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Inventor

Michael S. Chelf

Inventor
Humble, TX, US

Overview

1→
Patents
2017
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 1 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

E21Bprimary
E21BEarth or rock drilling100%
PatentTitleYear
9,631,437'Systems and methods for managing pressures in casing annuli of subterranean wells'2017

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2017Patents assigned to BAKER DAVID A (1)· patent assignee history
2017Patents assigned to CHELF MICHAEL S (1)· patent assignee history
2017Patents assigned to DALE BRUCE A (1)· patent assignee history
2017Patents assigned to EXXONMOBIL UPSTREAM RES CO (1)· patent assignee history
2017Patents assigned to YEH CHARLES S (1)· patent assignee history
2017Based in Humble, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BAKER DAVID A12017
CHELF MICHAEL Sself12017
DALE BRUCE A12017
EXXONMOBIL UPSTREAM RES CO12017
YEH CHARLES S12017
Locations
LocationPatentsSpan
Humble, Texas, US12017