US Patent Office Rules in Favor of Continuous Composites on Petitions Filed by 3D Printer OEM Markforged

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In July, 2021, 3D printing materials manufacturer Continuous Composites filed a lawsuit against original equipment manufacturer (OEM) Markforged, a Massachusetts based company that specializes in 3D printing hardware. The lawsuit alleged that Markforged committed copyright infringement on five patents owned by Continuous Composites, for the latter company’s continuous fiber 3D (CF3D) printing materials.

Continuous Composites is seeking monetary damages for what it alleges to be past instances of copyright infringement, in addition to an injunction requiring Markforged to stop using the IP in question. That lawsuit is still ongoing, though it may have just hit a major inflection point. The Patent Trial & Appeal Board (PTAB) of the US Patent & Trademark Office (USPTO) has denied six petitions against Continuous Composites’ claims, which were filed by Markforged shortly after the company was initially hit with Continuous Composites’ lawsuit.

Image courtesy of Markforged

This announcement comes about six weeks after Markforged announced it had made an 8-K filing with the SEC. In his post about the filing, 3DPrint.com editor-in-chief, Michael Molitch-Hou, pointed out that an 8K filing is may be followed by a merger involving the company that made the filing.

It is still unknown, whether or not Markforged will merge with another company. Nevertheless, the present development seems bound to impact that question, if only in terms of creating unwarranted negative perception, but especially, of course, if it leads to Continuous Composites ultimately winning its lawsuit against Markforged.

Image courtesy of Continuous Composites

On the other hand, the ruling against Markforged in this case doesn’t necessarily indicate that the company will lose in Continuous Composites’ case against it, either. Moreover, it’s worth considering what the IP’s actual value is, in this instance. Even if Continuous Composites does rightly prove infringement on the materials patent, Markforged would still have been one of the parties responsible for making the materials valuable, by having created the successful scalable model for using them. Along those lines, Continuous Composites could be trying to use the lawsuit as a gateway towards forcing a merger with Markforged.

Whatever the outcome, one thing is clear: other companies like to sue Markforged. That alone makes the company intriguing, albeit potentially fatal for its ability to grow.

Finally, this case is a harbinger of a trend that’s going to shape the future of AM, which is precisely the question of how much IP will matter for the industry’s growth, in general. From a philosophical perspective, the last booming decade of 3D printing were essentially founded on the principles of open source. But that’s increasingly coming into conflict with the fact that AM’s biggest stakeholders have both a profit and a national security concern in protecting the trade secrets of all the technologies involved.

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