Ranking tables

Intellectual Property: Patent Litigation | USA

California

Intellectual Property covers disputes related to patent, copyright and trademark infringement. Litigation concerning trade secrets also features. We also feature related issues such as licensing and IP commercialization (US patent prosecution).

Rankings overview for Departments

1

Band 1

  1. Daralyn J Durie
    Daralyn J Durie Morrison Foerster20 Years Ranked
  2. Douglas E Lumish
    Douglas E Lumish Latham & Watkins LLP18 Years Ranked
  3. Juanita BrooksFish & Richardson PC
  4. Robert Van NestKeker, Van Nest & Peters LLP
5

Band 5

  1. Andrea Weiss Jeffries
    Andrea Weiss Jeffries Jones Day3 Years Ranked
  2. Andrew N Thomases
    Andrew N Thomases Turner Boyd Seraphine13 Years Ranked
  3. Bijal Vakil
    Bijal Vakil Skadden, Arps, Slate, Meagher & Flom LLP & Affiliates4 Years Ranked
  4. Bita Rahebi
    Bita Rahebi Morrison Foerster3 Years Ranked
  5. Chad Shear Cooley LLP2 Years Ranked
  6. Courtland L Reichman
    Courtland L Reichman Reichman Jorgensen Lehman & Feldberg LLP11 Years Ranked
  7. Darcy Jones
    Darcy Jones Kasowitz Benson Torres LLP2 Years Ranked
  8. David Lisson
    David Lisson Davis Polk & Wardwell LLP4 Years Ranked
  9. Derek C Walter
    Derek C Walter Weil, Gotshal & Manges LLP4 Years Ranked
  10. Erin Gibson
    Erin Gibson DLA Piper LLP (US)3 Years Ranked
  11. G Hopkins Guy III
    G Hopkins Guy III Baker Botts L.L.P.20 Years Ranked
  12. Irene Yang
    Irene Yang Sidley Austin LLP3 Years Ranked
  13. Jonathan K. Waldrop
    Jonathan K. Waldrop Kasowitz Benson Torres LLP2 Years Ranked
  14. Kevin Johnson Quinn Emanuel Urquhart & Sullivan, LLP13 Years Ranked
  15. Lisa S Glasser Irell & Manella LLP2 Years Ranked
  16. Luann Simmons O'Melveny & Myers LLP2 Years Ranked
  17. Martin Bader
    Martin Bader Sheppard, Mullin, Richter & Hampton LLP2 Years Ranked
  18. Matthew Berkowitz
    Matthew Berkowitz Reichman Jorgensen Lehman & Feldberg LLP3 Years Ranked
  19. Matthias Kamber
    Matthias Kamber Paul Hastings LLP3 Years Ranked
  20. Micah G Block
    Micah G Block Davis Polk & Wardwell LLP4 Years Ranked
  21. Michael Berta Arnold & Porter2 Years Ranked
  22. Michael Rhodes Cooley LLP12 Years Ranked
  23. Michelle Rhyu Cooley LLP1 Years Ranked
  24. Richard Hung
    Richard Hung Morrison Foerster3 Years Ranked
  25. Saina Shamilov Fenwick2 Years Ranked
  26. Sarah Piepmeier
    Sarah Piepmeier Perkins Coie LLP3 Years Ranked
  27. Stefani Shanberg
    Stefani Shanberg Perkins Coie LLP4 Years Ranked
  28. Stephen Korniczky
    Stephen Korniczky Sheppard, Mullin, Richter & Hampton LLP2 Years Ranked
  29. Thomas J Friel Jr
    Thomas J Friel Jr King & Spalding LLP17 Years Ranked

