Top Trademark Attorneys — Maryland
Attorneys with the most trademark registrations to their name for businesses in Maryland, by registration year. Updated with every data refresh.
2026 is still in progress. Registrations continue to be issued through the year, so these counts will rise and the order may change. Completed years are shown for comparison.
Top Trademark Attorneys — businesses in Maryland, 2026
| # | Attorney | Registrations |
|---|---|---|
| 1 | Rebecca Liebowitz | 38 |
| 2 | Rosezena J Pierce | 24 |
| 3 | John N Costello | 17 |
| 4 | Christopher M Thomas | 14 |
| 5 | Michael K Fretwell | 13 |
| 6 | Kimberly S Grimsley | 12 |
| 7 | Ned T Himmelrich | 12 |
| 8 | Neidy E Hornsby | 12 |
| 9 | John Nelson Costello | 11 |
| 10 | Stacey V Pierre | 11 |
Top Trademark Attorneys — businesses in Maryland, 2025
| # | Attorney | Registrations |
|---|---|---|
| 1 | Rebecca Liebowitz | 49 |
| 2 | Kimberly S Grimsley | 30 |
| 3 | Neidy E Hornsby | 27 |
| 4 | Rosezena J Pierce | 24 |
| 5 | Trevor A Caudle | 22 |
| 6 | Rachel Mech | 21 |
| 7 | Ruy Garcia-Zamor | 21 |
| 8 | John N Costello | 19 |
| 9 | Charles L Riddle | 18 |
| 10 | Daniel Saam | 17 |
Top Trademark Attorneys — businesses in Maryland, 2024
| # | Attorney | Registrations |
|---|---|---|
| 1 | Rosezena J Pierce | 47 |
| 2 | Kimberly S Grimsley | 35 |
| 3 | Rebecca Liebowitz | 33 |
| 4 | Neidy E Hornsby | 26 |
| 5 | Laila Ghauri | 20 |
| 6 | Christopher M Thomas | 17 |
| 7 | John N Costello | 17 |
| 8 | Michael K Fretwell | 17 |
| 9 | Justin Johanson | 16 |
| 10 | Kyona McGhee | 16 |
Top Trademark Attorneys — businesses in Maryland, 2023
| # | Attorney | Registrations |
|---|---|---|
| 1 | Rebecca Liebowitz | 55 |
| 2 | Rosezena J Pierce | 32 |
| 3 | Erik M Pelton | 21 |
| 4 | Ashley Fucaloro | 19 |
| 5 | Joshua M Gerben | 15 |
| 6 | Camille M Miller | 14 |
| 7 | Michael K Fretwell | 14 |
| 8 | Rita K Sinha-Marsh | 14 |
| 9 | Ruy Garcia-Zamor | 14 |
| 10 | Jalissa Bauman Horne | 13 |
Top Trademark Attorneys — businesses in Maryland, 2022
| # | Attorney | Registrations |
|---|---|---|
| 1 | Rosezena J Pierce | 39 |
| 2 | Rebecca Liebowitz | 37 |
| 3 | Andrea Evans | 26 |
| 4 | Joshua M Gerben | 26 |
| 5 | Kimberly S Grimsley | 23 |
| 6 | Kyona McGhee | 23 |
| 7 | Michael K Fretwell | 19 |
| 8 | Jalissa Bauman Horne | 18 |
| 9 | Laila Ghauri | 16 |
| 10 | Neidy E Hornsby | 16 |
Top Trademark Attorneys — businesses in Maryland, 2021
| # | Attorney | Registrations |
|---|---|---|
| 1 | Rosezena J Pierce | 37 |
| 2 | Rebecca Liebowitz | 29 |
| 3 | Joshua M Gerben | 26 |
| 4 | Andrea Evans | 19 |
| 5 | Kyona McGhee | 19 |
| 6 | Christopher J Day | 17 |
| 7 | Julie A Hopkins | 17 |
| 8 | Kimberly S Grimsley | 16 |
| 9 | Eric J Von Vorys | 15 |
| 10 | Neidy E Hornsby | 15 |
Top Trademark Attorneys — businesses in Maryland, 2020
| # | Attorney | Registrations |
|---|---|---|
| 1 | Kimberly S Grimsley | 23 |
| 2 | Angela Y Dai | 16 |
| 3 | Jonathan R Wachs | 15 |
| 4 | Rebecca Liebowitz | 14 |
| 5 | Sherry Flax | 14 |
