[ipaddr]

Wouldn't the patent be expired?

[jtwaleson]

Yes, there’s a 20 year maximum duration for patents. Depending on some technicalities it could be a year or two longer but definitely under 26. Unless someone created additional patents with improvements.

[virtue3]

potentially? but you can also extend a patent by adding to it by patenting an improvement on the patent. :/

[account42]

That doesn't extend the original patent duration, it's just a new patent for a related invention.