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Inventor
BARNHART DANIEL R
US
2 patents
⚠️ This page may combine multiple inventors who share the name “BARNHART DANIEL R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VETCO GRAY INC
1 patent
US10138698B2
Nov 27, 2018
External locking mechanism for seal energizing ring
VETCO GRAY INC
2 citations
67
BARNHART DANIEL R
1 patent
US9057231B2
Jun 16, 2015
Energizing ring divot back-out lock
BARNHART DANIEL R
1 citations
39