Who files the most oppositions and cancellations at the Trademark Trial and Appeal Board, from USPTO records.
If you are choosing a name, this is a list worth knowing. A conflict is a different proposition
when the mark's owner opposes routinely than when they have never filed a proceeding. That does not make
opposing wrong — trademark owners are obliged to police their marks, and rights weaken if they do not
— but it does change the odds that a borderline name draws a challenge.
Lists like this are sometimes called “trademark bullies”. We do not use that term
here: filing volume tracks portfolio size far more closely than it tracks aggression, and nothing in this data
supports a claim about any company's conduct.
Most active enforcers — all time
#
Party
Proceedings filed
Extensions
1
New Era Cap Co., Inc.
1,295
85
2
On Clouds GmbH
1,229
20
3
MCDONALD'S CORPORATION
1,106
61
4
MATTEL, INC.
919
94
5
HUGO BOSS AG
846
155
6
MONSTER ENERGY COMPANY
788
55
7
Trek Bicycle Corporation
756
16
8
Caterpillar Inc.
674
6
9
Salesforce, Inc.
666
73
10
GAP (Apparel), LLC
644
24
11
Duke University
615
63
12
ALO, LLC
605
25
13
Fuente Marketing
599
37
14
APPLE INC.
576
78
15
Adidas AG, Adidas International Marketing BV
545
0
16
adidas International Marketing BV and adidas AG
512
0
17
Chicago Cubs Baseball Club, LLC
503
25
18
Eden Foods
486
12
19
HACHETTE FILIPACCHI PRESSE
460
20
20
PEI LICENSING, LLC
449
41
21
Snap Inc
404
133
22
Sinclair Oil LLC
342
37
23
YETI Coolers, LLC
325
3
24
Gabrielle Studio, Inc.
314
24
25
RDSTR IP 2 AB
313
0
Most active enforcers — 2026
#
Party
Proceedings filed
Extensions
1
New Era Cap LLC
1,159
85
2
MCDONALD'S CORPORATION
993
61
3
HUGO BOSS AG
739
155
4
MATTEL, INC.
709
93
5
Trek Bicycle Corporation
672
16
6
Duke University
615
61
7
On Clouds GmbH
602
20
8
Caterpillar Inc.
549
6
9
GAP (Apparel), LLC
537
24
10
Salesforce, Inc.
523
71
11
MONSTER ENERGY COMPANY
511
52
12
ALO, LLC
472
25
13
Eden Foods
426
12
14
Fuente Marketing
417
35
15
adidas AG and adidas International Marketing BV
377
0
16
HACHETTE FILIPACCHI PRESSE
357
20
17
APPLE INC.
328
75
18
Snap Inc
293
131
19
POP MART (SINGAPORE) HOLDING PTE. LTD.
292
25
20
adidas International Marketing BV, adidas AG
271
0
21
Gabrielle Studio, Inc.
270
24
22
Hims, Inc.
266
29
23
General Electric Company
266
7
24
Chicago Cubs Baseball Club, LLC
243
24
25
Patagonia, Inc.
233
11
Most active enforcers — 2025
#
Party
Proceedings filed
Extensions
1
PEI Licensing, LLC
187
0
2
On Clouds GmbH
167
0
3
adidas International Marketing BV and adidas AG
146
0
4
Sinclair Oil LLC
144
0
5
Salesforce, Inc.
143
2
6
Astral IP Enterprises Ltd
135
0
7
Major League Baseball Properties, Inc.
127
0
8
Office of the Commissioner of Baseball
124
0
9
ALO, LLC
121
0
10
MATTEL, INC.
117
1
11
Caterpillar Inc.
117
0
12
Chicago Cubs Baseball Club, LLC
116
1
13
Fuente Marketing Ltd.
114
2
14
RDSTR IP 2 AB
107
0
15
McDonald's Corporation
100
0
16
YETI Coolers, LLC
94
0
17
Apple Inc.
84
3
18
Angels Baseball LP
84
0
19
Trek Bicycle Corporation
84
0
20
Insurance Services Office, Inc.
80
0
21
Beiersdorf AG
77
0
22
New Era Cap LLC
74
0
23
Adidas AG, Adidas International Marketing BV
73
0
24
1661, Inc
71
0
25
1661, Inc. d/b/a GOAT
66
0
Most active enforcers — 2024
#
Party
Proceedings filed
Extensions
1
On Clouds GmbH
327
0
2
Chicago Cubs Baseball Club, LLC
144
0
3
BBK Tobacco & Foods, LLP
94
0
4
Angels Baseball LP
84
0
5
Apple Inc.
