In-depth reporting and analytical commentary on intellectual property disputes and debates. No legal advice.

SEP Litigators: Lists and Recent Achievements

This includes litigation-savvy patent attorneys involved with SEP cases.

  1. By number of SEP litigators
  2. In alphabetical order
  3. Recent wins

1. By number of SEP litigators

Hogan Lovells100
Hoyng Rokh Monegier65
Bardehle Pagenberg47
Clifford Chance38
Licks Attorneys37
EIP35
Arnold Ruess22
Daniel22
df-mp.tech22
Powell Gilbert20
Bristows19
Kather Augenstein17
Wildanger17
BDPE12
PENTARC12
Fangda Partners10
RNA Law10
Ampersand9
Noerr8
OlarteMoure6
DTMV Avocats2
IPCGS2
Zimmermann & Partner2

(table last updated on March 20, 2026)

2. In alphabetical order

Ampersand9
Arnold Ruess22
Bardehle Pagenberg47
BDPE12
Bristows19
Clifford Chance38
Daniel22
df-mp.tech22
DMTV Avocats2
EIP35
Fangda Partners10
Hogan Lovells100
Hoyng Rokh Monegier65
IPCGS2
Kather Augenstein17
Licks Attorneys37
Noerr8
OlarteMoure6
PENTARC12
Powell Gilbert20
RNA Law10
Wildanger17
Zimmermann & Partner2

(table last updated on March 20, 2026)

3. Recent wins

Below we always just list a given firm’s most recent win of a certain kind so as to maximize the chances of firms being listed. If there were more wins of a given kind, you will find them in the firm profile.

3.01 Defended SEP/FRAND wins on appeal

  • Licks Attorneys
    ZTE v. Samsung (February 3, 2026 – 14th Private Law Chamber of the Rio de Janeiro State Court of Appeals):
    ZTE defeats Samsung again as Brazilian appeals court reinstates 5G injunction, declines to give Samsung “free pass to infringe” and hold out – ip fray
  • Licks Attorneys
    VoiceAge v. Multilaser and HMD (January 30, 2025 – 10th Private Law Chamber of the Rio de Janeiro State Court of Appeals):
    Two Chinese SEP injunctions in VoiceAge EVS v. HMD — implementer failed to comply with FRAND – ip fray
  • OlarteMoure
    Ericsson v. Motorola (July 9, 2024 – Superior Tribunal of Bogotá, Civil Chamber).
  • OlarteMoure
    Ericsson v. MPS Mayorista de Colombia (May 29, 2024 – Superior Tribunal of Bogotá, Civil Chamber).
  • Daniel
    Philips v. Semp Toshiba (October 4, 2023 – Enlarged Panel of the Superior Court of Justice, original decisions by the 1st Civil Court of Sao Paulo reversed by the Sao Paulo Court of Appeal, special appeal partly allowed by the 3rd Chamber of the Superior Court of Justice).
  • RNA Law
    G+ v. Samsung (September 13, 2022 – Rio de Janeiro State Court of Appeals, 13th Private Law Chamber).
  • Arnold Ruess
    Sisvel v. Haier (November 21, 2020 – Federal Supreme Court).
  • EIP
    Unwired Planet v. Huawei (August 26, 2020 – Supreme Court of the United Kingdom):
    Judgment – Bailii
  • Arnold Ruess
    Sisvel v. Haier (May 5, 2020 – Federal Supreme Court).
  • EIP
    Unwired Planet v. Huawei and others (October 23, 2018 – Court of Appeal of England and Wales):
    Judgment – Bailii

(list last updated on March 13, 2026)

