Is selling aftermarket replacement sunglass lenses trademark or patent infringement?

Asked about 3 years ago - Irvine, CA

I want to sell aftermarket replacement Sunglass lenses for brands like Oakley but am afraid of possible infringement issues related to Oakley's trademarks and design patents.

I see a lot of companies that sell similar products or Oakley "style" products but is this legal without the express authorization of Oakley?

Attorney answers (4)

  1. James Juo

    Contributor Level 16

    Answered . Companies that sell Oakley "style" products without the express authorization of Oakley are risking an infringement lawsuit. Oakley and other designer-based companies often are very aggressive in policing and protecting their intellectual property (which makes sense since much of their profit and livelihood stems from intellectual property). So, you are right to be concerned about possible infringement issues related to Oakley's trademarks and patents. That being said, replacement lenses may be considered permissible repair under patent law. This doctrine, however, may be more applicable where the patent is for the entire sunglass frame, and less so for a patent directed towards the lens itself. You should consult with an intellectual property attorney about researching Oakley's trademarks and patents to determine your risks for infringement for your specific situation, and how to proceed. Good luck.

    This answer is for informational purposes only. It is not intended as specific legal advice regarding your... more
  2. Isileli Tupou Manaia Mataele

    Contributor Level 19

    Answered . If you are using Oakley trademark not within the fair use exception then it would be an infringement but simply saying that it is compatible with Oakleys is not infringement.
    If your design incorporates a design that is patented that is obvious improvement then it is infringement but if it is an improvement that is not obvious then it does not infringe. If you're trying to replicate what China does, don't. China doesn't enforce treaties regarding intellectual property but insists the US does for them. It is not fair but that is the reality.

    This is just my opinion and not a comprehensive answer. You assume the risk because this answer may not apply to... more
  3. Matthew Charles Lapple

    Contributor Level 9

    Answered . I have represented clients against Oakley on patent matters. Historically, Oakley is very aggressive in enforcing their patents and trademarks through litigation. They have many patents on both their sunglasses as a whole (for example, dealing with reducing distortion of images for wraparound glasses) and for their lenses specifically (for example, on the color-mirrored coatings).

    Before you proceed, you need to hire a IP attorney to review exactly what you are considering and to analyze any patents or trademarks that may be relevant.

    The information contained in this answer is intended to provide general information only and not legal advice. You... more
  4. Raymond C. Meiers Jr.

    Contributor Level 7

    Answered . You will have to conduct a clearance for each lens you want to sell. A clearance is simply a search of existing patents; if a patent does cover the lens, hopefully you will find it and either (1) license the patent from Oakley (not likely) or (2) avoid problems by not selling that lens.

    I would be surprised if lens themselves are protected by utility or design patents, but I could be wrong. The Patent Office website ( has a very useful search tool for searching patents. Good luck!

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