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Practice × location ranking

Best Intellectual Property law firms in Chicago

Grouped into editorial tiers — words, never scores. No paid placement and no numeric rank; within a tier the order rotates monthly and carries no meaning.

Last verified 23 Jul 2026 · Next review by 23 Aug 2026 · Change log

›Direct answer & research summary

Sartori & Partners applies a weighted methodology combining the opinions of practising lawyers — more than 10,000 lawyers interviewed — with monthly market surveys. As of July 2026, the best Intellectual Property law firms in Chicago are: Barnes & Thornburg, Crowell & Moring, Foley & Lardner, K&L Gates, Kirkland & Ellis, Michael Best & Friedrich, Neal Gerber & Eisenberg, Nixon Peabody, Banner & Witcoff, Benesch, Taft Stettinius & Hollister, Bass Berry & Sims, Fish & Richardson, Reinhart Boerner Van Deuren, Spencer Fane, von Briesen & Roper.

01 — The ranking

The Chicago Intellectual Property board

A tier on this Chicago Intellectual Property board names relative firm standing in words. Placement speaks to IP prosecution, enforcement and portfolio advisory presence; order inside each band carries no hierarchy and is not a score.

CHICAGO × INTELLECTUAL PROPERTY16 FIRMS · NO SCORESREV. 2026-07
REFFIRMCHICAGO INTELLECTUAL PROPERTY BANDSIGNAL
TIER 1 — MARKET LEADERS2 FIRMS

The top editorial band for the best Intellectual Property law firms in Chicago: firms that set the tone for Intellectual Property mandates at scale in Chicago. Within-tier sequence rotates and is not a ranking.

T1·01 Barnes & Thornburg25–49 attorneys mapped · major local depth 25–49 ATTORNEYS FLAT → EVID ↓
T1·02 Crowell & Moring25–49 attorneys mapped · major local depth 25–49 ATTORNEYS FLAT → EVID ↓
TIER 2 — HIGHLY ACTIVE7 FIRMS

Highly active on the Chicago Intellectual Property board means consistent patent, trademark and IP-litigation presence and peer recognition short of the leader set. No numeric score is assigned.

T2·01 Foley & Lardner25–49 attorneys mapped · major local depth 25–49 ATTORNEYS FLAT → EVID ↓
T2·02 K&L Gates25–49 attorneys mapped · major local depth 25–49 ATTORNEYS FLAT → EVID ↓
T2·03 Kirkland & Ellis25–49 attorneys mapped · major local depth 25–49 ATTORNEYS FLAT → EVID ↓
T2·04 Michael Best & Friedrich25–49 attorneys mapped · major local depth 25–49 ATTORNEYS FLAT → EVID ↓
T2·05 Neal Gerber & Eisenberg25–49 attorneys mapped · major local depth 25–49 ATTORNEYS FLAT → EVID ↓
T2·06 Nixon Peabody25–49 attorneys mapped · major local depth 25–49 ATTORNEYS FLAT → EVID ↓
T2·07 Banner & Witcoff50–99 attorneys mapped · major local depth 50–99 ATTORNEYS FLAT → EVID ↓
TIER 3 — ESTABLISHED2 FIRMS

This band covers firms with solid Intellectual Property standing and mapped benches in Chicago, without the intensity of the tiers above. Within-tier order is deliberately flat.

T3·01 Benesch25–49 attorneys mapped · major local depth 25–49 ATTORNEYS FLAT → EVID ↓
T3·02 Taft Stettinius & Hollister10–24 attorneys mapped · major local depth 10–24 ATTORNEYS FLAT → EVID ↓
NOTABLE — NOTABLE IN THIS FIELD5 FIRMS · OUTSIDE THE TIERS

Notable in this field marks verified Intellectual Property presence in Chicago below full tier depth — specialist or thinner benches kept visible on purpose, not scored into the main bands.

N·01 Bass Berry & Sims1–4 attorneys mapped · thin local depth 1–4 ATTORNEYS FLAT → EVID ↓
N·02 Fish & Richardson1–4 attorneys mapped · thin local depth 1–4 ATTORNEYS FLAT → EVID ↓
N·03 Reinhart Boerner Van Deuren1–4 attorneys mapped · thin local depth 1–4 ATTORNEYS FLAT → EVID ↓
N·04 Spencer Fane1–4 attorneys mapped · thin local depth 1–4 ATTORNEYS FLAT → EVID ↓
N·05 von Briesen & Roper1–4 attorneys mapped · thin local depth 1–4 ATTORNEYS FLAT → EVID ↓

All counts are shown as bands, never precise headcounts. Notable firms sit outside the tiers by design: verified minimal presence, not assessed at full tier depth.

Hiring in Chicago?

We map this market every day.