84
0
6
Major League Baseball Properties, Inc.
71
0
7
adidas International Marketing BV and adidas AG
69
0
8
Deutsche Telekom AG
60
0
9
Mattel, Inc.
59
0
10
Monster Energy Company
57
0
11
Gap (Apparel), LLC
55
0
12
Massachusetts Institute of Technology
52
0
13
Duckhorn Wine Co.
50
0
14
OPENAI OPCO, LLC
46
0
15
Hypebeast Hong Kong Limited
43
0
16
Panda Restaurant Group, Inc.
43
0
17
Sinclair Oil LLC
42
0
18
Viking River Cruises (Bermuda) Ltd
40
0
19
Chicago Cubs Baseball Club, LLC, The Cincinnati Reds LLC
37
0
20
Ford Motor Company
37
0
21
Middle-earth Enterprises, LLC
36
0
22
Hachette Filipacchi Presse
34
0
23
OFF-WHITE LLC
33
0
24
PEI Licensing, LLC
33
0
25
Vitasoy International Holdings Limited
33
0
Most active enforcers — 2023
#
Party
Proceedings filed
Extensions
1
HUGO BOSS AG
98
0
2
Monster Energy Company
98
0
3
adidas AG and adidas International Marketing BV
71
0
4
Hugo Boss Trade Mark Management GmbH & Co. KG
49
0
5
On Clouds GmbH
49
0
6
Subway US IP Holder LLC
45
0
7
Meta Platforms, Inc.
42
0
8
Starbucks Corporation
40
0
9
PEI Licensing, LLC
36
0
10
PetSmart Home Office LLC
36
0
11
Mattel, Inc.
34
0
12
Empower Annuity Insurance Company of America
33
0
13
Deutsche Telekom AG
30
0
14
Hachette Filipacchi Presse
30
0
15
Xactware Solutions, Inc.
30
0
16
ITG Cigars Inc.
29
0
17
adidas International Marketing BV, adidas AG
26
0
18
AMD Medicom Inc.
26
0
19
Fuente Marketing Ltd.
25
0
20
Metro-Goldwyn-Mayer Studios Inc.
22
0
21
Apple Inc.
21
0
22
Sleep Number Corporation
21
0
23
Jeremy Cahen
20
0
24
OMS Investments, Inc.
20
0
25
Skims Body, Inc.
20
0
Most active enforcers — 2022
#
Party
Proceedings filed
Extensions
1
On Clouds GmbH
84
0
2
New Era Cap, LLC
34
0
3
Empower Annuity Insurance Company of America
32
0
4
Beiersdorf AG
25
0
5
TRU Kids Inc.
20
0
6
BBK Tobacco & Foods, LLP
19
0
7
Greek National Tourism Organization (GNTO/EOT)
19
0
8
Colorado Rockies Baseball Club, Ltd.
16
0
9
Breeze Smoke LLC
13
0
10
The Coca-Cola Company
13
0
11
American Airlines, Inc. & AAdvantage Loyalty IP Ltd.
12
0
12
Compassion International, Inc.
12
0
13
Sparta Beverage LLC
12
0
14
Vivian Brown
11
0
15
Blenders Eyewear, LLC
10
0
16
Elemis USA, Inc.
10
0
17
Lazy Dog Restaurants, LLC
10
0
18
Lenovo PC International
10
0
19
Virtue Labs, LLC
10
0
20
The Financial Times Limited
9
0
21
ITG Cigars Inc.
9
0
22
Cleveland Guardians Baseball Company, LLC
8
0
23
Jabari Shelton
8
0
24
Members 1st Federal Credit Union
8
0
25
PRL USA Holdings, Inc.
8
0
Most active enforcers — 2021
#
Party
Proceedings filed
Extensions
1
Delta Air Lines, Inc.
174
0
2
BBK Tobacco & Foods, LLP
43
0
3
Apple Inc.
37
0
4
Lenovo PC International
30
0
5
Adidas America, Inc., Adidas International Marketing BV, and Adidas AG
27
0
6
Under Armour, Inc.
22
0
7
Fuente Marketing Ltd.
18
0
8
Xactware Solutions, Inc.