| 6 | Darren Heitner | 13 |
| 7 | Eric J Von Vorys | 13 |
| 8 | David R Schaffer | 12 |
| 9 | Julie A Hopkins | 12 |
| 10 | Linda S Hutchison | 12 |
Top Trademark Attorneys — businesses in Maryland, 2019
| # | Attorney | Registrations |
|---|---|---|
| 1 | Christopher M Thomas | 52 |
| 2 | Rebecca Liebowitz | 43 |
| 3 | Kimberly S Grimsley | 35 |
| 4 | Ned T Himmelrich | 35 |
| 5 | Naresh Kilaru | 21 |
| 6 | Gregory M Stone | 19 |
| 7 | Raj Abhyanker | 19 |
| 8 | Angela Y Dai | 18 |
| 9 | Michael Markos | 18 |
| 10 | Joseph Conklin | 17 |
Top Trademark Attorneys — businesses in Maryland, 2018
| # | Attorney | Registrations |
|---|---|---|
| 1 | Rebecca Liebowitz | 52 |
| 2 | Jonathan R Wachs | 32 |
| 3 | Raj Abhyanker | 27 |
| 4 | Thomas Dunlap | 25 |
| 5 | Kimberly S Grimsley | 18 |
| 6 | Gregory M Stone | 16 |
| 7 | Angela Y Dai | 14 |
| 8 | Joshua M Gerben | 14 |
| 9 | Ned T Himmelrich | 13 |
| 10 | Andrea H Evans | 12 |
Top Trademark Attorneys — businesses in Maryland, 2017
| # | Attorney | Registrations |
|---|---|---|
| 1 | Rebecca Liebowitz | 42 |
| 2 | Kimberly S Grimsley | 35 |
| 3 | Raj Abhyanker | 32 |
| 4 | Angela Y Dai | 22 |
| 5 | Naresh Kilaru | 22 |
| 6 | Patricia E Campbell Tmcp-Umd | 22 |
| 7 | Andrew D Price | 21 |
| 8 | Jonathan R Wachs | 16 |
| 9 | Sherry Flax | 16 |
| 10 | Joshua M Gerben | 14 |
Top Trademark Attorneys — businesses in Maryland, 2016
| # | Attorney | Registrations |
|---|---|---|
| 1 | Rebecca Liebowitz | 48 |
| 2 | Raj Abhyanker | 42 |
| 3 | Kimberly S Grimsley | 27 |
| 4 | Jonathan R Wachs | 26 |
| 5 | Matthew H Swyers | 21 |
| 6 | Paul C Jorgensen | 21 |
| 7 | Ned T Himmelrich | 19 |
| 8 | Michael D Steger | 18 |
| 9 | Andrew D Price | 17 |
| 10 | Joshua M Gerben | 17 |
Top Trademark Attorneys — businesses in Maryland, 2015
| # | Attorney | Registrations |
|---|---|---|
| 1 | Rebecca Liebowitz | 44 |
| 2 | Raj Abhyanker | 40 |
| 3 | Jonathan R Wachs | 29 |
| 4 | Matthew H Swyers | 25 |
| 5 | Kimberly S Grimsley | 21 |
| 6 | Joshua M Gerben | 18 |
| 7 | Ned T Himmelrich | 18 |
| 8 | Angela Y Dai | 17 |
| 9 | Adam Zarren | 16 |
| 10 | Kevin P Ferguson | 16 |
Top Trademark Attorneys — businesses in Maryland, 2014
| # | Attorney | Registrations |
|---|---|---|
| 1 | Raj Abhyanker | 36 |
| 2 | Matthew H Swyers | 35 |
| 3 | Kimberly S Grimsley | 27 |
| 4 | Jonathan R Wachs | 25 |
| 5 | Ned T Himmelrich | 21 |
| 6 | Rebecca A Liebowitz | 17 |
| 7 | Rebecca Liebowitz | 15 |
| 8 | Eric J Von Vorys | 13 |
| 9 | Kevin Oliveira | 13 |
| 10 | Gregory M Stone | 12 |
Top Trademark Attorneys — businesses in Maryland, 2013
| # | Attorney | Registrations |
|---|---|---|
| 1 | Matthew H Swyers | 35 |
| 2 | Raj Abhyanker | 31 |
| 3 | Jonathan R Wachs | 28 |
| 4 | Ned T Himmelrich | 23 |
| 5 | Angela Y Dai | 21 |
| 6 | Ann K Ford | 18 |
| 7 | Naresh Kilaru | 17 |
| 8 | Kimberly S Grimsley | 15 |
| 9 | Rebecca A Liebowitz | 15 |
| 10 | E Scott Johnson | 13 |
Top Trademark Attorneys — businesses in Maryland, 2012
