UNION keyPRIME now patent protected until 2036


UNION has been granted a second patent for its keyPRIMETM reversible key cylinder system, giving a patented lifetime to 2036.


Providing secure key control, the second patent ensures UNION keyPRIMETM offers one of the longest patent protected products in the market. Keys and cylinders can only be ordered, cut or assembled by authorised partners.

Delivering similar benefits and greater value compared to expensive dimple systems, UNION keyPRIMETM is ideally suited for commercial, education and healthcare environments. The solution can be keyed for just one or multiple doors, making it also suitable for residential or SMEs, while cylinder upgrades or replacements are convenient and easy to install.

Boasting a solid 3mm thick key, crafted in nickel silver, the technology combines a contemporary appearance with a proven pin-tumbler design. UNION keyPRIMETM is available as a master key solution, keyed alike or keyed to differ, in euro, single, double, or key and turn cylinders.

The platform offers a range of technical features with performance that goes beyond the standard of BS EN 1303: 2015.

When the platform’s long-lasting patent protection, master keying capabilities, and multiple levels of physical security are all taken into account, UNION keyPRIMETM provides a range of superior performance features over others available on the market. Furthermore, for single cylinders an adjustable cam is offered as standard.

Craig Birch, Product Category Manager at UNION, explains: “Now protected until 2036, the UNION keyPRIMETM delivers the most assured patent protection available on the market, providing long life and peace of mind to users. Offering the same reversible key benefits and greater value than more costly dimple systems, its symmetrical faces and no sharp edges means the key works easily, no matter which way it is inserted.

“Coupled with our 100 years’ experience in master keying, UNION has a heritage that is second to none. We are therefore thrilled be granted this second patent for our keyPRIMETM cylinder system, as we continue to deliver great security and protection to our customers.”