About

Provided by Crowe & Dunlevy, a Professional Corporation

Crowe & Dunlevy’s IP Practice Group represents clients in all aspects of intellectual property law. Our attorneys are drawn from both the business and litigation areas and experienced in IP procurement, licensing and transactional matters, IP support in complex transactions, IP portfolio management, and litigation before state and federal tribunals. We offer clients IP counsel in a variety of areas including patents, information technology, copyrights, trademarks, unfair trade, the internet, domain names, trade secrets, outsourcing and franchising.

The firm is positioned to guide individuals and businesses with domestic concerns as well as networking with international agents to provide comprehensive service to clients with transnational interests and global IP portfolios. This approach enables our IP group to advise clients in procuring, licensing or enforcing IP in every major region of the world.

Our patent attorneys have the requisite scientific training and industry experience necessary to understand and advise on technology matters while drawing from training in diverse fields such as chemistry, chemical engineering, mechanical engineering, aerospace engineering, petroleum engineering, physics and software and hardware engineering. This collective body of technical experience facilitates technology procurement, protection and exploitation efforts covering a wide array of technologies from polymer chemistry to gaming software, and from industrial equipment to health care.

Chambers Review

Provided by Chambers

Intellectual Property - Oklahoma

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Band 1

What the Team is Known For

Crowe & Dunlevy has a full-service practice, catering to the transactional and contentious IP requirements of a regional and national clientele, notably including several leading players in the oil and gas sector. Highly experienced in the licensing of IT assets and, with the support of an international network of partner firms, the management of global patent and trademark portfolios. Also known for its litigation capability, and currently expanding its ability to handle hi-tech IP issues from the Tulsa office, while also drawing additional support from its Dallas presence. Acts for a broad range of clients, including academic institutions and manufacturing and energy companies.

Work Highlights

  • Crowe & Dunlevy represents Jasco Products Company in a patent infringement case filed by SIPCO.

Strengths

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Notable Practitioners

Provided by Chambers

David Sullivan
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David Sullivan
Head of Intellectual Property
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Band 1
David Sullivan offers significant experience in IP matters, including patent issues, licensing and trademark prosecution. He is noted for his particular expertise acting for clients in the energy and oil and gas sectors.

David is the consummate professional, and his attention to detail is greatly valued.

Shawn Dellegar
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Shawn Dellegar
1
Band 1
Shawn Dellegar is frequently sought after by clients in the energy and oil and gas sectors for assistance with patent prosecution. He is also experienced in handling IPR challenges.

Shawn is outstanding. An easygoing and informal manner is married to a razor-sharp mind and excellent client skills.

Shawn is a reliable, responsive, friendly professional with deep experience.

Ranked Lawyers at
Crowe & Dunlevy, a Professional Corporation

Provided by Chambers
Filter by
Band

Oklahoma

Intellectual Property

David Sullivan
1
David Sullivan
Head of Intellectual Property
1
Band 1
Shawn Dellegar
1
Shawn Dellegar
1
Band 1

Members

Provided by Crowe & Dunlevy, a Professional Corporation

David Sullivan

David Sullivan

Head of Department

Shawn M. Dellegar

Tynia A. Watson

Industries

Provided by Crowe & Dunlevy, a Professional Corporation

Banks

Charities / Not for Profit

Chemicals

Education

Energy

Food & Drink Producers

Health Care

Insurance

Media

Mining & Metals

Pharmaceuticals & Life Sciences

Private Clients / Individuals

Software & Computer Services

Technology, Hardware & Electronics

Telecommunications