Direct answer & research summary
Best Patents law firms in Pennsylvania are tiered by Sartori & Partners from public footprint as of July 2026, not from a numeric score: 6 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 Pennsylvania Patents board
This board maps the best Patents law firms in Pennsylvania into worded tiers as of July 2026. Each band is an editorial judgement of Patents standing across Pennsylvania; within a tier no firm outranks another, and monthly order is a locator, not a league table.
Market leaders on this board are the firms that anchor high-stakes patent filings, portfolio strategy and patent-enforcement work in Pennsylvania. Placement is a worded judgement, never a numeric rank.
Firms here maintain a clear, busy Patents profile across Pennsylvania. The label is editorial; within-tier order rotates and carries no hierarchy.
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 Pennsylvania?
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
Flaster Greenberg
Flaster Greenberg is placed in market leaders for Patents in Pennsylvania. Public mapping (banded): 25–49 attorneys, major local depth, ≈10 partners · 10 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
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
- Pennsylvania Offices | Flaster Greenbergfirm_website · G1 · 2026-07-22
- Philadelphia | Flaster Greenbergfirm_website · G1 · 2026-07-22
- Flaster Greenberg — attorney bios & practice pagesfirm_website · G2 · 2026-07-22
- Flaster Greenberg — Pennsylvania news & announcementsfirm_website · G3 · 2026-07-22
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 Pennsylvania 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 Pennsylvania Offices | Flaster Greenbergfirm_website · G1 · 2026-07-22
- 2 Philadelphia | Flaster Greenbergfirm_website · G1 · 2026-07-22
- 3 Flaster Greenberg — attorney bios & practice pagesfirm_website · G2 · 2026-07-22
- 4 Flaster Greenberg — Pennsylvania news & announcementsfirm_website · G3 · 2026-07-22
- 5 Pittsburgh | Places | K&L Gatesfirm_website · G1 · 2026-07-21
- 6 Pittsburgh | Places | K&L Gatesfirm_website · G2 · 2026-07-21
- 7 K&L Gates — Pennsylvania news & announcementsfirm_website · G3 · 2026-07-21
- 8 Buchanan Law Firm Locations | Buchanan Ingersoll & Rooney PCfirm_website · G1 · 2026-07-21
- 9 Buchanan Law Firm Locations | Buchanan Ingersoll & Rooney PCfirm_website · G1 · 2026-07-21
- 10 Buchanan Law Firm Locations | Buchanan Ingersoll & Rooney PCfirm_website · G1 · 2026-07-21
- 11 Buchanan Ingersoll & Rooney — attorney bios & practice pagesfirm_website · G2 · 2026-07-21
- 12 Buchanan Ingersoll & Rooney — Pennsylvania news & announcementsfirm_website · G3 · 2026-07-21
- 13 Eckert Seamans Cherin & Mellott — Pennsylvania office pagesfirm_website · G1 · 2026-07-21
- 14 Eckert Seamans Cherin & Mellott — attorney bios & practice pagesfirm_website · G2 · 2026-07-21
- 15 Eckert Seamans Cherin & Mellott — Pennsylvania news & announcementsfirm_website · G3 · 2026-07-21
04 — Questions
About this ranking
Who are the best Patents law firms in Pennsylvania?
As of July 2026, Flaster Greenberg occupy Tier 1 — Market leaders — on Sartori's Pennsylvania Patents board. That band is an editorial judgement of patent-mandate depth, seniority mix and market standing; full placement of all 6 visible firms is on this page.
Is Flaster Greenberg the best Patents law firm in Pennsylvania?
Flaster Greenberg sits in Tier 1 — Market leaders — of Sartori's Pennsylvania Patents board as of July 2026, alongside . 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 Patents benches in Pennsylvania?
By mapped Pennsylvania bench, the largest firms on this board are Flaster Greenberg (25–49 mapped lawyers each), followed by K&L Gates, Morgan Lewis, Buchanan Ingersoll & Rooney, DLA Piper, Eckert Seamans Cherin & Mellott (10–24). All counts are bands, never precise headcounts.
Which Patents teams are hiring in Pennsylvania?
As of July 2026, no firm on this board shows a public hiring signal in the mapping window. Live Pennsylvania 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 Pennsylvania bench depth, seniority mix and market standing set the reference point for the market. As of July 2026 that is Flaster Greenberg. Within the tier no firm outranks another.
Which are the best law firms in Pennsylvania overall?
Sartori's overall Pennsylvania board groups 25 firms into editorial tiers; as of July 2026 its Tier 1 is Morgan Lewis, Blank Rome, Cozen O'Connor, Marshall Dennehey. See /firms/in/pennsylvania/.
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.