2026 Patent Quality Rankings: Top 10 Firms in Each USPTO Tech Center

Patent Bots recently announced its latest Patent Quality Rankings of top patent law firms. Last month, we unveiled the Top 50 Patent Firms. 

Now, we're excited to share the Top 10 firms in each USPTO Tech Center. 

As we've done every year since 2020, we used our advanced machine learning software to review every patent issued – more than 327,000 this year! – by the USPTO in the past year. 

We then ranked patent firms in each Tech Center based on the average number of numbering, antecedent basis, and word support errors detected in their patents. Our rankings are based only on the above errors and do not address many other important aspects of patent quality.

More than 280,000 (86%) of patents issued contained at least one detectable error. If your firm doesn't use automated proofreading, try Patent Bots FREE for 14 days.

Now, on to the rankings! 

2026 Patent Quality Rankings: Top 10 Firms by USPTO Tech Center

Top 10 Patent Firms in Tech Center 1600

Technology Center 1600 covers patent applications in the fields of Biotechnology and Organic Chemistry. Congratulations to Gowling WLG for earning the top Patent Bots Quality Ranking in Tech Center 1600 for 2026.

RANK	FIRM	COUNT	SCORE
1	Gowling WLG (Canada) LLP	94	100
2	Parker Highlander PLLC	52	93.8
3	Mueting Raasch Group	57	93.6
4	K&L Gates LLP	108	93.4
5	NORTON ROSE FULBRIGHT US LLP	131	91.4
6	Casimir Jones, S.C.	183	91.2
7	Sughrue Mion, PLLC	253	90.0
8	Knowles Intellectual Property Strategies, LLC	54	86.4
9	Troutman Pepper Locke LLP	94	85.3
10	Michael Best & Friedrich LLP	62	85.0

Top 10 Patent Firms in Tech Center 1700

Technology Center 1700 covers patent applications in the fields of Chemical and Materials Engineering. Congratulations to Staas & Halsey for earning the top Patent Bots Quality Ranking in Tech Center 1700 for 2026. 

RANK	FIRM	COUNT	SCORE
1	STAAS & HALSEY LLP	81	99.75
2	CKC & Partners Co., LLC	54	97.8
3	Lempia Summerfield Katz LLC	55	97.1
4	IPUSA, PLLC	60	96.5
5	OSTROLENK FABER LLP	59	96.3
6	Dierker & Kavanaugh, P.C.	65	93.3
7	BURR PATENT LAW, PLLC	68	92.2
8	Global IP Counselors, LLP	58	89.7
9	Carrier, Shende & Associates P.C.	51	89.1
10	KED & ASSOCIATES, LLP	61	88.8

Top 10 Patent Firms in Tech Center 2100

Technology Center 2100 covers patent applications in the fields of Computer Architecture Software and Information Security. Congratulations to Young Basile Hanlon & MacFarlane for earning the top Patent Bots Quality Rankings in Tech Center 2100 for 2026.

RANK	FIRM	COUNT	SCORE
1	Young Basile Hanlon & MacFarlane, P.C.	62	99.9
2	FIG. 1 Patents	94	99.8
3	Caldwell Intellectual Property Law	102	99.8
4	Holland & Hart LLP	299	99.3
5	Harrity & Harrity, LLP	160	98.7
6	Lewis Roca Rothgerber Christie LLP	56	96.6
7	Renaissance IP Law Group LLP	88	95.3
8	Lowenstein Sandler LLP	240	93.6
9	Compass IP Law PC	71	92.6
10	Nicholson De Vos Webster & Elliott LLP	238	92.4

Top 10 Patent Firms in Tech Center 2400

Technology Center 2400 covers patent applications in the fields of Computer Networks, Multiplex, Cable and Cryptography/Security. Congratulations to Edell, Shapiro & Finnan, LLC for earning the top Patent Bots Quality Ranking in Tech Center 2400 for 2026.