| # | Attorney | Registrations |
|---|---|---|
| 1 | Raj Abhyanker | 28 |
| 2 | Matthew H Swyers | 26 |
| 3 | Kimberly S Grimsley | 25 |
| 4 | Jonathan R Wachs | 22 |
| 5 | Eric J Von Vorys | 18 |
| 6 | Sherry H Flax | 17 |
| 7 | Naresh Kilaru | 16 |
| 8 | Clarie W Desmond | 15 |
| 9 | Ned T Himmelrich | 15 |
| 10 | Rebecca Liebowitz | 15 |
Top Trademark Attorneys — businesses in Maryland, 2011
| # | Attorney | Registrations |
|---|---|---|
| 1 | Naresh Kilaru | 54 |
| 2 | Kimberly S Grimsley | 26 |
| 3 | Jonathan R Wachs | 25 |
| 4 | Clarie W Desmond | 24 |
| 5 | Ned T Himmelrich | 17 |
| 6 | Kelly L Williams | 16 |
| 7 | Raj Abhyanker | 16 |
| 8 | Angela Y Dai | 12 |
| 9 | Dana O Lynch | 11 |
| 10 | Karl Wm Means | 11 |
Top Trademark Attorneys — businesses in Maryland, 2010
| # | Attorney | Registrations |
|---|---|---|
| 1 | Naresh Kilaru | 29 |
| 2 | Ned T Himmelrich | 19 |
| 3 | Rebecca Liebowitz | 19 |
| 4 | Dana O Lynch | 16 |
| 5 | Clarie W Desmond | 15 |
| 6 | Jon A Schiffrin | 15 |
| 7 | Kelly L Williams | 15 |
| 8 | Rebecca A Liebowitz | 15 |
| 9 | E Scott Johnson | 13 |
| 10 | Joshua A Glikin | 13 |
Top Trademark Attorneys — businesses in Maryland, 2009
| # | Attorney | Registrations |
|---|---|---|
| 1 | Clarie W Desmond | 22 |
| 2 | Kelly L Williams | 21 |
| 3 | Jonathan R Wachs | 17 |
| 4 | Rebecca Liebowitz | 15 |
| 5 | Royal W Craig | 14 |
| 6 | E Scott Johnson | 13 |
| 7 | Scott B Markow | 13 |
| 8 | David R Schaffer | 11 |
| 9 | Gregory M Stone | 11 |
| 10 | Adan Ayala | 10 |
Top Trademark Attorneys — businesses in Maryland, 2008
| # | Attorney | Registrations |
|---|---|---|
| 1 | Susan D Berney-Key | 89 |
| 2 | Mark Harrison | 25 |
| 3 | Ned T Himmelrich | 24 |
| 4 | Eric J Von Vorys | 22 |
| 5 | E Scott Johnson | 19 |
| 6 | Sherry H Flax | 18 |
| 7 | Clarie W Desmond | 16 |
| 8 | Dana O Lynch | 16 |
| 9 | Camille M Miller | 15 |
| 10 | Kelly L Williams | 15 |
Top Trademark Attorneys — businesses in Maryland, 2007
| # | Attorney | Registrations |
|---|---|---|
| 1 | Sherry H Flax | 29 |
| 2 | E Scott Johnson | 26 |
| 3 | Ned T Himmelrich | 25 |
| 4 | David R Schaffer | 15 |
| 5 | Kenneth D Suzan | 14 |
| 6 | Eric J Von Vorys | 13 |
| 7 | John Yun | 12 |
| 8 | Jon A Schiffrin | 12 |
| 9 | Mark Harrison | 12 |
| 10 | Royal W Craig | 12 |
Top Trademark Attorneys — businesses in Maryland, 2006
| # | Attorney | Registrations |
|---|---|---|
| 1 | Lynne M J Boisineau | 20 |
| 2 | Ned T Himmelrich | 17 |
| 3 | Naresh Kilaru | 16 |
| 4 | Sherry H Flax | 14 |
| 5 | David R Schaffer | 11 |
| 6 | Edward J Kondracki | 11 |
| 7 | Eric J Von Vorys | 11 |
| 8 | Michael D Oliver | 10 |
| 9 | Vasilios Peros | 10 |
Top Trademark Attorneys — businesses in Maryland, 2005
| # | Attorney | Registrations |
|---|---|---|
| 1 | Naresh Kilaru | 19 |
| 2 | Ned T Himmelrich | 15 |
| 3 | Christopher J Day | 14 |
Top Trademark Attorneys — businesses in Maryland, 2004
| # | Attorney | Registrations |
|---|---|---|
| 1 | Naresh Kilaru | 22 |
| 2 | Sherry H Flax | 20 |
