Mark Crandall

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San Marcos, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Multifunctional personal alert safety system
- Patent number 5,757,273
- Issue date May 26, 1998
- Detex Corporation
- Mark Crandall
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Optical motion and angular position sensing method and sensor
- Patent number 5,278,414
- Issue date Jan 11, 1994
- Detex Corporation
- Stephan Samuelson
- G08 - SIGNALLING