Hubert Portmann

Person

6023 Rothenburg, CH

People

Patents Grantslast 30 patents

Information Patent Grant
Device for controlling the functions of an electronic watch
- Patent number 4,477,194
- Issue date Oct 16, 1984
- Ebauches, S.A.
- Jean-Georges Michel
- G04 - HOROLOGY
Information Patent Grant
Presettable digital time-piece display system
- Patent number 4,431,314
- Issue date Feb 14, 1984
- Ebauches S.A.
- Hubert Portmann
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Passive electro-optical display with screen and control electrodes
- Patent number 4,429,955
- Issue date Feb 7, 1984
- Asulab S.A.
- Hubert Portmann
- G02 - OPTICS
Information Patent Grant
Liquid crystal display cell having capacitance compensation
- Patent number 4,425,027
- Issue date Jan 10, 1984
- Asulab, S.A.
- Hubert Portmann
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Novel control means for an electrochromic display
- Patent number 4,412,215
- Issue date Oct 25, 1983
- Ebauches, S.A.
- Hubert Portmann
- G02 - OPTICS
Information Patent Grant
Device for charging an accumulator from an electrical energy source...
- Patent number 4,291,266
- Issue date Sep 22, 1981
- Ebauches S.A.
- Hubert Portmann
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic watch
- Patent number 4,145,872
- Issue date Mar 27, 1979
- Ebauches S.A.
- Hubert Portmann
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Safety device for battery-operated watches
- Patent number 4,144,704
- Issue date Mar 20, 1979
- Ebauches S.A.
- Hubert Portmann
- G04 - HOROLOGY
Information Patent Grant
Electronic instrument
- Patent number 4,139,279
- Issue date Feb 13, 1979
- Ebauches S.A.
- Claude Laesser
- G02 - OPTICS
Information Patent Grant
Device for enabling an accumulator to be recharged from a source of...
- Patent number 4,134,057
- Issue date Jan 9, 1979
- Ebauches S.A.
- Hubert Portmann
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Universal electronic timepiece
- Patent number 4,109,457
- Issue date Aug 29, 1978
- Ebauches S.A.
- Claude Laesser
- G04 - HOROLOGY
Information Patent Grant
Voltage multiplier for an electronic time apparatus
- Patent number 4,068,295
- Issue date Jan 10, 1978
- Ebauches S.A.
- Hubert Portmann
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control device for an electronic wrist watch
- Patent number 4,030,284
- Issue date Jun 21, 1977
- Ebauches S.A.
- Hubert Portmann
- G04 - HOROLOGY
Information Patent Grant
Control and correction circuit for an electronic watch
- Patent number 4,024,678
- Issue date May 24, 1977
- Ebauches S.A.
- Hubert Portmann
- G04 - HOROLOGY
Information Patent Grant
Indicator for the condition of a battery operating a timepiece
- Patent number 3,993,985
- Issue date Nov 23, 1976
- Ebauches S.A.
- Remy Chopard
- G01 - MEASURING TESTING
Information Patent Grant
Control device for setting a timepiece
- Patent number 3,943,696
- Issue date Mar 16, 1976
- Ebauches S.A.
- Hubert Portmann
- G04 - HOROLOGY

Hubert Portmann

Person

Patents Grantslast 30 patents

Device for controlling the functions of an electronic watch

Presettable digital time-piece display system

Passive electro-optical display with screen and control electrodes

Liquid crystal display cell having capacitance compensation

Novel control means for an electrochromic display

Device for charging an accumulator from an electrical energy source...

Electronic watch

Safety device for battery-operated watches

Electronic instrument

Device for enabling an accumulator to be recharged from a source of...

Universal electronic timepiece

Voltage multiplier for an electronic time apparatus

Control device for an electronic wrist watch

Control and correction circuit for an electronic watch

Indicator for the condition of a battery operating a timepiece

Control device for setting a timepiece