18
0
9
New York Yankees Partnership
17
0
10
Lenovo (Singapore) Pte. Ltd. and Lenovo PC International Limited
16
0
11
Coalcity Social Club Inc., Dallas-Fort Worth-Coal City
14
0
12
TRU Kids Inc.
14
0
13
Blacks in Technology International
11
0
14
Beats Electronics, LLC
10
0
15
Suyen Corporation
10
0
16
UHS of Delaware, Inc.
10
0
17
Growmark, Inc.
9
0
18
Manufacturera de Botas Cuadra S.A. de C.V.
9
0
19
Formidium Corp.
7
0
20
Nomad Goods, Inc.
7
0
21
Richard Johnson
7
0
22
Inhale, Inc.
6
0
23
Lasting Designs, LLC d/b/a Maida's
6
0
24
O&M Halyard, Inc.
6
0
25
RIDGID, Inc.
6
0
Most active enforcers — 2020
#
Party
Proceedings filed
Extensions
1
Zuru LLC and Zuru Inc.
42
0
2
BBK Tobacco & Foods, LLP
34
0
3
adidas America, Inc., adidas International Marketing BV and adidas AG
29
0
4
Garan Services Corp.
28
0
5
New Era Cap Co., Inc.
28
0
6
Monster Energy Company
25
0
7
Peninsula Components, Inc. dba Pencom
18
0
8
Growmark, Inc
13
0
9
Hummus Holdings LLC
12
0
10
Impossible X LLC
11
0
11
Lenovo PC International
11
0
12
Motorspot, Inc.
11
0
13
UHS of Delaware, Inc.
10
0
14
Anastasia Beverly Hills, LLC
9
0
15
Hub Group, Inc.
9
0
16
The Lawfare Project Inc.
9
0
17
Henri Selmer Paris
8
0
18
JDTMK LLC
8
0
19
Mars, Incorporated
8
0
20
Alfwear Inc. (DBA KÜHL)
6
0
21
Coulter Ventures, LLC
5
0
22
Easy Reach Supply, LLC
5
0
23
Constellation Brands U.S. Operations Inc.
4
0
24
Creative Mobile OU
4
0
25
Disney Enterprises, Inc.
4
0
Most active enforcers — 2019
#
Party
Proceedings filed
Extensions
1
Chapter 4 Corp. DBA Supreme
30
0
2
Growmark, Inc.
24
0
3
Apple Inc.
22
0
4
May Flower International, Inc.
18
0
5
Alfwear Inc.
14
0
6
Kate Spade LLC
14
0
7
American Dental Association
13
0
8
Majestics
12
0
9
Le-Vel Brands, LLC
10
0
10
Coulter Ventures, LLC
9
0
11
Valvoline Licensing & Intellectual Property LLC and VGP IPCO LLC
8
0
12
Constellation Brands U.S. Operations Inc.
7
0
13
Bravado International Group Limited
6
0
14
Jockey International, Inc.
5
0
15
Cacique Foods LLC
4
0
16
Gaia, Inc.
4
0
17
AB-IP Holdco LLC
4
0
18
Macmillan Publishing Group LLC
4
0
19
Neolife International, LLC
4
0
20
P.C. Richard & Son Long Island Corporation
4
0
21
Playtika Ltd. and Playtika UK - House of Fun Limited
Corporacion Habanos, S.A. and Empresa Cubana del Tabaco
4
0
10
Multi Access Limited
3
0
11
Wai L. Wong
3
0
12
Greater Orlando Aviation Authority
2
0
13
Corporacion Cuba Ron, S.A.
1
0
14
Federal Reserve Bank of Atlanta, Federal Reserve Bank of Chicago, Federal Reserve Bank of St. Louis, Federal Reserve Bank of Kansas City, Federal Reserve Bank of Boston, Federal Reserve Bank of New York, Federal Reserve Bank of Philadelphia, Federal
1
0
15
Guantanamera Cigar Co, Inc.
1
0
16
Software Freedom Law Center
1
0
Most active enforcers — 2016
#
Party
Proceedings filed
Extensions
1
Philip Morris USA Inc.
23
0
2
RCN Telecom Services, LLC
6
0
3
Marriott International, Inc.
5
0
4
LLC Innovative Technologies
1
0
Most active enforcers — 2015
#
Party
Proceedings filed
Extensions
1
Calvin Klein Trademark Trust, and Calvin Klein, Inc.
25
0
2
Hatch Chile Company, Inc.
