US Patent Issued to PATEK PHILIPPE SA GENEVE on Sept. 9 for "Method of making a timepiece spring from monocrystalline material and timepiece spring obtained by this method" (French Inventor)

ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,411,456, issued on Sept. 9, was assigned to PATEK PHILIPPE SA GENEVE (Geneva).

"Method of making a timepiece spring from monocrystalline material and timepiece spring obtained by this method" was invented by Jean-Luc Bucaille (Presilly, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a method of making a timepiece spring from monocrystalline material including the following steps: drawing the spring; identifying one or more zones of weakness of the spring in which or in at least one of which the spring will break in the event of excessive deformation; manufacturing the spring from a wafer of monocrystalline material extending in a de...