Inventor

TRUMPY KASPAR

CH5 patents

⚠️ This page may combine multiple inventors who share the name “TRUMPY KASPAR”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ETA SA MFT HORLOGERE SUISSE

2 patents

US10444706B2Oct 15, 2019

Spiral spring for a sprung balance spiral resonator and method for manufacturing the same

ETA SA MFT HORLOGERE SUISSE1 citations60

US9239569B2Jan 19, 2016

Timepiece balance spring

ETA SA MFT HORLOGERE SUISSE1 citations50

SWATCH GROUP RES & DEV LTD

1 patent

US7950846B2May 31, 2011

Coupled resonators for a timepiece

SWATCH GROUP RES & DEV LTD22 citations92

HELFER JEAN-LUC

1 patent

US8480294B2Jul 9, 2013

Balance spring with fixed centre of mass

HELFER JEAN-LUC11 citations81

MONTRES BREGUET SA

1 patent

US9004748B2Apr 14, 2015

Balance spring with two hairsprings and improved isochronism

MONTRES BREGUET SA5 citations71