Plaintiff

SHENZHEN TUOZHU TECHNOLOGY CO., LTD.

2 cases as plaintiff.

Company profile

SHENZHEN TUOZHU TECHNOLOGY CO., LTD., often known as Tuozhu or as the parent company of Bambu Lab, is a private Chinese consumer technology firm headquartered in Shenzhen, Guangdong, China. Founded in 2020, the company has rapidly grown, with estimated annual revenues reaching 5.5-6 billion yuan (approximately US$840 million) and a net profit close to 2 billion yuan (approximately US$280 million) as of November 2025. It reportedly employs over 1,000 people and has captured a significant global market share in 3D printer shipments.

The company's primary operations revolve around its Bambu Lab brand, which manufactures desktop 3D printers, filaments, and accessories. Bambu Lab is known for its integrated 3D printing solutions, including features like automatic leveling, fully enclosed structures, and multi-color printing systems. Additionally, Shenzhen Tuozhu Technology operates the MakerWorld platform, an online community for 3D models.

SHENZHEN TUOZHU TECHNOLOGY CO., LTD. is an operating company engaged in patent litigation, demonstrating a posture as both a defendant and a plaintiff in disputes. The company has been named as a defendant in one case in the U.S. District Court for the Eastern District of Texas, Marshall Division, and has initiated two plaintiff cases at the Patent Trial and Appeal Board (PTAB) of the USPTO. This pattern suggests an active defense against infringement allegations, often by challenging the validity of asserted patents.

All tracked litigation involves Stratasys, Inc. as the opposing party, indicating a direct dispute within the 3D printing industry. The U.S. District Court case against Shenzhen Tuozhu Technology Co., Ltd. involves allegations from Stratasys that Bambu Lab's 3D printers infringe on patents, including one related to heated build platforms acquired by Stratasys from Arevo, Inc. Shenzhen Tuozhu Technology Co., Ltd. has also secured a patent for a new 3D printer heatbed design, which could be relevant to its legal position against Stratasys.

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SHENZHEN TUOZHU TECHNOLOGY CO., LTD. et al. v. Stratasys, Inc.

Instituted
Docket:
IPR2025-00257
Filed:
2025-01-14
Patents:9592660

This Inter Partes Review was initiated by multiple petitioners challenging US Patent 9592660, owned by Stratasys, Inc. The PTAB has instituted the review, which is currently pending.

SHENZHEN TUOZHU TECHNOLOGY CO., LTD. et al. v. Stratasys Inc.

Instituted and pending
Docket:
IPR2025-00321
Filed:
2024-12-17

An Inter Partes Review petition filed by SHENZHEN TUOZHU TECHNOLOGY CO., LTD. and other entities against Stratasys Inc. challenging the validity of US Patent 9421713. The PTAB ruled on June 9, 2026, that the patent US9421713B2 is valid.