All Departments profiles

1

Band 1

  1. Irell & Manella LLP
    1
    Irell & Manella LLP
    Intellectual Property: Patent Litigation
    2024 | Band 1 | 4 Years Ranked
    Irell & Manella houses an esteemed IP litigation practice prized for its bench of experienced courtroom attorneys and its experience in patent disputes. The firm has additional strength for contentious trade secrets cases, licensing and post-issuance proceedings. The team is skilled at representing clients in ITC and PTAB proceedings. They are often engaged by leading technology and life sciences companies to appear in high-profile litigation.
  2. Morrison Foerster
    1
    Morrison Foerster
    Intellectual Property: Patent Litigation
    2024 | Band 1 | 4 Years Ranked
    Morrison Foerster operates a go-to practice for patent and copyright litigation, which offers a deep roster of talented courtroom advocates. The team demonstrates additional proficiency handling contentious matters arising from misuse of confidential information allegations and trademark infringement claims. It also enjoys an excellent reputation for its handling of IPRs and counsel on IP portfolio management. The group is experienced advising on licensing and collaboration agreements as well as transactional IP due diligence concerns.
  3. Quinn Emanuel Urquhart & Sullivan, LLP
    1
    Quinn Emanuel Urquhart & Sullivan, LLP
    Intellectual Property: Patent Litigation
    2024 | Band 1 | 4 Years Ranked
    Quinn Emanuel is a leading practice for complex and highly publicized patent infringement disputes, particularly in the hi-tech space. The firm is highlighted for its courtroom advocacy, including in cases involving design and standard-essential patents. The group is adept at PTAB, ITC and appellate proceedings. It also provides skilled counsel for contentious trademark matters and for cases arising from misappropriation of trade secrets allegations. The team offers notable capabilities assisting with trade dress, copyright and inventorship litigation.
2

Band 2

  1. Kirkland & Ellis LLP
    2
    Kirkland & Ellis LLP
    Intellectual Property: Patent Litigation
    2024 | Band 2 | 4 Years Ranked
    Kirkland & Ellis acts for clients in a range of contentious matters, including patent, copyright, trademark and trade secrets cases. The team also assists with post-grant proceedings and disputes involving RAND licensing matters. The firm receives particular recognition for its representation of hi-tech companies and life sciences sector clients. It offers experience handling IP disputes with significant antitrust aspects.
  2. Latham & Watkins LLP
    2
    Latham & Watkins LLP
    Intellectual Property: Patent Litigation
    2024 | Band 2 | 4 Years Ranked
    Latham & Watkins has a national footprint highlighted for its regular presence in district court, appellate and PTAB proceedings. The group offers effective representation in contentious copyright, trademark, trade secrets and patent proceedings. It provides skilled counsel to hi-tech and life sciences companies on inter partes reviews. The team is noted for the defense of clients against infringement claims brought by competitor entities. It is also distinguished for its abilities in handling TTAB opposition proceedings.
  3. WilmerHale
    2
    WilmerHale
    Intellectual Property: Patent Litigation
    2024 | Band 2 | 4 Years Ranked
    WilmerHale is highlighted for its abilities handling hi-tech patent infringement proceedings and ANDA cases. It is an effective counsel for inter partes reviews, licensing disputes and copyright, trademark and trade secret protection. The team is additionally skilled in representation for PTAB and ITC proceedings.
3

