Inventor

HOANG CHAU

US5 patents

⚠️ This page may combine multiple inventors who share the name “HOANG CHAU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HOANG CHAU

2 patents

US8672290B2Mar 18, 2014

Self aligning spherical backseat assembly for a valve

HOANG CHAU2 citations51

US8870186B2Oct 28, 2014

Seal assembly for a casing hanger

HOANG CHAU3 citations50

VETCO GRAY INC ABB

1 patent

US6454015B1Sep 24, 2002

Shearing gate valve

VETCO GRAY INC ABB92 citations92

VETCO GRAY INC

1 patent

US9890598B2Feb 13, 2018

Anti-rotation wedge

VETCO GRAY INC1 citations49

BAKER HUGHES OILFIELD OPERATIONS LLC

1 patent

US11542774B2Jan 3, 2023

Locking energizing ring

BAKER HUGHES OILFIELD OPERATIONS LLC1 citations47