February 9, 2023

theliverpoolactorsstudio

The Legal System

Firms with the Most Patent Attorneys and Agents



The following list ranks the top 25 firms with the most registered  patent law professionals.  All of these firms have 100+ patent attorneys/agents.  I also include a note following the firm with some information about how the numbers have changed since 2010.

  1. Fish & Richardson (Steady)
  2. Finnegan Henderson (Down 50+, Spin-off firms, including Bookoff McAndrews & McNeill Baur)
  3. Wilson Sonsini (More than doubled, mostly new attorneys/agents)
  4. Knobbe Martens (Steady)
  5. Kilpatrick Townsend (Big growth from merger of firms)
  6. Foley & Lardner (Steady)
  7. Baker Botts (Steady)
  8. IBM (Steady)
  9. Perkins Coie (More than doubled)
  10. Morrison & Foerster (Steady)
  11. Cooley (More than doubled, mostly new attorneys/agents)
  12. Sterne Kessler (Some growth)
  13. Morgan Lewis (Some growth)
  14. Jones Day (Some decline)
  15. Schwegman Lundberg (Doubled)
  16. Wolf Greenfield (Doubled)
  17. Banner & Witcoff (Some growth)
  18. Polsinelli PC (Huge growth, including folks from Novak Druce;  Dorsey; etc. and also new attorneys)
  19. Johnson & Johnson (company)
  20. Alston & Bird (Steady)
  21. Kirkland & Ellis (Steady)
  22. Haynes and Boone (Growth – mostly new attorneys)
  23. Mintz Levin (Doubled – mostly new attorneys)
  24. Qualcomm (Some growth)
  25. Harness IP (Some decline)

Firms with the biggest losses of folks since 2010 include Kenyon & Kenyon (firm closed — 150 people); Brinks (down to 86 from 160, folks left to go to lots of different places); Woodcock (most joined BakerHostetler); Blakely Sokoloff (firm closed an many joined Womble Bond but also spin-off firms of Jaffery Watson; Nicholson De Vos); Connolly Bove (firm closed); Fitzpatrick Cella (Firm closed with many joining Venable); Ropes & Gray (lots of folks left to other firms, including spin-off Haley Guiliano); Novak Druce (lots of poaching, including by Polsinelli; Duane Morris, etc.).

The list has a some big caveats.  (1) The data comes from the USPTO register, and some attorneys are not good at updating their information. For example. Kenyon & Kenyon closed its doors in 2016, but 30+ registrations still list the firm.  (2) A number of folks use their home (or some other) address rather than firm address for the registration. (3) Retired folks often do not update their registration.