I heard that lately a patent for LEGO expired and now everyone can create a company to produce bricks that are compatible with LEGO.

I am wondering how many of such companies are there.

I know one from my country, Cobi. Can you point me another alternatives?

  • 6
    This should really be broken up into questions along the lines of "Is X compatible with Lego?" or "Can I make X compatible with Lego?" Otherwise we will get each answer containing overlapping subsets, and we'll likely miss good advice on specific adapters or techniques. In general, we should not be seeking CW questions or answers at this point in the site's lifetime.
    – user23
    Commented Oct 27, 2011 at 9:12
  • There are many different patents. The ones for the original bricks expired long ago, as patents expire after 20 years.
    – starblue
    Commented Oct 27, 2011 at 12:14
  • I agree with Joe; there's no one set of correct answers. It's a wiki-type question, and is too early for this site.
    – Nathan
    Commented Oct 27, 2011 at 13:33
  • This other SE question is relevant to the patent part : "Are companies producing custom molded LEGO pieces legally entitled to do so?" : bricks.stackexchange.com/questions/250/…
    – jfyelle
    Commented Oct 27, 2011 at 15:38
  • 1
    I think Joe's got the right idea... As appealing as One Big List might seem, questions on individual products are probably a lot more useful to folks researching the products available to them.
    – Shog9
    Commented Nov 20, 2011 at 4:15

3 Answers 3


there are at least:

Note that some of this only produce custom accessories for minifigs, very small sets or exact copies of the official sets, no own really "big" sets like LEGO does


Here are a few:


Brickarms makes nice custom Lego-compatible weapons, accessories, and minifigures.

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