Optics and Electronics Patents

it’s what we do.


We’ve worked for some of the largest patent firms in the nation, but that’s not who we are. At FreeStone IP, we are dedicated to providing quality outcomes rather than billing hours. We prioritize retaining top talent and allowing our attorneys to spend the time to do the project right at a fixed fee cost. Ultimately, this priority adds value to the client in the form of quality, time-saved, and fewer dollars spent during prosecution. And this isn’t just a theory – the results are in the data.

We love bringing our optics and electronics experience from both engineering careers and legal experience to the projects we handle. Our clients range from tech startups to Fortune 100 corporations and we recognize the changing IP priorities that companies encounter as they grow. Understanding our client’s strategic purpose is our priority for each patent application we are trusted with.

Our Services

We strive to provide exceptional value to clients. To achieve this, we assist clients in aspects of patent prosecution including: 

  • Patent Application Preparation and Filing (Domestic and International)
  • Patent Prosecution
  • Intellectual Property Counseling and Advice
  • Due Diligence
  • Patent Portfolio Development and Management


We think matching inventors with the right practitioner makes all the difference - from disclosure through prosecution. If you need deep expertise in the following technologies, we can help.  

  • Diffractive and Refractive optical systems
  • Image Sensors
  • Head Mounted Displays for AR and VR
  • Drones
  • Displays
  • Medical Imaging
  • Switching Power Supplies

Our Team

Aaron Visbeek partner

Mr. Visbeek works at the intersection of optics and electronics. As a former R&D engineer for a display manufacturer, he enjoys patenting technologies that include holograms, cameras, LEDs, lasers, displays, analog and digital circuits, and/or complex optical systems. During his career, Aaron has drafted and prosecuted hundreds of hardware patent applications for some of the best-known companies in Seattle and Silicon Valley.

Linda Zachariah partner

Linda has over 15 years of experience drafting and prosecuting patent applications. Her patent work has included the fields of computer memory, semiconductors, optics, and Internet technology. Linda prosecutes optical patents for industry leaders related to subject matter ranging from optical waveguides and interconnects to silicon photonics neural networks. Linda's IP experience also includes serving as general counsel at a digital medical startup.

Wes Horner partner

Wes is a highly skilled patent practitioner with a focus on drafting and prosecuting patent applications on cutting-edge technologies involving machine perception, natural language processing, animation, cloud computing, data security, and more. Wes's background and training in electrical engineering and engineering physics has allowed him to pick up essentially any technology in the electrical, software and mechanical arts, and explain it in a way that makes it accessible to anyone.

Andrew Cameron partner

Andrew has established himself as a practical and professional patent practitioner with 15+ years’ experience in drafting and prosecuting hundreds of original hardware patent applications. Andrew excels in the management and procurement of valuable intellectual property throughout the entire patent life cycle in complex fields such as semiconductors, analog and digital circuits, MEMS, optical systems, and telecommunications. Representative clients have included numerous Fortune 500 companies and the U.S. Navy.

Jessica Guthrie Paralegal

Jessica provides docketing, filing, and portfolio management support for patent clients. Mrs. Guthrie spent seven years as a paralegal with some of Seattle’s most recognizable law firms. Jessica holds a Paralegal Certificate from the University of Washington and earned a B.S. in Marine Biology from the University of Hawaii.

Renee Swinburne Legal Operations Lead

Renee leads day-to-day operations at the firm. Mrs. Swinburne's work includes billing, filing preparation, and  recordation of formal documents. Renee earned a Bachelor of Arts in Business Administration and Management from Simpson University in Redding, CA.