslo	Rated	4.5	51%	1670d	N/A
22	Berkkam, Ayfer	Oslo	Rated	8	100%	1298d	N/A
23	Schmidt, Claus Christian	Oslo	Rated	2.727273	63%	1979d	N/A
24	Kaya, Erdem	Oslo	Rated	3.416667	100%	1864d	N/A
25	Midttun, Gisle Johan	Oslo	Rated	1.666667	73%	2179d	N/A
26	Håmsø, Gunnar	Oslo	Rated	2.857143	55%	2671d	N/A
27	Berg, André	Oslo	Rated	1.923077	88%	2665d	N/A
28	Genç Ilhan, Oznur	Istanbul	Rated	2.384615	100%	1997d	N/A
29	Hindenes, Jan-Ove	Oslo	Rated	1.2	41%	2084d	N/A
30	Wesmann, Johan Fredrik	Oslo	Rated	2.777778	56%	2167d	N/A
31	Haffner, Andreas	Oslo	Rated	2.3	30%	2122d	N/A
32	Acapo Onsagers	Oslo	Rated	76.304348	73%	1661d	N/A
33	Øvsttun, Trond	Oslo	Rated	2	59%	2749d	N/A
34	Hermansen, Cécile Irene	Oslo	Rated	1.7	71%	2148d	N/A
35	Ormberg, Jan Olav	Oslo	Rated	2.4	58%	1999d	N/A
36	Thorvaldsen, Knut	Oslo	Rated	1.666667	86%	1394d	N/A
37	Ekstedt, Måns	Oslo	Rated	2.166667	54%	1975d	N/A
38	Langfeldt, Jens Fredrik Conradi	Oslo	Rated	2.8	43%	1801d	N/A
39	Olsen, Svein Arne	Oslo	Rated	1.888889	47%	2925d	N/A
40	Hofseth, Svein	Oslo	Rated	1.555556	31%	2542d	N/A
41	Håmsø Patentbyrå	Stavanger	Rated	49	68%	1825d	N/A
42	Sønstevold, Anne	Oslo	Rated	1.714286	73%	2294d	N/A
43	Norris, Timothy Sweyn	Oslo	Rated	2.2	27%	1097d	N/A
44	Yamankaradeniz, Kemal	Istanbul	Rated	7	100%	1906d	N/A
45	Livgard, Kim Are Birkeli	Oslo	Rated	3.444444	48%	2712d	N/A
46	Nikolov, Nikolay Dontchev	Oslo	Rated	2	67%	2288d	N/A
47	Carsten Lous	Oslo	Rated	1.714286	50%	2108d	N/A
48	Dericioglu, E. Korhan	Oslo	Rated	3.5	100%	1885d	N/A
49	Byklum, Knut Birger	Oslo	Rated	1.666667	44%	1550d	N/A
50	Coward, Bjarne G.	Oslo	Rated	1.75	50%	2159d	N/A
51	Mindrebøe, Krister	Oslo	Rated	1.25	40%	2004d	N/A
52	Soylu, Ekrem	Istanbul	Rated	3.333333	100%	2241d	N/A
53	McQueen, Andrew Peter	Oslo	Rated	2.75	18%	636d	N/A
54	Kayahan, Senem	Oslo	Rated	1.714286	100%	2076d	N/A
55	Sevinç, Erkan	Oslo	Rated	1.363636	100%	2262d	N/A
56	Zacco Norway	Oslo	Rated	36.391304	71%	1921d	N/A

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