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11

there are at least: KRE-O (not sure if this is compatible in size, but it looks exactly like LEGO) Enlighten Best-Lock Blockmen (out of production) Cobi (wich you already listed) SuperBlox iDol Kazi (looks like poor quality) Sluban (out of production) Mega Blocks Super Blocks (out of production) Custom-Crazy Sidan Toys Arealight Brickforge Christo ...


10

from the german wikipedia entry (translated with my poor english-skills): The Federal Court of germany opened the market for LEGO-like bricks on december 2nd 2004 The European Court of Justice decided in september 2010 that LEGO-Bricks can be copied as they aren't protected by patents anymore so at least in europe there doesn't seem to be a problem in ...


7

LEGO is a multinational corporation. Patents, laws and regulations vary in different countries. Moreover in, many cases, even if there is an operation recognized as illegal, enforcement may be difficult to achieve. As a result, a proliferation of compatible brands and clones (fake LEGO) do exist. There is also the edge cases of artists selling custom ...


6

As you say, LEGO is very tight with legal issues, so if custom molding was entirely illegal, it's likely we wouldn't see such companies, or maybe in unreachable countries only. Now, LEGO may be tight with legal issues, but on the other hand they know how to be benevolent when it benefits them. (Consider the openness around the various Mindstorms systems, ...


3

(I am not a lawyer) The key thing now is that the basic brick designs (studs on top and tubes underneath) are no longer covered by patents, which is how mega-blocks et. al managed to survive and create "LEGO Compatible" components - without that, LEGO would have taken them down completely. What then remains is the copyright and trade marks of the LEGO ...


3

Here are a few: BrickTW Character do Dr Who and HM Armed forces themed sets and figures. Click Brick HiTechnic produce Mindstorms compatible sensors Kids Connection K'Nex prduce lego-compatible bricks. Their product can be used to interconnect Lego and K'Nex. ME Models sell compatible train tracks. M.Y Building Bricks Ritvik is a former name of Mega Blocks ...


1

From the Wikipedia Lego Group article: The LEGO Group has attempted to trademark the "LEGO Indicia", the studded appearance of the LEGO brick, hoping to stop production of Mega Bloks. On 24 May 2002, the Federal Court of Canada dismissed the case, asserting the design is functional and therefore ineligible for trademark protection [4]. The LEGO Group's ...


1

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



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