Brandon James Leonard

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Wellesley, CA

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Patents Grantslast 30 patents

Information Patent Grant
Face mask for filtering air and air monitoring system
- Patent number 11,241,594
- Issue date Feb 8, 2022
- O2 INDUSTRIES INC.
- Richard Devin Szasz
- A62 - LIFE-SAVING FIRE-FIGHTING

Patents Applicationslast 30 patents

Information Patent Application
FACE MASK FOR FILTERING AIR AND AIR MONITORING SYSTEM
- Publication number 20190358473
- Publication date Nov 28, 2019
- CANADA PROSPER APPAREL LTD.
- Richard Devin Szasz
- A62 - LIFE-SAVING FIRE-FIGHTING