William E. Akers

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Lorton, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Retrofit self-annunciating sprinkler
- Patent number 9,672,712
- Issue date Jun 6, 2017
- William E. Akers
- A62 - LIFE-SAVING FIRE-FIGHTING

Patents Applicationslast 30 patents

Information Patent Application
Retrofit Self-Annunciating Sprinkler
- Publication number 20180144595
- Publication date May 24, 2018
- William E. Akers
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
Retrofit Self-Annunciating Sprinkler
- Publication number 20170319883
- Publication date Nov 9, 2017
- William E. Akers
- G08 - SIGNALLING