Biography

Dan Callaway has represented numerous companies in all aspects of patent litigation, including patent and portfolio analysis, complex discovery, depositions, expert and witness preparation, pleading and motion practice, Markman proceedings, PTAB trials, courtroom argument and trial work.

Prior to attending law school, Dan obtained a master’s degree in electrical engineering, and spent four years working as an engineer at a startup semiconductor company. He designed hardware, wrote and debugged source code, and drew great satisfaction from bringing new chips from the lab into full production. He is an inveterate builder and tinkerer, and fascinated by how things work. As a result of his hands-on engineering experience, Dan is particularly effective at working on technical subject matters and with clients who are engineers. He speaks their language, and appreciates the nuance of their work.

Dan’s cases have included disputes over patents related to integrated circuit design, storage and networking, power delivery, computer processor and memory design, operating system and application software, and consumer products. He has also worked on cases involving electromechanical devices, security systems, and virus protection. His clients have included semiconductor companies, solar energy companies, computer hardware and software companies, a manufacturer of storage and networking products, a manufacturer of home and automotive electronics, online travel websites, and a non-profit research institute.

Dan has extensive experience with inter partes review proceedings before the Patent Trial and Appeal Board. Regardless of the forum, as a practitioner Dan’s process involves the careful, thorough examination of the intellectual property in question, and in-depth work with engineers, technologists and inventors to collect the evidence that informs how cases are ultimately resolved. In a legal field where evidence can obscure more than it reveals, Dan excels at locating the needle in the evidentiary haystack that supports his clients’ positions, and allows him to be an effective advocate.

Dan is the inventor of U.S. Patent No. 6,794,568, a device for detecting musical gestures using collimated light.

Memberships and Affiliations

  • Federal Circuit Bar Association
  • Bar Association of San Francisco
  • Patent and Trademark Bar Association

Firm Highlights

News

Ashley Breakfield Appointed to CREW Network Diversity & Inclusion Task Force

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News

Dan Cohn Named to Jewish Community Federation Board of Directors

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News

Hemp Legal Limbo Challenges Sonoma County's Delta Separations, Other Equipment Makers

Ryan Lowther provided commentary in a North Bay Business Journal article discussing banking and regulatory challenges facing the hemp industry. Read the full article, here .

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Publication

Is your company covered by California's new privacy law?

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News

California Targets Pot Smoke Anew Under State Chemical Safety Law

Sarah Bell was quoted in the article "California Targets Pot Smoke Anew Under State Chemical Safety Law," looking at whether both pot smoke and the active ingredient in cannabis should be classified as reproductive toxics...

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Publication

New California Housing Laws: AB 68 Accessory Dwelling Units

On January 1, 2020, several housing-related bills recently signed into law by the Governor take effect. We will explain the upcoming changes in housing law through a series of updates. Our first update...

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Event

Litigating Civil and Criminal Trade Secret Cases: Trends, Best Practices, and Lessons Learned

Trade secret litigation is on the rise, both civil litigation and follow-on criminal prosecution for trade secret theft. Companies are grappling with how to protect their valuable information and minimize risk in their technological...

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Publication

End of a Decade - Checklist for California Nonprofits

As 2019 comes to a close, we thought about our customary note to nonprofit officers and directors to take a few moments to confirm that important year-end responsibilities have not been overlooked. But since this...

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Publication

Are Losses Resulting from Phishing Incidents Covered by Crime Policies Insuring Against Computer Fraud?

It is an all-too-common dilemma. As phishing schemes have become more prevalent and more sophisticated, businesses of all sizes have fallen victim to these attacks where a fraudster will use a spoofed email or other...

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Event

WSJ Pro Cybersecurity Symposium

Tyler Gerking will be speaking at the WSJ Pro Cybersecurity Symposium session, "The Role of Cyber-Insurance." Details: How much should you buy, what does it cover and how does it fit with an overall...

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