This content is from: Patent cooperation treaty (PCT)

Rankings: The top firms for PCT work this year

Managing IP’s annual survey ranks the top Patent Cooperation Treaty filers in the main patenting jurisdictions. Data compiled by CPA Global

The tables below list the top Patent Cooperation Treaty (PCT) filing firms according to the number of PCT applications filed for national stage entry in 2019.

The tables are based on details of PCT applications available in software tool Filing Analytics, owned by CPA Global, part of Clarivate. To compile the tables, PCT applications with a priority date between January 1 and December 31 were extracted. These correspond to applications which entered national phase from January 1 to December 31 2019.

Once extracted these applications were sorted according to the law firm or patent agency that filed the PCT application, based on the "agent name" and "agent address" categories in the PCT form. A manual checking process ensures all applications filed by each firm are included, even when it used different names or addresses during the period in question.

The firms are listed in order of the number of applications filed in their jurisdiction. Firms with offices in more than one country may be included in the table in each jurisdiction. Firms are compiled based on how they are listed in the patent application.

The worldwide table ranks the firms with the most PCT applications globally. This compiles the filings of a firm's various offices around the world, increasing the rankings for firms in several locations.

Managing IP would like to thank CPA Global for compiling and verifying the data on which these tables are based. CPA Global is the world's leading IP management and technology company. Its IP One Data empowers customers with comprehensive, verified and reliable IP data.

The tables are provided for information only. Managing IP does not recommend or endorse any particular firms for PCT or other work.

Australia

RankingFirmFilings
1Spruson & Ferguson184
2Davies Collison Cave150
3Griffith Hack127
4FB Rice & Co115
5Phillips Ormonde & Fitzpatrick94
6FPA Patents (Freehills)77
7Wrays62
8Shelston IP48
9Watermark47
10Madderns41

Brazil

Ranking Firm Filings
1Dannemann Siemsen Advogados47
2Gusmão & Labrunie38
3Vilage Marcas E Patentes29
4Atem & Remer Advogados e Consultores27
5Kasznar Leonardos Propriedade Intelectual16

Canada

Ranking Firm Filings
1Gowling WLG208
2Norton Rose185
3Bereskin & Parr178
4Borden Ladner Gervais98
5Ridout & Maybee95
6Smart & Biggar86
7Robic86
8BCF76
9ADE & Company59
10Oyen Wiggs Green & Mutala49

China

Ranking Firm Filings
1Advance China I.P. Law Office (ACIP)
 广州华进联合专利商标代理有限公司
1637
2Scihead Patent Agent
 广州三环专利代理有限公司
1634
3Tsingyihua IP1331
4Beijing Beyond Attorneys at Law
北京品源专利代理有限公司
1325
5Bestipr Intellectual Property Law Firm
 北京博思佳知识产权代理有限公司
1037
6Dragon IP Law Firm
 北京银龙知识产权代理有限公司
1028
7China PAT IP Office
北京派特恩知识产权代理事务所(普通合伙)
903
8Purplevine IP Group
 紫藤知识产权集团
845
9China Wispro IP
 深圳市威世博知识产权代理事务所(普通合伙)
798
10Beijing Sanyou IP Agency
 北京三友知识产权代理有限公司
793
11TDIP & Partners (Beijing Tongdaxinheng)749
12Unitalen Attorneys At Law
 北京集佳知识产权代理有限公司
735
13Liu Shen & Associates
北京市柳沈律师事务所
716
14Tee & Howe IP Attorney
北京天昊联合知识产权代理有限公司
705
15Cenfo Intellectual Property Agency674
16China Science Patent & Trademark Agent
中科专利商标代理有限责任公司
653
17Leader Patent & Trademark Firm
北京同立钧成知识产权代理有限公司
652
18Kangxin Partners
北京康信知识产权代理有限责任公司
640
19Longsun Lead IP
北京龙双利达知识产权代理有限公司
616
20ZBSD Patent
北京中博世达专利商标代理有限公司
589
21Chofn IP562
22Beijing San Gao Yong Xin IP
 北京三高永信知识产权代理有限责任公司
557
23Shenzhen Zhongyi Patent & Trademark Office
 深圳中一专利商标事务所
499
24AFD China IP Law Office
北京安信方达知识产权代理有限公司
484
25Shenzhen World Intellectual Property Agency465

