ALEXANDRIA, Va., June 16 -- United States Patent no. 12,303,433, issued on May 20, was assigned to Ziemer Ophthalmic Systems AG (Port, Switzerland).
"Ophthalmological device for refractive correction of a cornea" was invented by Christian Rathjen (Bremen, Germany) and Michael Steinlechner (Zurich).
According to the abstract* released by the U.S. Patent & Trademark Office: "An ophthalmological device for refractive correction of a cornea comprises a laser source, a focusing optical module, a scanner system and an electronic circuit. The electronic circuit is configured to control the scanner system to move the focal spot of the pulsed laser beam generated by the laser source to generate a first part of a void volume ablating cornea tissue ...