United States Patent and Trademark Office: Protecting American Innovation
The United States Patent and Trademark Office (USPTO) serves as the federal agency responsible for granting patents and registering trademarks, ensuring that inventors and businesses can protect their intellectual property. Operating under the United States Department of Commerce, the USPTO administers the laws that incentivize innovation and protect brand identity across the nation.
The agency is headquartered in Alexandria, Virginia, where its largest facility, the James Madison Building, houses the core of its operations. To better serve the diverse landscape of American innovation, the USPTO also maintains satellite offices, including a location in San Jose, California.

Key Facts
- Parent Agency: United States Department of Commerce.
- Headquarters: Alexandria, Virginia.
- Workforce: 14,082 employees as of 2024.
- Leadership: Directed by John A. Squires, with Coke Morgan Stewart serving as Deputy Director.
- Core Mission: Administering laws relating to patents and trademarks.
Agency Structure and Operations
The USPTO is a massive operation requiring a specialized workforce to evaluate the novelty and legality of thousands of applications. The agency employs patent examiners, who review technical specifications for inventions, and trademark examining attorneys, who ensure that brand marks are distinct and legally protectable.

The scale of the agency's work is reflected in its annual filing numbers. In 2024 alone, the office handled 466,079 utility patent filings (patents granted for the functional aspects of an invention) and 767,138 trademark filings.

Historical Milestones in Patenting
Since the first U.S. patent was issued on July 13, 1836, for "Traction Wheels," the office has seen a dramatic acceleration in the pace of innovation. The time elapsed between millionth-patent milestones has shrunk significantly over the decades, reflecting the rapid growth of global technology.
For example, it took over 27,000 days to move from the first millionth patent (Vehicle Tire, 1911) to the second millionth (Vehicle Wheel Construction, 1932). By contrast, the gap between the 11th millionth (Prosthetic Heart Valve Devices, 2021) and the 12th millionth (Labeled Nucleotide Analogs, 2024) was only 1,120 days.
Millionth Patent Milestones
| Patent Number | Title | Issue Date |
|---|---|---|
| 1 | Traction Wheels | July 13, 1836 |
| 1,000,000 | Vehicle Tire | August 8, 1911 |
| 5,000,000 | Ethanol Production by Escherichia Coli Strains | March 19, 1991 |
| 10,000,000 | Coherent Ladar Using Intra-Pixel Quadrature Detection | June 19, 2018 |
| 12,000,000 | Labeled Nucleotide Analogs, Reaction Mixtures, and Methods and System for Sequencing | June 4, 2024 |
Growth and Workforce Trends
The USPTO has expanded its workforce steadily to keep pace with the volume of applications. Between 2010 and 2024, the total number of employees grew from 9,507 to 14,082. This growth is primarily driven by the need for more patent examiners to reduce the application backlog and ensure timely grants.
Workforce and Filing Data (Recent Years)
- 2024: 14,082 employees; 8,944 patent examiners; 765 trademark attorneys.
- 2020: 12,928 employees; 8,434 patent examiners; 622 trademark attorneys.
- 2015: 12,667 employees; 9,161 patent examiners; 456 trademark attorneys.
Frequently Asked Questions
What is the primary mission of the USPTO?
The primary mission of the USPTO is to administer the laws relating to patents and trademarks, providing a legal framework for inventors and businesses to protect their intellectual property.
Where is the USPTO headquartered?
The USPTO is headquartered in Alexandria, Virginia, with the James Madison Building serving as the largest facility on its campus.
What is the difference between a patent examiner and a trademark examining attorney?
Patent examiners review applications for new inventions to determine if they meet the legal requirements for a patent, while trademark examining attorneys review applications for brand names, logos, and slogans to ensure they are eligible for trademark registration.
How has the pace of patenting changed over time?
The pace has accelerated significantly. While it took decades to reach the first few million patents, the agency now reaches millionth-patent milestones in just a few years, reflecting a surge in modern technological innovation.
Who currently leads the USPTO?
As of the most recent records, the agency is led by Director John A. Squires and Deputy Director Coke Morgan Stewart.