David L. Sigalow

Attorney Profile

Top Rated Intellectual Property Attorney in Orlando, FL

Allen Dyer Doppelt & Gilchrist, P.A.
 | 255 South Orange Avenue, Suite 1401
Orlando, FL 32801
Phone: 305-707-5998
Fax: 407-841-2343
Selected To Super Lawyers: 2010 - 2020
Licensed Since: 1997
Practice Areas:
  • Intellectual Property
Attorney Profile

Attorney David L. Sigalow is a shareholder with the Allen, Dyer, Doppelt, & Gilchrist, P.A., law firm in Orlando, Florida. A registered patent attorney, Mr. Sigalow has more than 39 years of experience handling intellectual property transactions, including patent, copyright and trademark acquisition and counseling, licensing matters, and franchise law. Over the course of his career, he has successfully handled numerous matters for clients in the computer software and hardware industries as well as those in the publishing industry and the consumer products manufacturing industries.

A 1977 graduate of Northwestern University, Mr. Sigalow obtained his Juris Doctor with honors from Chicago-Kent College of Law in 1980. He holds his license to practice in Illinois and New York as well as Florida, and he is admitted to practice before the U.S. Patent and Trademark Office and the U.S. District Courts for the Western District of Texas, the Southern District of New York, the District of Connecticut, and the Northern District of Illinois.

Widely regarded as a leader in his field, Mr. Sigalow currently serves as adjunct professor with the University of Phoenix's Orlando Division. He has published numerous articles and texts involving licensing law, insurance and indemnification provisions, and other subjects. Furthermore, he routinely conducts lectures across his region and throughout the country on a variety of legal topics related to intellectual property law.

Recognized for his outstanding legal abilities and exemplary professionalism, Mr. Sigalow has earned consistent recognition from The Best Lawyers in America© in copyright and trademark law, and the organization named him Lawyer of the Year in 2018. In addition, IP STARS named him an IP Star in its 2019/2020 edition, and Managing Intellectual Property magazine named him an IP Star in 2014. Orlando Magazine voted Mr. Sigalow among the area's Best Lawyers from 2012 to 2014, and Trademark Insider listed him among the Top 50 Trademark Filers in 2010.

Best Lawyers® and The Best Lawyers in America© are registered trademarks of BL Rankings, LLC d/b/a Best Lawyers and Co., LLC. The names, logo, and database are protected under the trademark, copyright, and fair use laws of the United States of America. Any use of name, including in electronic form, must be made only by permission and under the guidelines of BL Rankings, LLC d/b/a Best Lawyers and Co., LLC.

Practice Areas
  • 100%Intellectual Property
Focus Areas

Patents, Trademarks


Selected to Super Lawyers for 11 yearsbottom-image

Super Lawyers: 2010 - 2020

Certificates and Credentials

Florida Bar Board of Legal Specialization

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About David Sigalow

Admitted: 1997, Florida

Professional Webpage: https://allendyer.com/attorney/david-l-sigalow/


  • Managing Intellectual Property magazine: IP Star, 2014
  • Orlando Magazine Best Lawyers: 2012 – 2014
  • Trademark Insider: Top 50 Trademark Filer 2010
  • Florida Super Lawyers: 2010 – 2018
  • Best Lawyers in America, Copyright Law, since 2012
  • Best Lawyers in America: since 2011
  • Best Lawyers in America, Lawyer of the Year, 2018 – Trademark Law
  • IP Star in the 2019/20 edition of IPSTARS

Bar/Professional Activity:

  • United States Patent and Trademark Office
  • United States District Courts: Western District of Texas, Southern District of New York, District of Connecticut, Northern District of Illinois
  • Florida, 1997
  • Illinois, 1980
  • New York, 1986

Scholarly Lectures/Writings:

  • Adjunct Professor, University of Phoenix, Orlando Division, 1999 – present (graduate studies program)
  • “Legal Q & A”, American Collegiate Licensing Association Quarterly Newsletter, 1992 ” 199 1995
  • “Licensing Law 1994,” The Licensing Journal, January 1995
  • “Licensing Law 1993-1994,” “The Year in Review” New York Patent, Trademark and Copyright Law Association Intellectual Property Annual
  • “Insurance and Indemnification Provisions in Trademark License Agreements”, The Licensing Journal, January, 1992

Educational Background:

  • Northwestern University, B.A., Biology, 1977
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Office Location for David L. Sigalow

255 South Orange Avenue
Suite 1401
Orlando, FL 32801

Phone: 305-707-5998

Fax: 407-841-2343

David L. Sigalow:

Last Updated: 3/24/2020

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