Customized keyways can be made available through patent protection. This helps in controlling duplicate keys, and also keeps track of the issued keys.

https://blogfreely.net/mirienvhdm/h1-b-what-can-you-do-to-gain-access-back-to-your-car-after-being-locked-out

We offer custom keyways featuring patented security to stop duplication, and to track keys to ensure accountability.