Duane A. Stewart III

Buchanan Ingersoll & Rooney PC

Duane integrates complex science and legal matters at a high level. He specializes in explaining complex intellectual property law concepts in a way that is accessible. Duane is the co-chair of the firm’s Chemical Practice Group.

His patent practice includes preparation and prosecution of domestic and foreign utility and design patents in the pharmaceuticals, fragrance, home products and biotechnology fields. Duane has obtained multiple foreign and domestic patents in industrial water purification. He has significant experience managing international patent portfolios, having made and managed filings in more than 30 jurisdictions.

He has taken an active role in priority determinations in patent interferences and has participated in litigations involving allegations of patent infringement and copyright infringement. Duane’s particular patent focus is on use of PCT filings to obtain wide territorial coverage while satisfying the applicant’s business goals.

Duane’s trademark practice includes all phases of procurement and enforcement, including knockout searches, clearance opinions, watches, filings and oppositions. He has supervised foreign trademark filing both directly and through the Madrid Protocol, and he has filed foreign-origin applications in the United States.

Duane is a shareholder in the firm’s Intellectual Property Section and co-chair of its Chemical Practice Group. Before joining Buchanan, served for two years as a judicial law clerk with the Honorable David A. Katz of the United States District Court for the Northern District of Ohio in Toledo, Ohio.

Duane addresses client’s IP issues with effective strategy and pragmatic advice. He keeps the client’s business goals top of mind and makes sure that clients know that their matters have his attention.


Rate : $$$

What types of cases Attorney Duane A. Stewart III & Buchanan Ingersoll & Rooney PC can handle?
Buchanan Ingersoll & Rooney PC can handle cases related to laws concerning Copyright Application, Litigation, Intellectual Property, Trademark infringement. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is Buchanan Ingersoll & Rooney PC located?
Buchanan Ingersoll & Rooney PC is located at One Oxford Centre, 301 Grant St #20th+floor, Pittsburgh, PA 15219, USA. You can reach out to Buchanan Ingersoll & Rooney PC using their phone line 412 562 1622. You can also check their website bipc.com.
How much would it cost to hire Buchanan Ingersoll & Rooney PC?
Duane A. Stewart III lawyer charges are specific to each case. However, they work with contingency fees and its ranges from $$ to $$$. They also provide free consultation [and no obligation quotes] if you are interested to hire.
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Buchanan Ingersoll & Rooney PC
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Pittsburgh 15219 PA US
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