8
0
3
Hubert Hansen Intellectual Property Trust
4
0
4
Cirrus Aviation Services, LLC
2
0
5
Patsy's Brand, Inc.
2
0
6
OFG Bancorp
1
0
Most active enforcers — 2014
#
Party
Proceedings filed
Extensions
1
ESP Shibuya Enterprises, Inc. and Cordoba Music Group, Inc., Collings Guitars, Inc., Roman Guitars, LLC, by substitution for Ed Roman Enterprises, Inc., Armadillo Distribution Enterprises, Inc., Schecter Guitar Research, Inc., Westheimer Corporation,
5
0
2
SFM, LLC
3
0
3
Six Continents Hotels, Inc.
3
0
4
Corporacion Habanos, S.A.
2
0
5
Brothers of the Wheel MC Executive Council, Inc.
1
0
6
Industria de Alimentos Zenu S.A.S.
1
0
7
Reef Residences Resort Management Ltd
1
0
Most active enforcers — 2012
#
Party
Proceedings filed
Extensions
1
Australian Therapeutic Supplies Pty Ltd.
2
0
2
RCN Television, S.A.
2
0
Most active enforcers — 2011
#
Party
Proceedings filed
Extensions
1
Hybrid Promotions, LLC
1
0
2
JAKKS Pacific, Inc
1
0
3
RCN Television, S.A.
1
0
Most active enforcers — 2010
#
Party
Proceedings filed
Extensions
1
RCN Televisión, S.A.
8
0
2
RCN Television, S.A.
2
0
Most active enforcers — 2009
#
Party
Proceedings filed
Extensions
1
RCN Television, S.A.
7
0
2
Shingle Springs Band of Miwok Indians
1
0
Most active enforcers — 2008
#
Party
Proceedings filed
Extensions
1
RCN Telecom Services, Inc. and RCN Telecom Services, LLC
23
0
2
Six Continents Hotels, Inc
8
0
Most active enforcers — 2005
#
Party
Proceedings filed
Extensions
1
Allied Domecq International Holdings BV
1
0
Most active enforcers — 2003
#
Party
Proceedings filed
Extensions
1
Bacardi & Company Limited
1
0
Most active enforcers — 2002
#
Party
Proceedings filed
Extensions
1
Barcardi & Company Limited
1
0
Most active enforcers — 2001
#
Party
Proceedings filed
Extensions
1
Bacardi & Company Limited and Bacardi U.S.A., Inc.
1
0
Most active enforcers — 2000
#
Party
Proceedings filed
Extensions
1
Bacardi & Company Limited and Bacardi U.S.A., Inc.
1
0
2
General Cigar Co., Inc.
1
0
Most recently filed proceedings
The latest oppositions and cancellations in our index.
RMS International USA, Inc. v Unknown
ex parte appeal · 20261023
NB44, LLC v Unknown
ex parte appeal · 20261023
FNA Group, Inc. v Unknown
ex parte appeal · 20261023
Spartan Arms and Range Supplies LLC v Modern Warriors, LLC
cancellation · 20261023
· serial 90630237
Swiss Lab Concept SA v Beijing Lanjingling E-commerce Co., Ltd.
cancellation · 20261023
· serial 98370406
BAODING HUARONG PAPER MILL v QIAN YE
cancellation · 20261023
· serial 90375960
WOLFPACK ADVISING, LLC v GBL Systems Corporation
cancellation · 20261023
· serial 86266346
LC Trademarks, Inc., Little Caesar Enterprises, Inc. v Bernard Pizza Company
cancellation · 20261023
· serial 97096796
1350 COLLINS OWNER LLC v Alsamawi, Ali
cancellation · 20261023
· serial 97756943
MB CYRDAS v Yongjiu Liu
cancellation · 20261023
· serial 99483398
What this counts, and what it does not
These lists rank parties by the number of proceedings they have filed at the Trademark Trial
and Appeal Board, taken from USPTO public records. Nothing here is a finding about anyone's conduct.
Volume mostly tracks portfolio size. A company holding thousands of registrations will oppose far more often
than one holding a handful, and the overwhelming majority of oppositions are ordinary, legitimate enforcement
of rights the owner is obliged to police. A high position on this list is not evidence of overreach, and we
make no such claim about any party named.
Extensions of time to oppose are counted separately from oppositions throughout. They are roughly a third of
all filings at the Board and are not themselves proceedings.
Methodology ·
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