Finland

Ranking Firm Filings
1Berggren Group188
2Kolster Oy Ab117
3Seppo Laine Oy108
4Papula-Nevinpat80
5Boco IP41

France

Ranking Firm Filings
1Cabinet Lavoix410
2Cabinet Plasseraud346
3Cabinet Beau de Loménie330
4REGIMBEAU320
5Cabinet Germain & Maureau198
6Marks & Clerk France185
7BREVALEX166
8Nony & Associés163
9Cabinet Lhermet La Bigne & Remy137
10IP TRUST innovation136
11Gevers France118
12Novagraaf108
13Cabinet Becker & Associés106
14Coralis & Harle Phelip102
15Santarelli89

Germany

Ranking Firm Filings
1Epping Hermann Fischer416
2Hoffmann Eitle219
3Schoppe Zimmermann Stöckeler & Zinkler194
4Eisenführ Speiser194
5Cohausz & Florack182
6Grünecker Kinkeldey Stockmair & Schwanhäusser177
7Zimmermann & Partner168
8Maiwald Patentanwalts154
9Meissner Bolte & Partner136
10Gramm Lins & Partner129
11Boehmert & Boehmert124
12Dreiss Patentanwälte121
13Loesenbeck Specht Dantz121
14Boehmert & Boehmert.114
15Hoeger Stellrecht & Partner113

India

Ranking Firm Filings
1Khurana & Khurana130
2K & S Partners81
3LexOrbis IP Practice79
4R K Dewan & Co.71
5Lakshmikumaran & Sridharan61
6S. Majumdar & Co.61
7Gopakumar Nair Associates50
8Krishna & Saurastri Associates33
9DePenning & DePenning23
10Rahul Chaudhry & Partners22

Israel

Ranking Firm Filings
1Ehrlich & Fenster223
2Reinhold Cohn Group172
3Pearl Cohen Zedek Latzer132
4Geyra Gassner IP Law115
5Luzzatto & Luzzatto81
6Webb & Co.66
7D. Kligler I.P. Services65
8Dr. Mark Friedman Ltd.64
9Dr. Eyal Bressler52
10Ben-Ami & Associates45

Italy

Ranking Firm Filings
1Jacobacci & Partners315
2Bugnion277
3Studio Torta187
4Barzano' & Zanardo133
5GLP128
6Modiano & Partners126
7Società Italiana Brevetti (SIB)104
8Notarbartolo & Gervasi83
9Brunacci & Partners75
10Cantaluppi & Partners75

Japan

Ranking Firm Filings
1Shiga International Patent Office1864
2Sakai International Patent Office
 特許業務法人酒井国際特許事務所
1635
3Soei Patent & Law Firm929
4TAIYO NAKAJIMA & KATO699
5HARAKENZO World Patent & Trademark699
6ITOH International Patent Office689
7SUGIMURA & Partners640
8Aoyama & Partners639
9Fukami Patent Office621
10NII Patent Firm509
11S & S International (Suzuye)453
12Inamoto & Associates450
13Eikoh Patent Firm438
14Kisa Patent & Trademark Firm427
15Miyoshi International Patent Office412
16TMI Associates396
17S. Soga & Co.374
18Shobayashi International Patent & Trademark Office367
19Shinsei Patent Office356
20Seiwa Patent & Law347

