For more than three decades, Larson & Larson has carried forward a family tradition of helping innovators protect what makes their businesses valuable, serving clients in Tampa Bay and beyond with trusted intellectual property guidance.
Larson & Larson was founded in 1987 by the late Herbert W. Larson, Sr., following his retirement from a 24-year career as patent counsel at DuPont. After relocating his family from Pennsylvania to Florida, Herb wasn’t quite ready to stop practicing law — so he launched his own firm. Larson & Larson was born.
Herb’s son, Herbert William “Bill” Larson, Jr., joined the firm early on and continues to lead it today as owner and managing partner. His brother, James Larson, a patent attorney, later served as a partner and now supports the firm in an Of Counsel capacity.
Bill’s wife, Mickey Larson, has been with the firm since its start, providing essential administrative leadership. Today, she manages operations and finances and oversees all trademark filings and docketing.
Patent agent Frank Liebenow joined the team in 2005, bringing decades of expertise in electrical, mechanical, and computer-related patent applications.
Together, the team continues to build on Herb’s vision, offering a personal, client-focused approach to intellectual property law.
We help innovators turn ideas into assets.
Our mission is to safeguard what makes your business valuable — your inventions, your brand, and your creative work. Through patent, trademark, and copyright protection, we position you to stay ahead of the competition and grow with confidence.
Our office is centrally located in Largo, Florida, easily accessible from Tampa, Clearwater, and the greater Tampa Bay area.
11199 69th St. N
Largo, FL 33773 Map It »
Parking available in front of the building
Open Monday–Friday, 9:00 a.m. to 5:00 p.m.
Whether you’re building your brand, designing a product, or developing new technology, we’ll help you protect your intellectual property and safeguard your competitive advantage.
Call us at (727) 546-0660 to get started. If we’re unavailable, please leave a message with the following details:
1. Your name and callback number
2. The type of service you’re seeking (patent, trademark, copyright)
3. A short description of your invention, brand, or issue
We’ll get back to you promptly to discuss your options.