HP

Hubert Portmann

ES Ebauches, S.A.: 4 patents #5 of 60Top 9%
AS Asulab S.A.: 2 patents #64 of 196Top 35%
Overall (All Time): #896,313 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4477194 Device for controlling the functions of an electronic watch Jean-Georges Michel, Ali Schneiter 1984-10-16
4431314 Presettable digital time-piece display system 1984-02-14
4429955 Passive electro-optical display with screen and control electrodes 1984-02-07
4425027 Liquid crystal display cell having capacitance compensation 1984-01-10
4412215 Novel control means for an electrochromic display 1983-10-25
4291266 Device for charging an accumulator from an electrical energy source more particularly for an electronic watch 1981-09-22