Submit CV Hire Talent

Practice × location ranking

Best Intellectual Property law firms in Philadelphia

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 22 Jul 2026 · Next review by 22 Aug 2026 · Change log

Direct answer & research summary

Best Intellectual Property law firms in Philadelphia are tiered by Sartori & Partners from public footprint as of July 2026, not from a numeric score: 7 firms sit on this board. Sartori & Partners has completed 400+ placements since 2017 (230+ in-house), including 52 general counsel and chief legal officer searches, with a median of 11 weeks from brief to accepted offer. A NASDAQ-listed medtech in Boston accepted its successor general counsel in week 11, from a shortlist of four at day 24.

01 — The ranking

The Philadelphia Intellectual Property board

This board maps the best Intellectual Property law firms in Philadelphia into worded tiers as of July 2026. Each band is an editorial judgement of Intellectual Property standing in Philadelphia; within a tier no firm outranks another, and monthly order is a locator, not a league table.

PHILADELPHIA × INTELLECTUAL PROPERTY7 FIRMS · NO SCORESREV. 2026-07
REFFIRMPHILADELPHIA INTELLECTUAL PROPERTY BANDSIGNAL
TIER 1 — MARKET LEADERS2 FIRMS

Market leaders on this board are the firms that anchor complex patent, trademark and IP-enforcement work in Philadelphia. Placement is a worded judgement, never a numeric rank.

T1·01 Flaster Greenberg25–49 attorneys mapped · major local depth 25–49 ATTORNEYS FLAT → EVID ↓
T1·02 Baker & Hostetler25–49 attorneys mapped · major local depth 25–49 ATTORNEYS FLAT → EVID ↓
TIER 2 — HIGHLY ACTIVE2 FIRMS

Firms here maintain a clear, busy Intellectual Property profile in Philadelphia. The label is editorial; within-tier order rotates and carries no hierarchy.

T2·01 Morgan Lewis10–24 attorneys mapped · major local depth 10–24 ATTORNEYS FLAT → EVID ↓
T2·02 DLA Piper10–24 attorneys mapped · major local depth 10–24 ATTORNEYS FLAT → EVID ↓
TIER 3 — ESTABLISHED2 FIRMS

Established firms have a verified, durable Intellectual Property footprint in Philadelphia, assessed at full tier depth. They sit below the more active bands by editorial judgement, not by score.

T3·01 Duane Morris10–24 attorneys mapped · major local depth 10–24 ATTORNEYS FLAT → EVID ↓
T3·02 Blank Rome10–24 attorneys mapped · major local depth 10–24 ATTORNEYS FLAT → EVID ↓
NOTABLE — NOTABLE IN THIS FIELD1 FIRMS · OUTSIDE THE TIERS

Use this band for focused Intellectual Property teams with a mapped Philadelphia signal. Editorial words only — no scores, no within-band hierarchy among the firms listed.

N·01 FisherBroyles5–9 attorneys mapped · thin local depth 5–9 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 Philadelphia?

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 22 Jul 2026 · next review 22 Aug 2026

Firm evidence

Tier 1 — Market leaders Open firm profile →

Flaster Greenberg

Flaster Greenberg is placed in market leaders for Intellectual Property in Philadelphia. Public mapping (banded): 25–49 attorneys, major local depth, ≈15 partners · 10 counsel · 15+ associates. Evidence gates — office (G1) PASS, local practice (G2) PASS, recent signal (G3) PASS. The placement carries no numeric score.

Strongest mapped work

Intellectual PropertyCorporate & M&APrivate Client & Estate Planning

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

5–9 firms earn a tier in Philadelphia 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 Pennsylvania Offices | Flaster Greenbergfirm_website · G1 · 2026-07-22
  2. 2 Philadelphia | Flaster Greenbergfirm_website · G1 · 2026-07-22
  3. 3 Flaster Greenberg — attorney bios & practice pagesfirm_website · G2 · 2026-07-22
  4. 4 Flaster Greenberg — Philadelphia news & announcementsfirm_website · G3 · 2026-07-22
  5. 5 Offices | BakerHostetlerfirm_website · G1 · 2026-07-21
  6. 6 Baker & Hostetler — attorney bios & practice pagesfirm_website · G2 · 2026-07-21
  7. 7 Baker & Hostetler — Philadelphia news & announcementsfirm_website · G3 · 2026-07-21
  8. 8 Duane Morris LLP - Officesfirm_website · G1 · 2026-07-21
  9. 9 Duane Morris LLP - Offices - Philadelphiafirm_website · G1 · 2026-07-21
  10. 10 Duane Morris LLP - Offices - Philadelphiafirm_website · G2 · 2026-07-21
  11. 11 Duane Morris — Philadelphia news & announcementsfirm_website · G3 · 2026-07-21
22 Jul 2026 Scope-aware market-relative core assembled.
22 Jul 2026 11 verified source(s) ingested for the researched firms; tier placement comes from our own market data 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 Philadelphia?

As of July 2026, Flaster Greenberg, Baker & Hostetler occupy Tier 1 — Market leaders — on Sartori's Philadelphia Intellectual Property board. That band is an editorial judgement of IP bench depth, seniority mix and market standing; full placement of all 7 visible firms is on this page.

Is Flaster Greenberg the best Intellectual Property law firm in Philadelphia?

Flaster Greenberg sits in Tier 1 — Market leaders — of Sartori's Philadelphia Intellectual Property board as of July 2026, alongside Baker & Hostetler. 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 Philadelphia?

By mapped Philadelphia bench, the largest firms on this board are Flaster Greenberg, Baker & Hostetler (25–49 mapped lawyers each), followed by Morgan Lewis, DLA Piper, Duane Morris, Blank Rome (10–24). All counts are bands, never precise headcounts.

Which Intellectual Property teams are hiring in Philadelphia?

As of July 2026, no firm on this board shows a public hiring signal in the mapping window. Live Philadelphia 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 Philadelphia bench depth, seniority mix and market standing set the reference point for the market. As of July 2026 that is Flaster Greenberg, Baker & Hostetler. Within the tier no firm outranks another.

Which are the best law firms in Philadelphia overall?

Sartori's overall Philadelphia board groups 25 firms into editorial tiers; as of July 2026 its Tier 1 is Blank Rome, Cozen O'Connor, Marshall Dennehey, Morgan Lewis. See /firms/in/philadelphia/.

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.