Jingsheng Mechanical & Electrical sued in US by rival Linton over crystal growth equipment patents
Chinese crystal growth equipment maker Jingsheng Mechanical & Electrical (SZ300316) disclosed on September 24 that it is being sued in the U.S. District Court for the Eastern District of Texas by Linton Crystal Technologies Corp., a subsidiary of Beijing Stock Exchange-listed Linton Technologies Group (BJ920368). The lawsuit alleges Jingsheng's crystal growth equipment sold in the U.S. infringes two patents related to seed lifting and rotating systems used in Czochralski crystal growth. Jingsheng stated it has not received formal court documents, denies infringement, and says the matter will not materially impact operations.
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Common ground
- Both sides agree this lawsuit is a strategic move by Linton to slow down Jingsheng's semiconductor expansion, not just a simple patent dispute.
- Both agree the Eastern District of Texas is notoriously plaintiff-friendly, with high win rates for patent plaintiffs.
- Both acknowledge the risk of an ITC exclusion order is real and could block Jingsheng from selling in the U.S. market.
- Both agree the lawsuit validates Jingsheng's technology as a genuine competitive threat to established players.
Points of contention
- Eastern Agent sees Jingsheng's 95% profit drop as a normal transition cost, while Neutral Agent views it as a business model collapse from a dying solar market.
- Eastern Agent argues state-backed policy banks and Chinese government support will shield Jingsheng, but Neutral Agent says that support doesn't pay legal fees or stop ITC orders.
- Eastern Agent believes prepayments from Chinese fabs provide a liquidity buffer, while Neutral Agent counters those funds cover production costs, not legal defense.
- Eastern Agent frames the lawsuit as a speed bump on a highway built by national policy, while Neutral Agent calls it a pothole that could crack the axle given weak financials.
Blind spots
- Both sides underweighted the ITC exclusion order risk initially, though they later acknowledged it.
- Neither fully addressed how customer concentration among financially stressed Chinese fabs could amplify cash flow problems.
- Both missed the potential for the lawsuit to delay Jingsheng's U.S. market entry, which could hurt long-term growth even if they win in court.
WorldAttention’s read
This lawsuit is a strategic weapon aimed at Jingsheng during a vulnerable pivot from solar to semiconductors. While both sides agree it validates Jingsheng's technology as a threat, they clash on whether the company's financial position and state support can weather the costs. The Eastern Agent sees a resilient national champion backed by policy banks and prepaid orders, while the Neutral Agent warns that a 2% net margin and negative cash flow make even a $5-10 million legal fight a serious headwind. The truth likely lies in the middle: the lawsuit is a material distraction and cost, but not a fatal blow, and will probably end in a settlement or cross-license within two years. The real risk is that management time and cash spent on defense slow down the semiconductor ramp, which is exactly what Linton intended.
Reporting timeline
Chinese Equipment Maker Jing Sheng Mechatronics Sued in US by Subsidiary of Rival Liancheng
Jing Sheng Mechatronics (Jingsheng Mechatronics, SZ300316), a Chinese semiconductor and photovoltaic equipment manufacturer with a market value of 53.3 billion yuan, disclosed on September 24 that it has been sued in the United States by Linton Crystal Technologies Corp., a subsidiary of Beijing Stock Exchange-listed rival Liancheng Numerical Control (BJ920368). The lawsuit, filed in the U.S. District Court for the Eastern District of Texas, Marshall Division, alleges that certain crystal growth equipment sold by Jing Sheng in the U.S. infringes on Linton's patents related to a 'Seed lifting and rotating system for use in crystal growth' (patent numbers US11,255,024 B2 and US11,814,746 B2). Jing Sheng stated it has not yet received formal court documents and that its products use technology 'completely inconsistent' with the patents, asserting no infringement. The company said the matter will not materially impact operations. The lawsuit comes as Jing Sheng faces declining performance due to a downturn in the photovoltaic industry, with net profit falling from 4.558 billion yuan in 2023 to 232 million yuan in the first half of 2026. The company is pivoting to semiconductor equipment, with 13.07 billion yuan in semiconductor revenue and over 47 billion yuan in orders in hand as of mid-2026.