Band 3

  1. Cooley LLP
    3
    Cooley LLP
    Intellectual Property: Patent Litigation
    2024 | Band 3 | 4 Years Ranked
    Cooley handles a range of contentious matters including misuse of trade secrets and defense of patent infringement claims. The team also provides assistance with transactional matters, including licensing agreements. The firm frequently guides clients through USPTO engagements containing patent prosecutions and challenges.
  2. Gibson, Dunn & Crutcher LLP
    3
    Gibson, Dunn & Crutcher LLP
    Intellectual Property: Patent Litigation
    2024 | Band 3 | 4 Years Ranked
    Gibson, Dunn & Crutcher provides strategic and effective litigation counsel for hi-tech and life sciences companies. It assists clients with inter partes reviews at the USPTO. The group offers additional strength handling trade secrets misappropriation claims and inventorship disputes. It is also recognized for its assistance with appellate and ITC proceedings.
  3. O'Melveny & Myers LLP
    3
    O'Melveny & Myers LLP
    Intellectual Property: Patent Litigation
    2024 | Band 3 | 4 Years Ranked
    O'Melveny & Myers offers experience representing hi-tech clients in litigation arising from patent infringement claims made by nonpracticing entities. The firm also assists entertainment and consumer electronics companies on contentious soft IP matters, including copyright ownership disputes. It is noted for its excellent track record of handling inter partes reviews and has additional capabilities across trade secrets and trademark infringement matters.
  4. Orrick, Herrington & Sutcliffe LLP
    3
    Orrick, Herrington & Sutcliffe LLP
    Intellectual Property: Patent Litigation
    2024 | Band 3 | 4 Years Ranked
    Orrick has notable expertise in trade secrets misappropriation investigations and in digital copyright matters. The firm also assists clients with IP enforcement proceedings and patent infringement disputes. It is also highlighted for its expert handling of post-grant reviews at the PTAB.
  5. Fish & Richardson PC
    Intellectual Property: Patent Litigation
    2024 | Band 3
  6. Keker, Van Nest & Peters LLP
    Intellectual Property: Patent Litigation
    2024 | Band 3
4