RANK	FIRM	COUNT	SCORE
1	Edell, Shapiro & Finnan, LLC	101	99.8
2	Harrity & Harrity, LLP	719	99.7
3	Holland & Hart LLP	777	99.6
4	Young Basile Hanlon & MacFarlane, P.C.	150	99.4
5	Procopio, Cory, Hargreaves & Savitch LLP	247	96.1
6	M&B IP Analysts, LLC	134	95.8
7	ArentFox Schiff LLP	431	95.8
8	Osha Bergman Watanabe & Burton LLP	212	95.2
9	Lee & Hayes, P.C.	425	92.8
10	Dinsmore & Shohl LLP	52	91.9

Top 10 Patent Firms in Tech Center 2600

Technology Center 2600 covers patent applications in the fields of Communications. Congratulations to Keller Preece for earning the top Patent Bots Quality Ranking in Tech Center 2600 for 2026.

RANK	FIRM	COUNT	SCORE
1	Keller Preece PLLC	117	99.9
2	Young Basile Hanlon & MacFarlane, P.C.	177	99.6
3	Harrity & Harrity, LLP	219	99.4
4	Holland & Hart LLP	202	98.9
5	FIG. 1 Patents	119	98.8
6	Caldwell Intellectual Property Law	53	98.6
7	Edell, Shapiro & Finnan, LLC	80	98.3
8	Shumaker & Sieffert, P.A.	81	96.3
9	Nicholson De Vos Webster & Elliott LLP	127	95.5
10	Kubota & Basol LLP	82	94.6

Top 10 Patent Firms in Tech Center 2800

Technology Center 2800 covers patent applications in the fields of Semiconductors, Electrical and Optical Systems and Components. Congratulations to Akona IP for earning the top Patent Bots Quality Ranking in Tech Center 2800 for 2026.

RANK	FIRM	COUNT	SCORE
1	Akona IP PC	111	99.8
2	Alliance IP, LLC	53	99.8
3	Holland & Hart LLP	125	99.2
4	Thompson Hine LLP	90	99.1
5	CHIP LAW GROUP	203	98.3
6	Robinson Intellectual Property Law Office, P.C.	102	95.6
7	Venjuris, P.C.	160	95.6
8	Harrity & Harrity, LLP	275	95
9	Innovation Counsel LLP	166	95
10	Billion & Armitage	58	94.1

Top 10 Patent Firms in Tech Center 3600

Technology Center 3600 covers patent applications in the fields of Transportation, Electronic Commerce, Construction, Agriculture, Licensing and Review. Congratulations to Getz Balich for earning the top Patent Bots Quality Ranking in Tech Center 3600 for 2026.

RANK	FIRM	COUNT	SCORE
1	Getz Balich LLC	64	99.7
2	Young Basile Hanlon & MacFarlane, P.C.	112	99.6
3	CKC & Partners Co., LLC	52	99.6
4	Burris Law, PLLC	61	99.1
5	Caldwell Intellectual Property Law	76	98.7
6	Keating & Bennett, LLP	212	98.6
7	BCF LLP	72	98.3
8	Alleman Hall & Tuttle LLP	71	96.9
9	Paratus Law Group, PLLC	94	96.4
10	DeLizio, Peacock, Lewin & Guerra LLP	55	96

Top 10 Patent Firms in Tech Center 3700

Technology Center 3700 covers patent applications in the fields of Mechanical Engineering, Manufacturing and Products. Congratulations to Staas & Halsey for earning the top Patent Bots Quality Ranking in Tech Center 3700 for 2026.

RANK	FIRM	COUNT	SCORE
1	STAAS & HALSEY LLP	100	100
2	Getz Balich LLC	194	100
3	CKC & Partners Co., LLC	53	99.9
4	SoraIP, Inc.	64	99.5
5	Burris Law, PLLC	64	99.4
6	Keating & Bennett, LLP	72	99.3
7	Young Basile Hanlon & MacFarlane, P.C.	65	98.9
8	Dority & Manning, P.A.	413	98.2
9	Cooper Legal Group, LLC	69	97.5
10	Lempia Summerfield Katz LLC	159	96

Patent Quality Rankings Methodology

The Patent Quality Rankings are based only on average errors in issued patents and don't address other important aspects of patent quality. 

For the purpose of computing quality scores, we used only numbering errors, antecedent basis errors, and word support errors (words that don't appear in the detailed description).

Although we may over- or under-count errors in an individual patent, the average number of errors across all of a firm's patents is a good indicator of the overall quality of the firm's work. 

Learn more about our methodology.