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Inventor
TSAI YIH-SHYANG
CA
2 patents
Patents
2 patents
US12031305B2
Jul 9, 2024
Backwater flow detection method
BACKWATER SOLUTIONS CANADA INC
0 citations
47
US11560697B2
Jan 24, 2023
Backwater flow detection device
BACKWATER SOLUTIONS CANADA INC
0 citations
47