Band 4

  1. Baker Botts L.L.P.
    4
    Baker Botts L.L.P.
    Intellectual Property: Patent Litigation
    2024 | Band 4 | 4 Years Ranked
    Baker Botts is noted for its strength providing IP counsel to high-profile technology sector clients in the Bay Area and nationwide. The group's practice includes representation in contentious IP matters before the district courts and the PTAB, and on appeal at the Federal Circuit. The team also handles patent prosecution and portfolio management for its broad range of clients.
  2. Covington & Burling LLP
    4
    Covington & Burling LLP
    Intellectual Property: Patent Litigation
    2024 | Band 4 | 4 Years Ranked
    Covington & Burling is applauded for its strength assisting technology companies with complex patent litigation matters. The group is particularly sought out for its effectiveness defending both domestic and international companies against infringement actions initiated by patent assertion entities. It has also been noted for its skilled handling of matters before the PTAB and the ITC. Furthermore, the team handles misuse of trade secrets, inventorship and licensing disputes. It offers additional capabilities advising on contentious trademark and copyright matters.
  3. DLA Piper LLP (US)
    4
    DLA Piper LLP (US)
    Intellectual Property: Patent Litigation
    2024 | Band 4 | 4 Years Ranked
    DLA Piper is a well-known firm benefiting from an extensive international network. The team has significant experience counseling clients on the defense of patent and trademark infringement claims as well as contentious copyright matters. It offers effective representation across ITC, Markman and Federal Circuit proceedings. The team also assists with Patent Office matters, including post-grant reviews and patent prosecution. It has additional strength in trademark portfolio management and licensing agreements.
  4. Fenwick
    4
    Fenwick
    Intellectual Property: Patent Litigation
    2024 | Band 4 | 4 Years Ranked
    Fenwick offers strategic and practical counsel on the management of IP portfolios and has a deep bench of technically knowledgeable patent prosecutors. The team provides adept assistance for filings, clearance searches and due diligence needs for corporate transactions. It is active in contentious patent, trademark and copyright proceedings as well as intellectual property audits and licensing agreements.
  5. Goodwin
    4
    Goodwin
    Intellectual Property: Patent Litigation
    2024 | Band 4 | 4 Years Ranked
    Goodwin regularly advises clients on a variety of IP-related issues, including patent litigation and prosecution matters as well as strategic partnerships and licensing issues. The team offers expertise in a number of sectors including technology and life sciences.
  6. Jones Day
    4
    Jones Day
    Intellectual Property: Patent Litigation
    2024 | Band 4 | 4 Years Ranked
    Jones Day is a leading name for IP portfolio management in the life sciences space, especially in biotechnology. The firm is adept at patent prosecution and IP transactions, and also assists clients with patent, copyright and trade secrets disputes. The team is skilled at handling post-grant reviews at the PTAB, often acting for pharmaceutical and hi-tech clients.
  7. Kilpatrick Townsend & Stockton LLP
    4
    Kilpatrick Townsend & Stockton LLP
    Intellectual Property: Patent Litigation
    2024 | Band 4 | 4 Years Ranked
    Kilpatrick Townsend & Stockton sports a respected IP team with nationwide resources and expertise advising consumer brand name clients on matters ranging from patent, copyright and trade dress litigation to trademark registration and licensing. The team is well equipped to take on scientifically and technically complex issues in district courts throughout the US, before the PTAB and at the Court of Appeals for the Federal Circuit.
  8. Knobbe Martens
    4
    Knobbe Martens
    Intellectual Property: Patent Litigation
    2024 | Band 4 | 4 Years Ranked
    Knobbe Martens is a highly respected IP boutique that assists clients with IP portfolio management matters including patent prosecution proceedings and due diligence for corporate transactions. The firm also handles trade dress and patent infringement claims, and advises on trade secrets misuse claims. The team offers experienced representation in post-grant reviews before the PTAB.
  9. Paul Hastings LLP
    4
    Paul Hastings LLP
    Intellectual Property: Patent Litigation
    2024 | Band 4 | 4 Years Ranked
    Paul Hastings is a sizable firm with notable expertise advising high profile technology companies involved in major IP disputes. The firm fields a strong bench of attorneys offering substantial experience representing clients before the ITC and PTAB.
  10. Perkins Coie LLP
    4
    Perkins Coie LLP
    Intellectual Property: Patent Litigation
    2024 | Band 4 | 4 Years Ranked
    Perkins Coie is a respected group with substantial experience in both contentious and noncontentious patent matters. The firm is frequently called upon to represent leading technology-sector clients in patent infringement disputes before venues including district and federal courts and the ITC. It draws upon a bench of attorneys with strong technical expertise to advise clients of all sizes on patent prosecution and portfolio management. It offers notable expertise advising Asia-based clients on US patent concerns.
  11. Ropes & Gray LLP
    4
    Ropes & Gray LLP
    Intellectual Property: Patent Litigation
    2024 | Band 4 | 4 Years Ranked
    Ropes & Gray is highlighted for its strategic approach to multijurisdictional patent infringement disputes and post-grant reviews at the PTAB. The firm counsels clients on the IP aspects of corporate transactions, complex commercial licensing and collaboration negotiations, and international opposition actions. The team also advises on patent prosecution, digital rights and privacy matters. It is noted for its expertise handling IP matters for technology and life sciences sector clients.
  12. Sidley Austin LLP
    4
    Sidley Austin LLP
    Intellectual Property: Patent Litigation
    2024 | Band 4 | 3 Years Ranked
    Sidley Austin maintains an impressive track record in high stakes IP disputes, with demonstrable experience in complex patent trials. The firm represents an enviable client base of leading technology and life sciences-sector clients.
  13. Weil, Gotshal & Manges LLP
    4
    Weil, Gotshal & Manges LLP
    Intellectual Property: Patent Litigation
    2024 | Band 4 | 4 Years Ranked
    Weil, Gotshal & Manges is regularly sought out by cutting edge electronics and life sciences companies to assist with district court and appellate proceedings arising from patent infringement allegations. The group is also highlighted for its counsel on USPTO inter partes reviews. It additionally demonstrates skill in handling complex inventorship disputes.
5

