David L. Ratner

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Santa Monica, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Programmable touch-activated signaling device
- Patent number 8,493,217
- Issue date Jul 23, 2013
- Magibrands, Inc.
- Wayne H. Biessman
- G08 - SIGNALLING
Information Patent Grant
Window-attached alerting device
- Patent number 7,283,039
- Issue date Oct 16, 2007
- David L. Ratner
- G08 - SIGNALLING

Patents Applicationslast 30 patents

Information Patent Application
Surface-Attached Alerting Device
- Publication number 20150109134
- Publication date Apr 23, 2015
- Magibrands, Inc.
- David L. Ratner
- G08 - SIGNALLING
Information Patent Application
PROGRAMMABLE TOUCH-ACTIVATED SIGNALING DEVICE
- Publication number 20110199215
- Publication date Aug 18, 2011
- Magibrands, Inc.
- Wayne H. Biessman
- G08 - SIGNALLING
Information Patent Application
Window-attached alerting device
- Publication number 20070146122
- Publication date Jun 28, 2007
- David L. Ratner
- G08 - SIGNALLING