Alexander Wellen

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San Francisco, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Tactile timepiece
- Patent number 7,079,454
- Issue date Jul 18, 2006
- Alexander Wellen
- G04 - HOROLOGY

Patents Applicationslast 30 patents

Information Patent Application
DIGITAL COIN TIMEPIECE FOR TACTILELY DETERMINING ELAPSED TIME
- Publication number 20200241477
- Publication date Jul 30, 2020
- Alexander WELLEN
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
METHOD AND DEVICE FOR TACTILELY READING TIME ON A TOUCH SCREEN
- Publication number 20190332173
- Publication date Oct 31, 2019
- Alexander WELLEN
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Tactile timepiece
- Publication number 20050135198
- Publication date Jun 23, 2005
- Alexander Wellen
- G04 - HOROLOGY