Edward R. Marquardt

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Silverdale, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Distance limiting self-retractable lifeline
- Patent number 8,701,833
- Issue date Apr 22, 2014
- GF Protection Inc.
- Edward R. Marquardt
- A62 - LIFE-SAVING FIRE-FIGHTING

Patents Applicationslast 30 patents

Information Patent Application
Distance limiting self-retractable lifeline
- Publication number 20090260922
- Publication date Oct 22, 2009
- GF Protection Inc. d/b/a Guardian Fall Protection
- Edward R. Marquardt
- A62 - LIFE-SAVING FIRE-FIGHTING