| 3 | Ned T Himmelrich | 16 |
| 4 | Lynne M J Boisineau | 13 |
| 5 | Karl Wm Means | 11 |
| 6 | Robert M Gamson | 10 |
Top Trademark Attorneys — businesses in Maryland, 2003
| # | Attorney | Registrations |
|---|---|---|
| 1 | Naresh Kilaru | 26 |
| 2 | Ned T Himmelrich | 16 |
| 3 | Deborah J Westervelt | 15 |
| 4 | Mark B Harrison | 15 |
| 5 | Susan P Christoff | 15 |
| 6 | Eric J Von Vorys | 14 |
| 7 | E Scott Johnson | 12 |
| 8 | Ann K Ford | 11 |
| 9 | Karl Wm Means | 11 |
| 10 | Sherry H Flax | 11 |
Top Trademark Attorneys — businesses in Maryland, 2002
| # | Attorney | Registrations |
|---|---|---|
| 1 | Sherry H Flax | 28 |
| 2 | Ned T Himmelrich | 22 |
| 3 | Naresh Kilaru | 20 |
| 4 | Dana O Lynch | 14 |
| 5 | S Keith Moulsdale | 14 |
| 6 | Ann K Ford | 13 |
| 7 | E Scott Johnson | 13 |
| 8 | Karl Wm Means | 13 |
| 9 | Michael D Oliver | 13 |
| 10 | Lynne M J Boisineau | 11 |
Top Trademark Attorneys — businesses in Maryland, 2001
| # | Attorney | Registrations |
|---|---|---|
| 1 | Ned T Himmelrich | 16 |
| 2 | Michael D Oliver | 13 |
| 3 | Paul W Martin | 13 |
| 4 | Vincent M Amberly | 13 |
| 5 | Dana O Lynch | 12 |
| 6 | Sherry H Flax | 12 |
| 7 | E Scott Johnson | 11 |
| 8 | Royal W Craig | 11 |
| 9 | Naresh Kilaru | 10 |
Top Trademark Attorneys — businesses in Maryland, 2000
| # | Attorney | Registrations |
|---|---|---|
| 1 | Ned T Himmelrich | 17 |
| 2 | David M Abrahams | 14 |
| 3 | Arthur J Debaugh | 13 |
| 4 | Karl Wm Means | 12 |
| 5 | Peter G Mack | 12 |
| 6 | Rebecca Liebowitz | 12 |
| 7 | Morton J Rosenberg | 11 |
| 8 | Paul W Martin | 11 |
| 9 | Robert M Gamson | 10 |
Top Trademark Attorneys — businesses in Maryland, all years
| # | Attorney | Registrations |
|---|---|---|
| 1 | Rebecca Liebowitz | 631 |
| 2 | Ned T Himmelrich | 455 |
| 3 | Kimberly S Grimsley | 422 |
| 4 | Naresh Kilaru | 405 |
| 5 | Jonathan R Wachs | 323 |
| 6 | Raj Abhyanker | 303 |
| 7 | Eric J Von Vorys | 258 |
| 8 | Gregory M Stone | 239 |
| 9 | E Scott Johnson | 234 |
| 10 | Rosezena J Pierce | 216 |
How this list is compiled
TrademarkToolbox Top Trademark Attorney lists are not a ranking of attorney quality. Rank is based solely on the number of trademark registrations that list the attorney as attorney of record, for applications tied to businesses in Maryland. It measures filing volume, nothing else.
Volume reflects firm size, practice model and client mix. A solo practitioner handling a small number of complex matters will rank below a high-volume filing practice, and that says nothing about the quality of either. These lists are not an endorsement, a recommendation, or a substitute for your own due diligence when choosing counsel.
Data comes from USPTO public records as indexed by TrademarkToolbox. Attorney names are matched conservatively: we do not merge similar names, so an attorney who appears in the record under more than one form may be undercounted. Counts include registered marks only, by registration year. Full methodology · Request a correction or removal