“There were a lot of fairly eccentric designs in the patents from this era,” says ... tilt-rotor/tilt-wing helicopter-airplane that Nikola Tesla dreamed up in 1921—until this summer, on ...

The military calls it research, but declassified patents tell a different story. What began as Nikola Tesla's dream of free energy for humanity may have become the world's most powerful weapon.

The lawsuit alleges Tesla does this to close out warranties early on their products. The lawsuit, however, stands on a filed patent which may or may not be in use in Tesla vehicles. Tesla owner ...

Electric car maker Tesla is still facing the $2 billion lawsuit, filed against the Elon Musk-run company by hydrogen trucking startup Nikola over design patents infringement. A US federal judge ...