Netherlands

Ranking Firm Filings
1V.O. Vereenigde260
2Nederlandsch Octrooibureau251
3Arnold & Siedsma168
4Exter Polak & Charlouis (EP&C)119
5Algemeen Octrooi- en Merkenbureau AOMB99
6De Vries & Metman49
7Los & Stigter44
8Vriesendorp & Gaade Octrooibureau B.V.32
9Patentwerk29
10Hoyng Rokh Monegier24

Russia

Ranking Firm Filings
1Kotlov, Dmitry Vladimirovich124
2Gorodissky & Partners71
3KUPTSOVA, Elena Vyacheslavovna31
4PATENTICA26
5YUS20

South Korea

Ranking Firm Filings
1Y. P. Lee, Mock & Partners808
2Bae Kim & Lee700
3YOU ME Patent & Law Firm556
4Envision Patent & Law Firm427
5YOON & LEE International Patent & Law Firm415
6KBK & Associates400
7Phil & Onzi Int'l Patent & Law Firm358
8Lee & Kwon Intellectual Law Group348
9Saeon Patent & Law Firm326
10NAWOO Patent & Law Firm323
11K.J. Lee Patent & Trademark Law Firm
(미화빌딩 이건주특허법률사무소)
302
12DANA International Patent and Law Firm288
13SunYoung International Patent & Law Firm284
14Selim Intellectual Property Law Firm275
15ROYAL Patent & Law Firm255

Spain

Ranking Firm Filings
1PONS Patentes y Marcas, S.L.105
2ABG Patentes94
3Herrero & Asociados92
4ZBM Patents85
5Ungría Patentes y Marcas70

Sweden

Ranking Firm Filings
1Awapatent271
2Kransell & Wennborg195
3Zacco158
4Brann111
5Ström & Gulliksson100

Switzerland

Ranking Firm Filings
1Isler & Pedrazzini84
2Rentsch & Partner84
3P&TS IP62
4Hepp Wenger Ryffel49
5Andre Roland46
6Latscha Schöllhorn Partner44
7E Blum & Co42
8Frei Patent Attorneys39
9Givaudan Patents34
10PGA srl33

UK

Ranking Firm Filings
1D Young & Co.344
2Marks & Clerk326
3Dehns275
4HGF (nee Harrison Goddard Foote)274
5Mewburn Ellis263
6Reddie & Grose176
7Mathys & Squire173
8J.A. Kemp173
9Venner Shipley160
10Murgitroyd & Company147
11Appleyard Lees147
12Gill Jennings & Every146
13Barker Brettell146
14Haseltine Lake145
15Withers & Rogers144
16Page White & Farrer119
17Carpmaels & Ransford106
18UDL (nee Urquhart-Dykes & Lord)104
19EIP101
20Boult Wade Tennant97
21Potter Clarkson97
22Kilburn & Strode91
23Wilson Gunn62
24Keltie60
25Forresters58

US

Ranking Firm Filings
1Fish & Richardson1159
2Kilpatrick Townsend & Stockton790
3Foley & Lardner LLP718
4Wilson Sonsini Goodrich & Rosati602
5Schwegman Lundberg & Woessner561
6Knobbe Martens Olson & Bear561
7Patterson & Sheridan523
8Wolf Greenfield & Sacks495
9Holland & Hart486
10Dority & Manning390
11Cooley LLP372
12Harness Dickey & Pierce360
13Perkins Coie353
14Womble Carlyle Sandridge & Rice317
15Cantor Colburn311
16Marshall Gerstein & Borun292
17McDonnell Boehnen Hulbert & Berghoff290
18Haynes & Boone286
19Lee & Hayes262
20Schwabe Williamson & Wyatt245
21Michael Best & Friedrich238
22Meunier Carlin & Curfman234
23Fenwick & West227
24Morrison & Foerster221
25Norton Rose Fulbright220
26Dinsmore215
27Thomas Horstemeyer212
28Morgan Lewis & Bockius212
29Merchant & Gould208
30McCarter & English204

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