3.02 Overturned SEP/FRAND decisions on appeal

  • Licks Attorneys
    Dolby v. Transsion and Positivo (June 10, 2025 – 18th Private Law Chamber of the Rio de Janeiro State Court of Appeals. Original decision by the 1st Business Court of Rio de Janeiro, judgment of May 12, 2025).
  • EIP
    Optis v. Apple (May 1, 2025 – Court of Appeal of England and Wales):
    Apple owes more than $700M in standard-essential patent royalties and interest to licensing firm Optis: England & Wales Court of Appeal – ip fray
  • OlarteMoure
    Ericsson v. Colombiana de Comercio (February 10, 2025 – Superior Tribunal of Bogotá, Civil Chamber).
  • OlarteMoure
    Ericsson v. Apple (November 25, 2022 – Superior Tribunal of Bogotá, Civil Chamber).
  • Licks Attorneys
    JVC v. TCL (December 14, 2023 – 15th Private Law Chamber of the Rio de Janeiro State Court of Appeals. Original decision by the 6th Business Court of Rio de Janeiro, judgment of November 29, 2023).
  • Daniel
    Philips v. Semp Toshiba (February 11, 2014 – São Paulo Court of Appeal, setting aside the final decision on the merits rendered by the 1st Civil Court of Sao Paulo that had rejected Philips’ infringement claim on invalidity grounds).

(list last updated on March 13, 2026)

3.03 Won permanent SEP injunctions

There’s even more! For older achievements in this category, please check out the related archive page.

(list last updated on March 13, 2026)

3.04 Defended against requests for permanent SEP injunctions

N/A

(list last updated on December 12, 2025)

3.05 Won preliminary SEP injunctions

There’s even more! For older achievements in this category, please check out the related archive page.

(list last updated on March 13, 2026)

3.06 Defended against motions for preliminary SEP injunction

  • RNA Law
    Panasonic v. HMD (August 13, 2025 – Rio de Janeiro State Court – Infringement action, decision declining to assess the PI request prior to a court-appointed expert examination).
  • RNA Law
    NEC v. HMD (June 27, 2025 – Rio de Janeiro State Court – Infringement action, decision declining to assess the PI request prior to a court-appointed expert examination).
  • Daniel
    Vringo v. ZTE Corp (April 15, 2014 – 5th Business Court of Rio de Janeiro, preliminary injunction order for Vringo).

(list last updated on March 13, 2026)

3.07 Won antisuit/anti-antisuit injunctions

There’s even more! For older achievements in this category, please check out the related archive page.

(list last updated on December 26, 2025)

3.08 Fended off or defused ASIs/AASIs

  • RNA Law
    Huawei v. Mediatek (August 22, 2025 – São Paulo State Court – Defended Mediatek in a declaratory judgment of non-infringement action filed by Huawei seeking to stop Mediatek from enforcing 10 Brazilian SEPs, fended off Huawei’s DOJ/ASI attempt and filed interim license and infringement counterclaim).

    (list last updated on December 31, 2025)

3.09 Won SEP-related antitrust or contract liability rulings

(list last updated on December 24, 2025)

3.10 Fended off SEP-related antitrust or contract claims

(list last updated on January 30, 2026)

3.11 Litigated FRAND determination claims

(list last updated on December 31, 2025)

3.12 Conducted FRAND arbitrations

  • Arnold Ruess
    Mediation ASUS v. Lenovo (before the Mediation Center at the District Court Munich).

(list last updated on December 12, 2025)

3.13 Invalidated SEPs

(list last updated on December 12, 2025)

3.14 Defended SEPs against invalidity contentions (not UPC-related)

There’s even more! For older achievements in this category, please check out the related archive page.

(list last updated on March 13, 2026)

3.15 Won technical infringement rulings over SEPs

There’s even more! For older achievements in this category, please check out the related archive page.

(list last updated on March 13, 2026)

3.16 Defended against SEP-based infringement allegations

(list last updated on December 12, 2025)

3.17 Settlements prior to decisions

There’s even more! For older achievements in this category, please check out the related archive page.

(list last updated on December 31, 2025)

3.18 Other SEP-related achievements

(list last updated on March 13, 2026)