Read sourceCrystal Growth Equipment Maker Jingsheng Sued by Rival's US Subsidiary Over Patents
Jingsheng Mechanical & Electrical (SZ300316), a Chinese crystal growth equipment manufacturer with a market cap of 53.3 billion yuan, disclosed on September 24 that it is being sued in the U.S. District Court for the Eastern District of Texas by Linton Crystal Technologies Corp., a wholly owned subsidiary of Beijing Stock Exchange-listed Linton Technologies Group (BJ920368). The lawsuit alleges that Jingsheng's crystal growth equipment sold in the U.S. infringes on two patents related to seed lifting and rotating systems used in Czochralski (CZ) crystal growth. Jingsheng stated it has not yet received formal court documents and that its products use technology entirely different from the patented methods, asserting no infringement. The company said the matter will not materially impact its operations. The lawsuit comes as Jingsheng faces declining profits due to a downturn in the photovoltaic industry, with net profit falling from 4.56 billion yuan in 2023 to 232 million yuan in the first half of 2026. The company is pivoting to semiconductor equipment, holding over 4.7 billion yuan in semiconductor equipment orders as of June 30, 2026.
Read sourceCrystal Growth Equipment Maker Jingsheng Sued by Rival's US Subsidiary Over Patents
On September 24, 2026, Jingsheng Mechanical & Electrical Co., Ltd. (Jingsheng, SZ300316), a Chinese manufacturer of crystal growth equipment with a market cap of 53.3 billion yuan, disclosed a patent infringement lawsuit filed against it in the United States. The plaintiff is Linton Crystal Technologies Corp., a wholly-owned US subsidiary of Linton Technologies Group (BJ920368), a Chinese rival and fellow equipment maker. The lawsuit, filed in the Eastern District of Texas, alleges that Jingsheng's crystal growth furnaces sold in the US infringe on two patents related to seed lifting and rotating systems used in the Czochralski (CZ) crystal growth process. Jingsheng stated it has not yet received formal court documents and denies the allegations, asserting its products use different technology. The company, which is facing declining profits due to a downturn in the photovoltaic solar industry, is pivoting to semiconductor equipment. Its semiconductor equipment and materials business generated 1.307 billion yuan in revenue in the first half of 2026, with an order backlog of over 4.7 billion yuan. Jingsheng said the lawsuit has no material impact on its operations for now and will defend itself.
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Jing Sheng Electromechanics Faces US Patent Lawsuit Over Crystal Growth Equipment
Jing Sheng Electromechanics (300316.SZ) announced that it has learned from public information that Linton Company (Linton Crystal Technologies) has filed a patent infringement lawsuit against the company in the U.S. District Court for the Eastern District of Texas, Marshall Division. The lawsuit alleges that some of Jing Sheng's crystal growth equipment sold in the United States infringes on Linton's patent titled 'Seed lifting and rotating system for use in crystal growth.' As of the announcement, Jing Sheng has not received formal court documents. The company states that its products use a technically different method from the patented technology and that there is no evidence of infringement. Jing Sheng believes the matter will not materially impact its production or operations.
Read sourceChina's Jingsheng Mechanical & Electrical Faces US Patent Lawsuit by Linton Over Crystal Growth Equipment
Jingsheng Mechanical & Electrical (晶盛机电, stock code 300316.SZ) announced on September 24 that it learned from public sources that Linton Corporation has filed a patent infringement lawsuit against the company in the U.S. District Court for the Eastern District of Texas, Marshall Division. The lawsuit alleges that certain crystal growth equipment sold by Jingsheng in the United States infringes on Linton's patent titled 'Seed lifting and rotating system for use in crystal growth.' As of the announcement, Jingsheng stated it has not yet received any formal court documents related to the case. The company claims that from a technical standpoint, its products use a completely different technical method than the one covered by the asserted patent, and that there is no evidence of infringement. Jingsheng stated that the matter will not have a material impact on its production and operations.
Read sourceJing Sheng Electromechanics Faces US Patent Lawsuit by Linton Over Crystal Growth Equipment
Chinese semiconductor equipment manufacturer Jing Sheng Electromechanics (300316.SZ) announced on September 24 that it learned from public sources that Linton Corporation has filed a patent infringement lawsuit against it in the U.S. District Court for the Eastern District of Texas, Marshall Division. The lawsuit alleges that certain crystal growth equipment sold by Jing Sheng in the United States infringes on Linton's patent titled 'Seed lifting and rotating system for use in crystal growth.' As of the announcement, Jing Sheng stated it has not yet received formal court documents related to the case. The company claims that from a technical standpoint, its products use a completely different methodology than the patented technology and that there is no evidence of infringement. Jing Sheng assessed that the lawsuit will have no material impact on its production and operations.