Inventor
Diefenbach Destry
US6 patents
Patents
6 patentsUS9542852B2Jan 10, 2017
Mass transit safety notification system and device
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Mass transit safety notification system and device
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US11827257B2Nov 28, 2023
Mass transit safety notification system and device
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US12162524B2Dec 10, 2024
Mass transit safety notification system and device
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US12304538B2May 20, 2025
Railway safety notification system and device with proportional warnings
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Railway safety notification system and device with track and direction information
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