Leo Wiesner

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Kew Gardens, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Electronic timepiece for indicating digital subdivisions of time in...
- Patent number 4,385,842
- Issue date May 31, 1983
- Timex Corporation
- Leo Wiesner
- G04 - HOROLOGY
Information Patent Grant
Electrochromic display switching and holding arrangement
- Patent number 4,246,579
- Issue date Jan 20, 1981
- Timex Corporation
- Leo Wiesner
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Watch display
- Patent number 4,245,335
- Issue date Jan 13, 1981
- Timex Corporation
- Leo Wiesner
- G04 - HOROLOGY
Information Patent Grant
Hybrid horological display using time modulation
- Patent number 4,121,415
- Issue date Oct 24, 1978
- Timex Corporation
- William C. Crutcher
- G04 - HOROLOGY
Information Patent Grant
Crystal oscillator with reduced power consumption
- Patent number 4,117,421
- Issue date Sep 26, 1978
- Timex Corporation
- Leo Wiesner
- H03 - BASIC ELECTRONIC CIRCUITRY