The evidence behind these tiers is the same intelligence we use to run retained searches for partners, groups and senior associates.

02 — Evidence, methodology & sources why each firm · how tiers are set · sources · change log · verified 23 Jul 2026 · next review 23 Aug 2026

Firm evidence

Tier 1 — Market leaders Open firm profile →

Barnes & Thornburg

Barnes & Thornburg is placed in market leaders for Intellectual Property in Chicago. Public mapping (banded): 25–49 attorneys, major local depth, ≈25 partners · <5 counsel · 10+ associates. Evidence gates — office (G1) PASS, local practice (G2) PASS, recent signal (G3) PASS. The placement carries no numeric score.

Strongest mapped work

Litigation & DisputesIntellectual PropertyCorporate & M&A

Public hiring signal

Hiring signal: FLAT — no public hiring change detected in the mapping window.

Limits of this assessment

  • —A tier is Sartori’s editorial opinion, not a fact about the firm or a client-satisfaction measure.
  • —Facts are mapped from public sources and shown as bands; they lag reality by weeks or months.
  • —No third-party legal-directory band is used as an input.

Sources for this entry

Methodology

How tiers are assigned

Deterministic public-footprint core (local depth, practice share, seniority mix, public hiring momentum), computed relative to this market's own distribution. Tier placement is derived from this public mapped data; a per-firm public-source ledger is compiled for firms in the annual research pass and applies to those firms' factual claims, not to tier membership. No third-party legal-directory bands are used as an input.

Market scope

10–24 firms earn a tier in Chicago within this scope (banded).

Disclosures

Firm names used nominatively (factual). All counts shown as bands, never precise headcounts. No firm logos. Report an error via the site contact form.

Sources & change log

  1. 1 Locations | Barnes & Thornburgfirm_website · G1 · 2026-07-21
  2. 2 Chicago Business Law Firm | Barnes & Thornburgfirm_website · G1 · 2026-07-21
  3. 3 Chicago Business Law Firm | Barnes & Thornburgfirm_website · G2 · 2026-07-21
  4. 4 Barnes & Thornburg — Chicago news & announcementsfirm_website · G3 · 2026-07-21
  5. 5 Locations | Crowell & Moring LLPfirm_website · G1 · 2026-07-21
  6. 6 Crowell & Moring — attorney bios & practice pagesfirm_website · G2 · 2026-07-21
  7. 7 Crowell & Moring — Chicago news & announcementsfirm_website · G3 · 2026-07-21
  8. 8 Offices | Foley & Lardner LLPfirm_website · G1 · 2026-07-21
  9. 9 Foley & Lardner — attorney bios & practice pagesfirm_website · G2 · 2026-07-21
  10. 10 Foley & Lardner — Chicago news & announcementsfirm_website · G3 · 2026-07-21
  11. 11 Chicago | Places | K&L Gatesfirm_website · G1 · 2026-07-21
  12. 12 Chicago | Places | K&L Gatesfirm_website · G2 · 2026-07-21
  13. 13 K&L Gates Advises SoniVie in its Acquisition by Boston Scientific for US$600 Millionfirm_website · G3 · 2026-07-21
  14. 14 2025 Asset Management and Investment Funds Fall Conference—Chicago | HUB | K&L Gatesfirm_website · G3 · 2026-07-21
  15. 15 Offices | Michael Best & Friedrich LLPfirm_website · G1 · 2026-07-21
  16. 16 Michael Best & Friedrich — attorney bios & practice pagesfirm_website · G2 · 2026-07-21
  17. 17 Michael Best & Friedrich — Chicago news & announcementsfirm_website · G3 · 2026-07-21
  18. 18 Our Office | Neal, Gerber & Eisenberg LLPfirm_website · G1 · 2026-07-22
  19. 19 Our Story | Neal, Gerber & Eisenberg LLPfirm_website · G2 · 2026-07-22
  20. 20 Client Services | Neal, Gerber & Eisenberg LLPfirm_website · G2 · 2026-07-22
  21. 21 Neal Gerber Eisenberg to Move to Chicago Landmark Building in 2025 | Neal, Gerber & Eisenberg LLPfirm_website · G3 · 2026-07-22
  22. 22 Neal Gerber Eisenberg Achieves LEED Platinum Certification for New Office at The Bell | Neal, Gerber & Eisenberg LLPfirm_website · G3 · 2026-07-22
  23. 23 Office Locations | Nixon Peabody LLPfirm_website · G1 · 2026-07-21
  24. 24 Nixon Peabody — attorney bios & practice pagesfirm_website · G2 · 2026-07-21
  25. 25 Nixon Peabody — Chicago news & announcementsfirm_website · G3 · 2026-07-21
  26. 26 Locations - Banner Witcofffirm_website · G1 · 2026-07-22
  27. 27 Home - Banner Witcofffirm_website · G1 · 2026-07-22
  28. 28 Banner & Witcoff — attorney bios & practice pagesfirm_website · G2 · 2026-07-22
  29. 29 Banner & Witcoff — Chicago news & announcementsfirm_website · G3 · 2026-07-22
  30. 30 Our Offices & Locations | Benesch, Friedlander, Coplan & Aronoff LLPfirm_website · G1 · 2026-07-21
  31. 31 Benesch — attorney bios & practice pagesfirm_website · G2 · 2026-07-21
  32. 32 News USA Highlights Benesch as a Top Workplace in Chicago and Cleveland | Benesch Lawfirm_website · G3 · 2026-07-21
  33. 33 Offices | Taft Lawfirm_website · G1 · 2026-07-21
  34. 34 About | Chicago | Taft Lawfirm_website · G1 · 2026-07-21
  35. 35 About | Chicago | Taft Lawfirm_website · G2 · 2026-07-21
  36. 36 Taft Stettinius & Hollister — Chicago news & announcementsfirm_website · G3 · 2026-07-21
  37. 37 Contact | Bass, Berry & Sims PLCfirm_website · G1 · 2026-07-21
  38. 38 Bass Berry & Sims — attorney bios & practice pagesfirm_website · G2 · 2026-07-21
  39. 39 Bass Berry & Sims — Chicago news & announcementsfirm_website · G3 · 2026-07-21
  40. 40 Locations | Reinhart Boerner Van Deuren s.c.firm_website · G1 · 2026-07-21
  41. 41 Reinhart Boerner Van Deuren — attorney bios & practice pagesfirm_website · G2 · 2026-07-21
  42. 42 Reinhart Hosts Annual Consumer Finance Symposium | Reinhart Boerner Van Deuren s.c.firm_website · G3 · 2026-07-21
  43. 43 Law Firms in Milwaukee | Law Firms in Madison WI | von Briesen & Roper, s.c.firm_website · G1 · 2026-07-22
  44. 44 von Briesen & Roper — attorney bios & practice pagesfirm_website · G2 · 2026-07-22
23 Jul 2026 Scope-aware market-relative core assembled.
23 Jul 2026 44 verified source(s) ingested for the researched firms; tier placement is Titan-derived so unresearched visible firms do not block approval → APPROVED (auto).
Report an error in this ranking →

