Most Secure Key Lock, CAM Lock, ATM Lock, Vending Machine Lock Manufacturer – Make Lock Company
What to do if your lock patent is infringed? See how MAKE takes legal action to defend its innovative achievements.
Case Summary
In October 2025, Xiamen MAKE Technology Co., Ltd. (hereinafter referred to as MAKE) sued Ningbo XX Lock Industry Co., Ltd. (hereinafter referred to as Ningbo XX) and Cixi XX Industrial Co., Ltd. (hereinafter referred to as Cixi XX) for patent infringement.
The reason was that a password lock produced and sold by Ningbo XX seriously infringed on a utility model patent owned by MAKE. Given that Cixi XX and Ningbo XX share a single shareholder and may be jointly liable, MAKE legally requested compensation for economic losses from both companies.
Case Analysis
On February 5, 2015, MAKE applied to the State Intellectual Property Office for a utility model patent titled “A Password Lock Structure That Allows for Easy Password Recovery,” which was granted on September 2, 2015, with patent number ZL201520081730.9.
This patented product is the MK708. When a user forgets the password, they can retrieve it using a master key. This is simpler and more convenient than the traditional “probe + master key” password retrieval method.
The specific operation is:
Insert the master key to position and unlock.
Turn the dials from top to bottom until couldn’t be moved on.
Find the forgotten codes seccessfully.
The court reviewed and determined that MAKE legally holds this patent, and the patent right is legal and valid and should be protected by law. The technical solution used in Ningbo XX’s password lock falls within the protection scope of MAKE utility model patent. Furthermore, in December 2024, without MAKE permission, Ningbo XX manufactured, sold, and offered to sell the infringing product within the protection scope of MAKE patent rights, constituting patent infringement under patent law.
Therefore, MAKE is entitled to civil compensation.
Case Outcome
Ningbo XX should bear civil liability for infringing on MAKE patent rights. Cixi XX failed to provide evidence to prove that its assets are independent of Ningbo XX’s assets and must bear joint and several liability.
According to the court ruling [Note: Civil Judgment No. (2025) Zhe02 Minchu 1593], Ningbo XX Tong and Cixi XX Tong were ordered to compensate MAKE tens of thousands of yuan for economic losses.
Recently, the full amount of the compensation has been received, and MAKE legitimate rights and interests have been effectively protected.
Winning the lawsuit is not the end, but rather a testament to MAKE years of dedication to R&D and respect for innovation – we build our core competitiveness with patents and win the future with technology.
Since its establishment, the company has increased its R&D expenditure ratio year by year, expanded its high-level technical team, and the number of authorized patents has continued to rise – every investment has been transformed into the safety, reliability, and leading edge of our products.
To date, the company has gathered more than 130 professional R&D engineers, driving product innovation and reliability upgrades; and has obtained more than 500 domestic and international patents, many of which fill gaps in the industry. This is not only MAKE technological strength, but also our solid guarantee for continuously delivering high-quality locks to our customers.
In the future, we will continue to focus on innovation, build a strong foundation with cutting-edge technology, and promote the high-quality development of the lock industry.