At Patent Bots, we used our advanced machine learning software to proofread an entire year of issued patents and then ranked 802 law firms by the smallest average number of errors in the issued patents.
Congratulations to these firms for doing amazing work!
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See our PatentVerse page to see how your firm does in comparison. Other than the top 50 firms, you can only see your own firm's ranking (we don't want to publicly identify firms doing lower quality work). Note that these rankings are based only on average errors in issued patents and don't address other important aspects of patent quality.
This is the final posting of our second annual release of patent quality rankings for law firms and companies. For 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).
We rank the top 50 firms overall and also the top 10 in each USPTO tech center:
Top 50 Overall
| Rank | Law Firm | No. of Issued Patents | Quality Score |
|---|
| 1 | Hartman & Citrin LLC | 104 | 99.6 |
| 2 | Holland & Hart LLP/Qualcomm | 80 | 99.1 |
| 3 | Strategic Patents, P.C. | 68 | 98.1 |
| 4 | Alleman Hall Creasman & Tuttle LLP | 603 | 97.7 |
| 5 | Lindauer Law, PLLC | 86 | 96.4 |
| 6 | Harrity & Harrity, LLP | 570 | 96.2 |
| 7 | Robinson Intellectual Property Law Office | 178 | 96.1 |
| 8 | Guntin & Gust, PLC | 590 | 95.9 |
| 9 | Konrad Raynes Davda & Victor LLP | 211 | 95.8 |
| 10 | Shimokaji IP | 60 | 95.3 |
| 11 | GTC Law Group PC & Affiliates | 96 | 94.5 |
| 12 | Pramudji Law Group PLLC | 63 | 93.8 |
| 13 | Pierce Atwood LLP | 143 | 93.2 |
| 14 | Posz Law Group, PLC | 513 | 93.2 |
| 15 | McGarry Bair PC | 312 | 93.0 |
| 16 | The Small Patent Law Group LLC | 338 | 92.4 |
| 17 | Gibb & Riley, LLC | 57 | 92.3 |
| 18 | IP Spring | 56 | 92.0 |
| 19 | Athorus, PLLC | 158 | 91.6 |
| 20 | Rowand LLP | 66 | 91.3 |
| 21 | Chip Law Group | 891 | 91.0 |
| 22 | Darrow Mustafa PC | 165 | 90.7 |
| 23 | McDermott Will & Emery LLP | 1515 | 90.6 |
| 24 | Farjami & Farjami LLP | 122 | 90.4 |
| 25 | Holland & Hart LLP | 790 | 90.4 |
| 26 | Kimberly-Clark Worldwide, Inc. | 59 | 90.4 |
| 27 | MLO, a professional corp. | 64 | 89.7 |
| 28 | Hanley, Flight & Zimmerman, LLC | 812 | 89.5 |
| 29 | Mahamedi IP Law LLP | 77 | 89.3 |
| 30 | Alliance IP, LLC | 139 | 89.3 |
| 31 | Patent Capital Group | 293 | 89.2 |
| 32 | Bejin Bieneman PLC | 368 | 89.0 |
| 33 | Leveque IP Law, P.C. | 58 | 89.0 |
| 34 | Keller Jolley Preece | 240 | 88.7 |
| 35 | Keating & Bennett, LLP | 920 | 88.6 |
| 36 | Campbell Stephenson LLP | 90 | 88.4 |
| 37 | SBMC | 212 | 88.3 |
| 38 | Newport IP, LLC | 210 | 88.3 |
| 39 | IP Business Solutions, LLC | 83 | 88.0 |
| 40 | Behmke Innovation Group LLC | 229 | 87.4 |
| 41 | Yee & Associates, P.C. | 335 | 87.3 |
| 42 | Parker Justiss, P.C. | 59 | 87.1 |
| 43 | Walters & Wasylyna LLC | 71 | 87.1 |
| 44 | Dascenzo Intellectual Property Law, P.C. | 67 | 86.9 |
| 45 | Carrier Blackman & Associates, P.C. | 178 | 86.9 |
| 46 | Studebaker & Brackett PC | 1417 | 86.8 |
| 47 | Compass IP Law PC | 214 | 86.3 |
| 48 | WPAT, P.C., Intellectual Property Attorneys | 267 | 86.3 |
| 49 | Edwards Neils LLC | 59 | 85.3 |
| 50 | ScienBiziP, P.C. | 1183 | 85.0 |
Top 10 in Tech Center 1600
| Rank | Law Firm | No. of Issued Patents | Quality Score |
|---|
| 1 | Brown Rudnick LLP | 52 | 99.1 |
| 2 | W&C IP | 103 | 97.6 |
| 3 | Hamre, Schumann, Mueller & Larson, P.C. | 50 | 97.5 |
| 4 | Perkins Coie LLP | 89 | 94.4 |
| 5 | K&L Gates LLP | 124 | 94 |
| 6 | Kilpatrick Townsend & Stockton LLP | 339 | 93.6 |
| 7 | Quarles & Brady LLP | 137 | 93.3 |
| 8 | Oblon, McClelland, Maier & Neustadt, L.L.P. | 258 | 93 |
| 9 | Maschoff Brennan | 71 | 89.6 |
| 10 | Scully, Scott, Murphy & Presser, P.C. | 66 | 89.2 |
