Inventor
CHIANG MICHAEL
US12 patents
⚠️ This page may combine multiple inventors who share the name “CHIANG MICHAEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RIVER ROCK INC
6 patentsUS9863546B2Jan 9, 2018
Air admittance valve preventing mephitis overflow
RIVER ROCK INC5 citations82
US11047494B2Jun 29, 2021
Air admittance valve preventing mephitis overflow
RIVER ROCK INC2 citations71
US10648752B1May 12, 2020
Winterizing bypass valve system
RIVER ROCK INC3 citations71
US10415712B2Sep 17, 2019
Air admittance valve preventing mephitis overflow
RIVER ROCK INC3 citations71
US11673791B1Jun 13, 2023
Flush and winterizing system
RIVER ROCK INC0 citations60
US11066291B1Jul 20, 2021
Flush and winterizing system
RIVER ROCK INC1 citations60