I was looking for some Torx head fasteners and found some that claim to have "star" heads. They look like Torx heads…
Are they the same?
Has it really been long enough for the Torx patents to run out?
Perhaps that is why there is Torx Plus now.
After the Torx patent expired, ISO 10664 was created that described the Torx design.
"Torx Plus" is also a trademark. The Torx Plus design was developed to handle more torque and that design is under a patent until 2019.
Today, only the Torx company can use the name Torx, but there are "generics" now which have a physically identical design.
The "generics" typically refer to that design as a
star bit or head. The "generic" star should be physically identical to the Torx design.