2024 Patent Quality Rankings: The Top 50 Patent Law Firms

It's been five years since we first sought to quantify the state of patent accuracy in the U.S. Today, Patent Bots is pleased to announce our FIFTH annual Patent Quality Rankings of top patent law firms!

As we've done every year since 2020, we used our advanced machine learning software to review every patent issued – nearly 324,000 this year! – by the USPTO in the past year. 

We then ranked the 730 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. 

Patent Accuracy: By the Numbers.

Before we unveil the top 50 patent law firms, let's take a look at the state of patent accuracy.

• 323,820 patents processed by the Patent Bots AI
• 36,824 (11.4%) patents with a perfect Patent Quality Score – up from 10.3% in 2023
• 6.75 average errors per patent – down from 7.9 in 2023
• 4 median errors per patent – down from 5 in 2023

The decline in errors per patent is not a one-year phenomenon. In fact, the average has declined nearly 25% in just five years – from 8.9 errors per patent in 2020 to an all-time low of 6.75 this year.

The decrease coincides with the rise of automated patent proofreading tools like Patent Bots Prep & Pros Pro. As more patent attorneys have implemented these tools into their workflows, the prevalence of errors has decreased steadily – and dramatically – year after year. 

That said, nearly 287,000 (88%) 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!

2024 Patent Quality Rankings: Top 10 Large Firms.

We've segmented America's most active patent firms (those with at least 500 patents issued in the last year) into a Large Firms list to recognize their prolific patent practices. 

For the full Top 50 ranking of patent firms, keep scrolling! 

For the third consecutive year, Harrity & Harrity held the top spot in the rankings. Congratulations to Harrity & Harrity and the rest of these large firms for doing amazing work over the last year! 

(A quick note about the rankings: Some companies file their own patents rather than filing through outside counsel. In these instances, the company is both the patent filer AND the patent owner and is included in our rankings as both a firm and a company. The company rankings will be released later this year.)

Rank	Law Firm	Patents Issued	Quality Score
1	Harrity & Harrity, LLP	1274	98.9
2	Holland & Hart LLP	1596	97.1
3	QUALCOMM Incorporated	538	96.3
4	Global IP Counselors, LLP	559	88.9
5	Patterson + Sheridan, LLP	1591	88.7
6	Keating & Bennett, LLP	644	85.8
7	CHIP LAW GROUP	711	85.5
8	Lowenstein Sandler LLP	1054	< 85.2
9	Rankin, Hill & Clark LLP	605	< 85.2
10	Procopio, Cory, Hargreaves & Savitch LLP	748	< 85.2

2024 Patent Quality Rankings: Top 50 Firms Overall. 

Large firms don't have a monopoly on patent accuracy. In our Top 50 overall rankings, 43 firms had fewer than 500 patents issued, 31 had fewer than 200 issued, and 14 had fewer than 100 issued. 

Congratulations to Patent Bots customer FIG. 1 Patents for jumping all the way from No. 8 in our 2023 rankings to the top of our 2024 list. 

(If you don't see your firm on the list below, review our full list inside our 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.)

Rank	Law Firm	Patents Issued	Quality Score
1	FIG. 1 Patents	266	99.6
2	Dierker & Kavanaugh, P.C.	53	99.3
3	Commvault Systems, Inc.	74	99.1
4	Harrity & Harrity, LLP	1274	98.9
5	The Pattani Law Group	139	98.1
6	Lindauer Law, PLLC	70	98
7	Holland & Hart LLP	1596	97.1
8	Duft & Bornsen, PC	137	97
9	QUALCOMM Incorporated	538	96.3
10	Ferguson Braswell Fraser Kubasta PC	119	96.3
11	GTC Law Group PC & Affiliates	132	96.2
12	Getz Balich LLC	178	96.1
13	Neustel Law Offices	85	95.1
14	MLO, a professional corp.	91	94.3
15	Rowand LLP	121	94.1
16	Garlick & Markison	256	94
17	KILE PARK REED & HOUTTEMAN PLLC	414	93.7
18	BEHMKE INNOVATION GROUP LLC	143	93.4
19	Talem IP Law, LLP	52	92.4
20	Farjami & Farjami LLP	63	92
21	Robinson Intellectual Property Law Office	184	91.9
22	KENJA IP LAW PC	159	91.5
23	Kubota & Basol LLP	104	90.9
24	Alleman Hall Creasman & Tuttle LLP	418	90.7
25	Pierce Atwood LLP	184	89.8
26	Guntin & Gust, PLC	251	89.5
27	CKC & Partners Co., LLC	478	89.4
28	Innovation Counsel LLP	336	89.1
29	Global IP Counselors, LLP	559	88.9
30	ALG Intellectual Property, LLC	120	88.8
31	Carrier, Shende & Associates P.C.	147	88.7
32	Patterson + Sheridan, LLP	1591	88.7
33	KLIGLER & ASSOCIATES PATENT ATTORNEYS LTD	188	88.4
34	Yee & Associates, P.C.	175	88.2
35	IP Spring	100	88.2
36	ARC IP Law, PC	54	87.7
37	Parker Justiss, P.C.	85	87.2
38	Cramer Patent & Design, PLLC	64	87.2
39	The Small Patent Law Group LLC	286	87.1
40	Intellectual Valley Law, P.C.	50	86.7
41	POSZ LAW GROUP, PLC	391	86.3
42	Alleman Hall & Tuttle LLP	51	86.2
43	Konrad Raynes Davda & Victor LLP	68	85.9
44	Keating & Bennett, LLP	644	85.8
45	Burris Law, PLLC	287	85.7
46	CHIP LAW GROUP	711	85.5
47	Darrow Mustafa PC	228	85.4
48	McGarry Bair PC	279	85.3
49	SOLARIS Intellectual Property Group, PLLC	103	85.2
50	Christopher P. Maiorana, PC	54	85.2

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 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.