Patent Bots is excited to announce our seventh annual Patent Quality Rankings of top patent law firms!
Proofreading is one of the many tools in the Patent Bots product suite, alongside AI-enabled drafting, art unit prediction, patent examiner statistics, patent family trees and histories, and more. As we've done every year since 2020, we used this advanced machine learning software for proofreading to review every patent issued – more than 327,000 this year! – by the USPTO in the past year.
We then ranked the 709 patent law firms with 50+ patents issued based on the average number of numbering, antecedent basis, and word support errors detected in their patents. Our rankings are based only on these error types and do not address many other important aspects of patent quality.
The State of Patent Accuracy in 2026
Before we unveil the top 50 patent law firms, let's take a look at the state of patent accuracy.
- 327,684 patents processed by the Patent Bots AI
- 46,013 (14%) patents with a perfect Patent Quality Score – up from 12% in 2025
- 6.38 average errors per patent – down from 6.55 in 2025
- 4 median errors per patent
The decline in average errors per patent is not a one-year phenomenon. The average has declined from 8.9 errors per patent when we began the rankings in 2020 to an all-time low of 6.38 this year.
The decrease in errors coincides with the rise of automated patent proofreading tools like Prep & Pros Pro by Patent Bots. As more patent attorneys have implemented these tools into their workflows, the prevalence of errors has decreased steadily from year to year.
That said, more than 280,000 (86%) of all patents issued in the last year contained at least one numbering, antecedent basis, or word support 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 50 Patent Law Firms
Congratulations to Getz Balich for jumping from the third spot in our 2025 rankings to claim first place this year among firms with 50+ patents issued.
The other firms that round out the top 50 for the 2026 rankings are listed below.
FIRM | RANK | NUMBER OF PATENTS | QUALITY SCORE |
Getz Balich LLC | 1 | 318 | 98.8 |
Duft & Bornsen, PC | 2 | 85 | 98.6 |
Harrity & Harrity, LLP | 3 | 1520 | 98.3 |
Caldwell Intellectual Property Law | 4 | 316 | 97.5 |
Burris Law, PLLC | 5 | 237 | 96.9 |
Holland & Hart LLP | 6 | 1539 | 96.7 |
MORI & WARD, LLP | 7 | 86 | 96.3 |
GTC Law Group PC & Affiliates | 8 | 87 | 96 |
FIG. 1 Patents | 9 | 392 | 95.6 |
Young Basile Hanlon & MacFarlane, P.C. | 10 | 721 | 95.4 |
IP Spring | 11 | 99 | 94.1 |
Dierker & Kavanaugh, P.C. | 12 | 90 | 93.4 |
Strategic Patents, P.C. | 13 | 51 | 93.1 |
MLO, a professional corp. | 14 | 71 | 93 |
Keller Preece PLLC | 15 | 307 | 92.8 |
Innovation Counsel LLP | 16 | 407 | 92.6 |
Robinson Intellectual Property Law Office, P.C. | 17 | 148 | 92.3 |
Pierce Atwood LLP | 18 | 187 | 91.9 |
Farjami & Farjami LLP | 19 | 73 | 90.4 |
Shumaker & Sieffert, P.A. | 20 | 775 | 90.2 |
Akona IP PC | 21 | 178 | 90.2 |
Parker Highlander PLLC | 22 | 63 | 90.2 |
Alleman Hall LLP | 23 | 105 | 89.7 |
Lowenstein Sandler LLP | 24 | 833 | 88.2 |
ARC IP Law, PC | 25 | 53 | 88.2 |
Nicholson De Vos Webster & Elliott LLP | 26 | 597 | 88.1 |
F. CHAU & ASSOCIATES, LLC | 27 | 556 | 86.9 |
Syncoda LLC | 28 | 310 | 86.8 |
Rowand LLP | 29 | 86 | 86.6 |
Venjuris, P.C. | 30 | 218 | 86.5 |
CKC & Partners Co., LLC | 31 | 602 | 86.4 |
DeLizio, Peacock, Lewin & Guerra LLP | 32 | 113 | 86 |
Posz Law Group, PLC | 33 | 322 | 86 |
Knowles Intellectual Property Strategies, LLC | 34 | 55 | 86 |
BURR PATENT LAW, PLLC | 35 | 182 | 85.8 |
Flagship Patents | 36 | 82 | 85.8 |
ALG Intellectual Property, LLC | 37 | 105 | 85.7 |
Lee & Hayes, P.C. | 38 | 1274 | 85.6 |
Alliance IP, LLC | 39 | 149 | 85.6 |
Kubota & Basol LLP | 40 | 207 | 85.5 |
Treyz Law Group, P.C. | 41 | 291 | 85.5 |
Carrier, Shende & Associates P.C. | 42 | 124 | 85.2 |
Keating & Bennett, LLP | 43 | 799 | 84.5 |
YHE Law LLP | 44 | 53 | 84.5 |
Lindauer Law, PLLC | 45 | 53 | 83.4 |
Alleman Hall & Tuttle LLP | 46 | 531 | 83.3 |
Brake Hughes Bellermann LLP | 47 | 360 | 83.3 |
Fernando & Partners, LLP | 48 | 95 | 83.3 |
Miller Johnson | 49 | 115 | 82.8 |
Parker Justiss, P.C. | 50 | 101 | 82.6 |
(Note: If you don't see your firm on the list above, review our full list inside
PatentVerse. You'll need to log in to see your firm's ranking as we don't want to publicly identify firms with lower scores.)
2026 Patent Quality Rankings: Top 10 Large Firms
In recognition of their prolific patent practices, we've segmented most active patent firms in the U.S. (those with at least 500 patents issued in the last year) into a Large Firms list.
For the fifth consecutive year, Harrity & Harrity held the top spot in the Large Firm rankings. Congratulations to Harrity & Harrity and the rest of these large firms for doing amazing work over the last year!
FIRM | RANK | NUMBER OF PATENTS | QUALITY SCORE |
Harrity & Harrity, LLP | 1 | 1520 | 98.3 |
Holland & Hart LLP | 2 | 1539 | 96.7 |
Young Basile Hanlon & MacFarlane, P.C. | 3 | 721 | 95.4 |
Shumaker & Sieffert, P.A. | 4 | 775 | 90.2 |
Lowenstein Sandler LLP | 5 | 833 | 88.2 |
Nicholson De Vos Webster & Elliott LLP | 6 | 597 | 88.1 |
F. CHAU & ASSOCIATES, LLC | 7 | 556 | 86.9 |
CKC & Partners Co., LLC | 8 | 602 | 86.4 |
Lee & Hayes, P.C. | 9 | 1274 | 85.6 |
Keating & Bennett, LLP | 10 | 799 | 84.5 |
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.
