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

1
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. The firm is 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, the firm is expanding its ability to handle hi-tech IP issues from the Tulsa office, while also drawing additional support from its Dallas presence. It further acts for a broad range of clients, including academic institutions and manufacturing and energy companies.

Work Highlights

  • The Firm supported EnergySource Minerals in IP matters and strategies for its Project ATLiS, including a USD1.36 billion DOE loan.

Strengths

Provided by Chambers

Notable Practitioners

Provided by Chambers

David Sullivan
1
David Sullivan
Head of Intellectual Property
1
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 Sullivan always goes above and beyond to serve us.

David has great experience, knowledge and is a great support.

David handles patent litigation very well and at a high level.

Shawn Dellegar
1
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 Dellegar is great to answer any questions and help decide on the best path forward.

Shawn is essential to our business and company.

Shawn is superb: very approachable, excellent client manner, and gets the job done right. You know that if he is on the matter, it is taken care of with professionalism and skill.

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