04 — Questions

About this ranking

Who are the best Intellectual Property law firms in Chicago?

Who leads Intellectual Property in Chicago? As of July 2026, Market leaders are Barnes & Thornburg, Crowell & Moring. Sartori does not name a single number-one firm; the gap inside Tier 1 is treated as unmeasurable, and the wider board of 16 firms uses worded tiers only.

Is Barnes & Thornburg the best Intellectual Property law firm in Chicago?

Barnes & Thornburg sits in Tier 1 — Market leaders — of Sartori's Chicago Intellectual Property board as of July 2026, alongside Crowell & Moring. Sartori does not name a single #1: the gap between Tier 1 firms is genuinely unmeasurable, and a numeric score would be false precision.

Which firms have the biggest Intellectual Property benches in Chicago?

By mapped Chicago bench, the largest firms on this board are Banner & Witcoff (50–99 mapped lawyers each), followed by Barnes & Thornburg, Crowell & Moring, Foley & Lardner, K&L Gates, Kirkland & Ellis, Michael Best & Friedrich, Neal Gerber & Eisenberg, Nixon Peabody, Benesch (25–49). All counts are bands, never precise headcounts.

Which Intellectual Property teams are hiring in Chicago?

As of July 2026, no firm on this board shows a public hiring signal in the mapping window. Live Chicago mandates are listed on Sartori's jobs board.

What is a Tier 1 law firm?

In Sartori's rankings, Tier 1 — Market leaders — is an editorial judgement expressed in words, never a score: the firms whose Chicago bench depth, seniority mix and market standing set the reference point for the market. As of July 2026 that is Barnes & Thornburg, Crowell & Moring. Within the tier no firm outranks another.

Which are the best law firms in Chicago overall?

Sartori's overall Chicago board groups 25 firms into editorial tiers; as of July 2026 its Tier 1 is Jenner & Block, Katten Muchin Rosenman, Kirkland & Ellis, Mayer Brown, Sidley Austin, Winston & Strawn, DLA Piper. See /firms/in/chicago/.

See the ranking →

This ranking is compiled independently by Sartori from public sources. Tiers are Sartori’s editorial opinion, expressed without numeric scores; firms are named for identification only, no logos are reproduced, and no firm has paid for or approved its placement. No third-party legal-directory band is used as an input. Nothing here is legal advice or a recommendation to instruct counsel.