JH

Jean-Luc Helfer

ES Eta Sa Manufacture Horlogère Suisse: 2 patents #2 of 14Top 15%
SD Swatch Group Research And Development: 1 patents #31 of 72Top 45%
📍 Le Landeron, CH: #1 of 6 inventorsTop 20%
Overall (2020): #85,908 of 565,922Top 20%
3
Patents 2020

Issued Patents 2020

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10866565 Timepiece oscillator with flexure bearings having a long angular stroke Gianni Di Domenico, Dominique Lechot, Jerome Favre, Baptiste Hinaux, Jean-Jacques Born +1 more 2020-12-15
10838364 Mechanical timepiece oscillator which is isochronous in all positions Pascal Winkler, Laurent Klinger 2020-11-17
10564605 Compact balance spring of constant section Yves-Alain Cosandier 2020-02-18