United States Patent and Trademark Office (PTO)
349,635Words in 19 parts
11.1Restriction density (per 1,000 words)
20.1Reading grade
0.0%Unchanged since 2017
0Flagged parts
2026-08-26Last change
Section changes per year
From the eCFR versioner, for the parts that the agency owns now. Before 2017 is the baseline load.
Text and size
- Sentences
- 38.0 words on average; 33.0% over 40 words; 44.2% passive; 19.3 cross-references per 1,000 words
- Sentence types
- definition 3.2% · prohibition 4.0% · paperwork 12.9% · obligation 18.9% · permission 16.4% · other 44.6%
- Checksum
7c4db81a5d1273fa9bfeafdb8a96967d7c135ff41073a258d95870c3decadef1
Review candidates in this agency
| Rank | Part | Words | Score |
|---|---|---|---|
| 892 | 37 CFR 1
RULES OF PRACTICE IN PATENT CASES
High signals: Size
+2.8 SD · Paperwork share
+1.0 SD |
150,886 | 0.60 |
| 1,034 | 37 CFR 11
REPRESENTATION OF OTHERS BEFORE THE UNITED STATES PATENT AND TRADEMARK OFFICE
High signals: Size
+1.7 SD · Directive share
+1.1 SD |
44,250 | 0.55 |
| 1,548 | 37 CFR 5
SECRECY OF CERTAIN INVENTIONS AND LICENSES TO EXPORT AND FILE APPLICATIONS IN FOREIGN COUNTRIES
High signals: Paperwork share
+1.7 SD · Reading grade
+1.4 SD |
5,066 | 0.40 |
| 1,609 | 37 CFR 2
RULES OF PRACTICE IN TRADEMARK CASES
High signals: Size
+2.1 SD |
70,197 | 0.38 |
| 2,086 | 37 CFR 102
DISCLOSURE OF GOVERNMENT INFORMATION
High signals: Paperwork share
+1.4 SD |
16,184 | 0.25 |
| 2,559 | 37 CFR 3
ASSIGNMENT, RECORDING AND RIGHTS OF ASSIGNEE
High signals: Paperwork share
+1.5 SD |
4,724 | 0.14 |
| 2,606 | 37 CFR 7
RULES OF PRACTICE IN FILINGS PURSUANT TO THE PROTOCOL RELATING TO THE MADRID AGREEMENT CONCERNING THE INTERNATIONAL REGISTRATION OF MARKS
High signals: Paperwork share
+1.2 SD |
7,605 | 0.13 |
| 4,343 | 37 CFR 42
TRIAL PRACTICE BEFORE THE PATENT TRIAL AND APPEAL BOARD
High signals: Size
+1.0 SD |
20,084 | -0.27 |
| 4,445 | 37 CFR 41
PRACTICE BEFORE THE PATENT TRIAL AND APPEAL BOARD
High signals: Size
+1.1 SD |
22,099 | -0.30 |
| 5,395 | 37 CFR 104
LEGAL PROCESSES
High signals: none above 1 SD; ranked by the combined score |
2,409 | -0.57 |
| 5,539 | 37 CFR 150
REQUESTS FOR PRESIDENTIAL PROCLAMATIONS PURSUANT TO 17 U.S.C. 902(a)(2)
High signals: none above 1 SD; ranked by the combined score |
1,054 | -0.62 |
| 5,880 | 37 CFR 43
DECISION CIRCULATION AND REVIEW WITHIN THE PATENT TRIAL AND APPEAL BOARD
High signals: none above 1 SD; ranked by the combined score |
1,127 | -0.76 |
| 5,973 | 37 CFR 90
JUDICIAL REVIEW OF PATENT TRIAL AND APPEAL BOARD DECISIONS
High signals: none above 1 SD; ranked by the combined score |
1,301 | -0.81 |
| 6,331 | 37 CFR 4
COMPLAINTS REGARDING INVENTION PROMOTERS
High signals: none above 1 SD; ranked by the combined score |
1,008 | -1.14 |
| 6,376 | 37 CFR 6
CLASSIFICATION OF GOODS AND SERVICES UNDER THE TRADEMARK ACT
High signals: none above 1 SD; ranked by the combined score |
1,626 | -1.30 |
Score: the mean of six signals, in standard deviations (SD). Across the CFR, the top 641 of 6,402 ranked parts (10%) get a flag for review; this list shows 15. A flag is not a finding.
Statutes behind the most text
- 35 U.S.C. 2: 349,620 words in 15 parts (100.0% of this agency's text)
- 15 U.S.C. 1113: 221,083 words in 2 parts (63.2% of this agency's text)
- 35 U.S.C. 112: 150,886 words in 1 parts (43.2% of this agency's text)
- 35 U.S.C. 113: 150,886 words in 1 parts (43.2% of this agency's text)
- 35 U.S.C. 114: 150,886 words in 1 parts (43.2% of this agency's text)
- 35 U.S.C. 121: 150,886 words in 1 parts (43.2% of this agency's text)
- 35 U.S.C. 131: 150,886 words in 1 parts (43.2% of this agency's text)
- 35 U.S.C. 132: 150,886 words in 1 parts (43.2% of this agency's text)
- 35 U.S.C. 133: 150,886 words in 1 parts (43.2% of this agency's text)
- 35 U.S.C. 134: 150,886 words in 1 parts (43.2% of this agency's text)
From the authority notes. A citation is not proof that the statute requires the rule.
Largest parts
- 37 CFR 1: RULES OF PRACTICE IN PATENT CASES (150,886 words)
- 37 CFR 2: RULES OF PRACTICE IN TRADEMARK CASES (70,197 words)
- 37 CFR 11: REPRESENTATION OF OTHERS BEFORE THE UNITED STATES PATENT AND TRADEMARK OFFICE (44,250 words)
- 37 CFR 41: PRACTICE BEFORE THE PATENT TRIAL AND APPEAL BOARD (22,099 words)
- 37 CFR 42: TRIAL PRACTICE BEFORE THE PATENT TRIAL AND APPEAL BOARD (20,084 words)
- 37 CFR 102: DISCLOSURE OF GOVERNMENT INFORMATION (16,184 words)
- 37 CFR 7: RULES OF PRACTICE IN FILINGS PURSUANT TO THE PROTOCOL RELATING TO THE MADRID AGREEMENT CONCERNING THE INTERNATIONAL REGISTRATION OF MARKS (7,605 words)
- 37 CFR 5: SECRECY OF CERTAIN INVENTIONS AND LICENSES TO EXPORT AND FILE APPLICATIONS IN FOREIGN COUNTRIES (5,066 words)
- 37 CFR 3: ASSIGNMENT, RECORDING AND RIGHTS OF ASSIGNEE (4,724 words)
- 37 CFR 104: LEGAL PROCESSES (2,409 words)
Reading grade and sentence types are approximate. Simple rules label each sentence; the first match wins.