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Frankfurt am Main, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Single phase stepping motor
Patent number
4,340,828
Issue date
Jul 20, 1982
Quarz-Zeit AG
Roland Sudler
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Battery-driven clock with indicator of the end of life of the battery
Patent number
4,315,328
Issue date
Feb 9, 1982
Quarz-Zeit AG
Jean-Francois Schwab
G04 - HOROLOGY
Information
Patent Grant
Single phase stepping motor, particularly for clocks
Patent number
4,267,472
Issue date
May 12, 1981
Quarz-Zeit AG
Roland Sudler
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Pulse control for an electric clock
Patent number
4,254,491
Issue date
Mar 3, 1981
Quarz-Zeit AG
Martin Haub
G04 - HOROLOGY
Information
Patent Grant
Electric clock
Patent number
4,250,576
Issue date
Feb 10, 1981
Quarz-Zeit AG
Roland Sudler
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Single phase stepping motor
Patent number
4,217,509
Issue date
Aug 12, 1980
Quarz-Zeit AG
Roland Sudler
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Single phase stepping motor
Patent number
4,206,377
Issue date
Jun 3, 1980
Quarz-Zeit AG
Roland Sudler
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Single phase stepping motor
Patent number
4,206,375
Issue date
Jun 3, 1980
Quarz-Zeit AG
Roland Sudler
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Single phase stepping motor
Patent number
4,206,376
Issue date
Jun 3, 1980
Quarz-Zeit AG
Roland Sudler
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Single phase stepping motor
Patent number
4,201,929
Issue date
May 6, 1980
Quarz-Zeit AG
Roland Sudler
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Electronic clock, particularly a quartz clock
Patent number
4,176,515
Issue date
Dec 4, 1979
Quarz-Zeit AG
Manfred Stein
G04 - HOROLOGY
Information
Patent Grant
Method and system for testing the accuracy of an electronic clock
Patent number
4,142,147
Issue date
Feb 27, 1979
Quarz-Zeit AG
Manfred Stein
G04 - HOROLOGY
Patents Applications
last 30 patents
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