Top 10 in Tech Center 1700
| Rank | Law Firm | No. of Issued Patents | Quality Score |
|---|
| 1 | IPUSA, PLLC | 56 | 97.9 |
| 2 | McDermott Will & Emery LLP | 210 | 97.3 |
| 3 | Yee & Associates, P.C. | 64 | 96.9 |
| 4 | Global IP Counselors, LLP | 66 | 96.4 |
| 5 | Baker Botts L.L.P. | 114 | 96.3 |
| 6 | ScienBiziP, P.C. | 98 | 96.1 |
| 7 | Studebaker & Brackett PC | 137 | 95.5 |
| 8 | Burr & Brown, PLLC | 116 | 95.2 |
| 9 | Kinney & Lange, P.A. | 53 | 94.2 |
| 10 | Amin, Turocy & Watson, LLP | 70 | 93.6 |
Top 10 in Tech Center 2100
| Rank | Law Firm | No. of Issued Patents | Quality Score |
|---|
| 1 | Harrity & Harrity, LLP | 75 | 100 |
| 2 | Muirhead and Saturnelli, LLC | 52 | 97.8 |
| 3 | Holland & Hart LLP | 91 | 97.8 |
| 4 | Konrad Raynes Davda & Victor LLP | 163 | 97.3 |
| 5 | Alleman Hall Creasman & Tuttle LLP | 67 | 97 |
| 6 | Hanley, Flight & Zimmerman, LLC | 97 | 96.1 |
| 7 | Nicholson De Vos Webster & Elliott LLP | 243 | 95.9 |
| 8 | Trop, Pruner & Hu, P.C. | 92 | 95.8 |
| 9 | Zilka-Kotab, P.C. | 130 | 93.7 |
| 10 | Heslin Rothenberg Farley & Mesiti P.C. | 210 | 92.4 |
Top 10 in Tech Center 2400
| Rank | Law Firm | No. of Issued Patents | Quality Score |
|---|
| 1 | Harrity & Harrity, LLP | 175 | 99.5 |
| 2 | Holland & Hart LLP/Qualcomm | 53 | 98.7 |
| 3 | Hanley, Flight & Zimmerman, LLC | 210 | 97.8 |
| 4 | Holland & Hart LLP | 314 | 97 |
| 5 | Edell, Shapiro & Finnan, LLC | 147 | 96.3 |
| 6 | Guntin & Gust, PLC | 270 | 94.7 |
| 7 | IP Legal Services, LLC | 58 | 94.7 |
| 8 | Patent Capital Group | 63 | 94.5 |
| 9 | McDermott Will & Emery LLP | 86 | 94.2 |
| 10 | Osha Bergman Watanabe & Burton LLP | 73 | 93.8 |
Top 10 in Tech Center 2600
| Rank | Law Firm | No. of Issued Patents | Quality Score |
|---|
| 1 | Guntin & Gust, PLC | 168 | 100 |
| 2 | Pierce Atwood LLP | 87 | 99.8 |
| 3 | Harrity & Harrity, LLP | 67 | 99.6 |
| 4 | Alleman Hall Creasman & Tuttle LLP | 153 | 99.5 |
| 5 | Kile Park Reed & Houtteman PLLC | 56 | 98.1 |
| 6 | Holland & Hart LLP | 100 | 96.8 |
| 7 | Eversheds Sutherland (US) LLP | 73 | 96.6 |
| 8 | SBMC | 90 | 96.1 |
| 9 | Keller Jolley Preece | 77 | 95.8 |
| 10 | McDermott Will & Emery LLP | 206 | 95.5 |
Top 10 in Tech Center 2800
| Rank | Law Firm | No. of Issued Patents | Quality Score |
|---|
| 1 | Guntin & Gust, PLC | 63 | 99.5 |
| 2 | Holland & Hart LLP | 187 | 99.5 |
| 3 | The Marbury Law Group, PLLC | 161 | 98.7 |
| 4 | Chip Law Group | 218 | 98.2 |
| 5 | Duft & Bornsen, PC | 52 | 98.2 |
| 6 | Vierra Magen Marcus LLP | 126 | 97.6 |
| 7 | Alleman Hall Creasman & Tuttle LLP | 85 | 96.7 |
| 8 | Robinson Intellectual Property Law Office | 135 | 96.6 |
| 9 | Thompson Hine LLP | 123 | 96.5 |
| 10 | Pramudji Law Group PLLC | 55 | 95.8 |
Top 10 in Tech Center 3600
| Rank | Law Firm | No. of Issued Patents | Quality Score |
|---|
| 1 | Harrity & Harrity, LLP | 83 | 99.5 |
| 2 | Bejin Bieneman PLC | 249 | 99.4 |
| 3 | Alleman Hall Creasman & Tuttle LLP | 84 | 98.8 |
| 4 | ScienBiziP, P.C. | 54 | 98.8 |
| 5 | Keating & Bennett, LLP | 79 | 97.7 |
| 6 | Darrow Mustafa PC | 81 | 97.7 |
| 7 | Mori & Ward, LLP | 86 | 96.3 |
| 8 | Paratus Law Group, PLLC | 51 | 95.6 |
| 9 | McGuireWoods LLP | 69 | 94.7 |
| 10 | Athorus, PLLC | 69 | 93.9 |
Top 10 in Tech Center 3700
| Rank | Law Firm | No. of Issued Patents | Quality Score |
|---|
| 1 | Posz Law Group, PLC | 176 | 99.4 |
| 2 | McCoy Russell LLP | 356 | 99 |
| 3 | Mayer & Williams PC | 80 | 98.5 |
| 4 | Quinn IP Law | 97 | 98 |
| 5 | Keating & Bennett, LLP | 55 | 97.5 |
| 6 | McDermott Will & Emery LLP | 96 | 97.2 |
| 7 | McGarry Bair PC | 129 | 97.2 |
| 8 | KED & Associates LLP | 157 | 97 |
| 9 | Snell & Wilmer L.L.P. | 194 | 96.1 |
| 10 | Dority & Manning, P.A. | 572 | 96.1 |
