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About me

Mr. Christopher is a Registered Patent Attorney.  His practice encompasses all aspects of patent, trademark, and copyright portfolio development, management, exploitation and enforcement, as well as business transactions related to intellectual property.  He works with publicly traded and privately held companies (domestic and international), start-up and early stage companies, individuals, universities, and investors in a broad range of industries, including medical and dental devices, aerospace and automotive hardware, marine hardware, refrigeration equipment, computer hardware, industrial machinery, electro-mechanical instrumentation, consumer goods, dietary supplements, and sports equipment.  Mr. Christopher provides counsel with respect to intellectual property matters from start-up through financing rounds, initial pubic offerings, mergers, acquisitions, partnering arrangements, and enforcement actions.  A former U.S. Air Force fighter pilot, Mr. Christopher was awarded a B.S. degree from the United States Air Force Academy and a J.D. from Northeastern University.  He is licensed to practice law in Florida and Massachusetts and is admitted to the U.S. Court of Appeals for the Federal Circuit and the First Circuit, as well as the U.S. District Court for the District of Massachusetts.  An active member of the American Intellectual Property Law Association (AIPLA) for many years, he has served as an Association Delegate to Asia, meeting with and making presentations to senior legal and government officials in Hong Kong, China and S. Korea.  Mr. Christopher is also a member of the International Trademark Association (INTA), the Broward County Bar Association where he serves as Chairman of the Corporate Counsel Section, and the Intellectual Property Law Association of Florida.  Mr. Christopher has been recognized by South Florida CEO Magazine as one of Top Lawyers in South Florida, and he has been selected by his peers for inclusion in The Best Lawyers in America.


Languages spoken: French

Practice areas


  1. Patent Application: 50%
    24 years
  2. Trademark Application: 25%
    24 years
  3. Trademark Infringement: 10%
    22 years
  4. Patent Infringement: 10%
    22 years
  5. Mediation: 5%


Payment types:

Cash, Check, Credit card

Attorney endorsements

2 total 

Are you an attorney? Endorse this lawyer

  • Richard Sierra

    It is my pleasure to endorse John. He is a highly competent and dedicated patent attorney.


    Richard Sierra Litigation Attorney
    Relationship: Fellow lawyer in community

  • Michael DellaMonaca

    John is a dedicated professional in the areas of patent and trademark law. I wholeheartedly endorse him, and would recommend his services to clients without hesitation.


    Michael DellaMonaca Estate Planning Attorney
    Relationship: Other

Contact info

200 E Las Olas Blvd Ste 2040
Fort Lauderdale, FL, 333012240

200 East Las Olas Boulevard
Suite 2040
Fort Lauderdale, FL, 33301



FLMember in Good Standing200109/08/2015
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
AV Peer Review RatingMartindale-Hubbell2012
Best LawyerBest Lawyers in America2012
Best LawyerBest Lawyers in America2011
Best LawyerBest Lawyers in America2010
Best LawyerBest Lawyers in America2009
Best LawyerBest Lawyers in America2008
Top LawyerN/A2008
Top LawyerN/A2007
Work experience
TitleCompany nameDuration
Managing PartnerChristopher & Weisberg, P.A.2001 - Present
ShareholderGunster, Yoakley & Stewart2000 - 2001
Junior PartnerNutter McClennen & Fish LLP1996 - 1999
AssociateWeingarten, Schurgin, Gagnebin & Hayes1992 - 1996
Technology SpecialistWeingarten, Schurgin, Gagnebin & Hayes1990 - 1992
Association namePosition nameDuration
Broward County Bar AssociationChairman - Business Law2006 - 2008
Florida Bar AssociationMember2001 - Present
Intellectual Property Law Association of FloridaMember2000 - Present
International Trademark AssociationMember1996 - Present
United States Patent BarRegistered Patent Attorney1993 - Present
Massachusetts Bar AssociationMember1992 - 2000
American Intellectual Property Law AssociationMember1990 - Present
Boston Patent Law AssociationMember1990 - 2000
Publication nameTitleDate
AIPLA Conference Materials: IP Law in ChinaBeyond Bitterness: You Really Can Obtain and Protect Trademarks in China2007
School nameMajorDegreeGraduated
Northeastern University School of LawLawJD - Juris Doctor1992
United States Air Force AcademyN/ABS - Bachelor of Science1980
Speaking engagements
Conference nameTitleDate
AIPLA Road Show - IP Practice in China, Washington, DCTrademark Protection and Enforcement in China2007
Korean Patent Attorney Association Meeting, Seoul, S. KoreaReview of Recent U.S. Federal Case Law on Trademarks2006
Joint AIPLA / Hong Kong Intellectual Property Department Conference, Hong Kong, ChinaDigital Millennium Copyright Act2006
AIPLA Meeting with China’s National Copyright Administration (Copyright Office), Beijing, ChinaDigital Millennium Copyright Act2006
Innovations in New Product Development, Technology & Marketing, Miami, FloridaKey Intellectual Property Considerations for Emerging Technology Companies and Their Government, Venture Cap and Corporate Investors2005