Our Firm

Collen provides legal representation to global companies and other businesses in the areas of trademark, copyright, design and utility patent, advertising and marketing, and privacy and information management.

We enjoy a tradition of excellence.  In addition to being practicing attorneys, many of our lawyers are lecturers, authors and leaders of the intellectual property bar.  Our accumulated knowledge and experience make it possible for us to approach each problem from an advanced starting point.  We do not learn at our clients’ expense.  We are proud to say that we have long-standing professional relationships with many of our clients.  On request, we are happy to provide prospective new clients with contact information for our existing client references.

Our services include:

Trademark Prosecution

Our trademark prosecution group efficiently handles client trademark portfolios and manages thousands of applications and registrations worldwide.

Patent Prosecution

Our patent prosecution team helps clients protect their inventions in the United States.


Our litigation group represents U.S. and global companies in federal trial and appellate courts in matters ranging from complex, “bet-the-brand” disputes to more routine trademark, copyright, patent, trade secret and false advertising cases.  Each year, we litigate one of the country’s most extensive dockets of Opposition and Cancellation administrative proceedings before the United States Patent and Trademark Office’s Trademark Trial and Appeal Board.

Advertising & Marketing

Our advertising and marketing lawyers help clients stay legally compliant when launching new advertising and marketing campaigns.

Privacy & Information Management

Our privacy and information management lawyers help those companies navigate the complex patchwork of regulations that govern the collection, use and transfer of consumer and other data.

Additional Services Provided

THE NOMINATOR™ trademark advice – Trademark work product and registrability opinions. Business consultation services, including, brand evaluation and creating trademarks; legal consulting services; consulting and providing reports in the field of intellectual property law; legal research services, including, trademark and company name research services.

NAMEVET® – Business name experts featuring HARMONICA® company and product name reports, including consultation and research services rendered in connection with creating and monitoring trademarks and other corporate names.

REGISTAT™ – Business consultation services for brand evaluation, creating corporate and brand identities and trademarks, legal services and intellectual property licensing.

FEDTRADE® – Consulting services for intellectual property concerns and trademark application services.