Band 5

  1. A&O Shearman
    5
    A&O Shearman
    Intellectual Property: Patent Litigation
    2024 | Band 5 | 1 Years Ranked
    A&O Shearman is noted for its sophisticated representation of clients involved in complex patent infringement disputes. The group has notable expertise in the life sciences and technology fields.
  2. Bunsow De Mory LLP
    5
    Bunsow De Mory LLP
    Intellectual Property: Patent Litigation
    2024 | Band 5 | 1 Years Ranked
    Bunsow De Mory LLP is noted for its patent litigation expertise. The firm represents notable hi-tech clients in patent disputes across forums such as district courts, federal courts, PTAB and the ITC.
  3. Davis Polk & Wardwell LLP
    5
    Davis Polk & Wardwell LLP
    Intellectual Property: Patent Litigation
    2024 | Band 5 | 4 Years Ranked
    Davis Polk & Wardwell is a respected global firm with an increasingly prominent California-based patent disputes group. It boasts an impressive client list of major technology-sector companies and offers substantial expertise appearing in high-stakes cases before the ITC, PTAB and district and federal courts.
  4. Maynard Nexsen
    5
    Maynard Nexsen
    Intellectual Property: Patent Litigation
    2024 | Band 5 | 4 Years Ranked
    Maynard Nexsen operates a broad IP practice. The group offers expertise in a variety of sectors with a particular emphasis on technology matters. It is able to further advise clients on litigation, strategy and portfolio management matters. The team is recognized for the sophisticated representation of clients involved in high-stakes patent disputes. It is adept at advising technology-sector clients of all sizes, from startups to major established companies. The group offers additional expertise in IP strategy and portfolio management.
  5. Morgan, Lewis & Bockius LLP
    5
    Morgan, Lewis & Bockius LLP
    Intellectual Property: Patent Litigation
    2024 | Band 5 | 4 Years Ranked
    Morgan, Lewis & Bockius is experienced in handling inter partes reviews, trade secret misuse allegations and the defense of infringement claims made by nonpracticing entities. The team is noted for its patent prosecution and patent counseling services. The firm is particularly highlighted for its deep expertise in the life sciences sector, including in biotechnology and biosimilars. It also advises technology clients on patent prosecution and copyright cases. It offers additional expertise in IP commercialization transactions, including licensing agreement matters.
  6. Munger, Tolles & Olson LLP
    5
    Munger, Tolles & Olson LLP
    Intellectual Property: Patent Litigation
    2024 | Band 5 | 1 Years Ranked
    Munger, Tolles & Olson is an esteemed California litigation outfit with substantial expertise in high-stakes IP disputes. The team represents an enviable client base of leading technology and media and entertainment companies.
  7. Reichman Jorgensen Lehman & Feldberg LLP
    5
    Reichman Jorgensen Lehman & Feldberg LLP
    Intellectual Property: Patent Litigation
    2024 | Band 5 | 3 Years Ranked
    Reichman Jorgensen Lehman & Feldberg maintains a strong reputation of excellence in high stakes patent disputes. As a noted trial boutique, the firm is frequently called upon by leading clients from a diverse range of industries to litigate patent infringement cases involving highly technical issues.
  8. Sheppard, Mullin, Richter & Hampton LLP
    5
    Sheppard, Mullin, Richter & Hampton LLP
    Intellectual Property: Patent Litigation
    2024 | Band 5 | 3 Years Ranked
    Sheppard Mullin is regularly called upon to litigate complex IP disputes at both federal and district court, as well as before the ITC. The team offers notable experience representing leading software and technology companies, and frequently advises clients on prosecution and portfolio management.
  9. Wilson Sonsini Goodrich & Rosati
    5
    Wilson Sonsini Goodrich & Rosati
    Intellectual Property: Patent Litigation
    2024 | Band 5 | 4 Years Ranked
    Wilson Sonsini Goodrich & Rosati houses a multifaceted practice singled out for its representation of clients in complex patent litigation and copyright disputes. It offers expert counsel on the management of IP portfolios, including with patent prosecution and due diligence for corporate transactions. The team also advises on licensing and collaboration agreement negotiations.
  10. Winston & Strawn LLP
    5
    Winston & Strawn LLP
    Intellectual Property: Patent Litigation
    2024 | Band 5 | 2 Years Ranked
    Winston & Strawn offers notable strength in complex patent disputes before district courts and the PTAB. The team also represents clients on trademark and copyright infringement matters. It is frequently called upon by clients from a diverse range of industries including technology, entertainment and life sciences.
  11. Farella Braun + Martel LLP
    Intellectual Property: Patent Litigation
    2024 | Band 5