KL
Karlsson, Leif Karl Gunnar
Stockholm, Sweden
Karlsson, Leif Karl Gunnar is a patent firm in Stockholm, Sweden, Top Rated for european patent work on the cumulative record, one of 409 firms filing in Sweden, strongest in Telecom and Computing, acting for Huawei Technologies Co., Ltd., LS Industrial Systems Co., Ltd and Svenska Rotor Maskiner AB.
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IPRATE.EUTop Rated
PATENTS · 2026
Confidence
High Confidence. The published tier reflects the selected country, vertical, track, and time window.
Vertical
Track
Window
Performance
Patents · European · Cumulative (20y)Rating
High Confidence
Archetype
Full-Service Generalist
Distinct Clients
62
Success Rate
36.1%
Volume78
Success61
Speed74
Durability64
RenewalsN/A
Domestic34
Practice profile
Top classes
Telecom(4%) · IPC H04L12/56Computing(3%) · IPC G06Q30/00
Top clients
- Huawei Technologies Co., Ltd.
- LS Industrial Systems Co., Ltd
- Svenska Rotor Maskiner AB
- Väderstad-Verken AB
- J.S.T. Mfg. Co., Ltd.