LexDanaLexDanabeta
Inventor

Robert E. Grimes

Inventor
Cypress, TX, US

Overview

13→
Patents
1980–2020
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 13 as inventor

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

E21Bprimary
E21BEarth or rock drilling86%
H04BTransmission7%
H04LTransmission of digital information, e.g. telegraphic communication7%
PatentTitleYear
10,689,911Roller cone earth-boring rotary drill bits including disk heels and related systems and methods20206,227,314'Inclined leg earth-boring bit'20016,050,354'Rolling cutter bit with shear cutting gage'20005,979,575'Hybrid rock bit'19995,697,462'Earth-boring bit having improved cutting structure'19975,655,612'Earth-boring bit with shear cutting gage'19975,542,485'Earth-boring bit with improved cutting structure'19965,479,997'Earth-boring bit with improved cutting structure'19965,467,836'Fixed cutter bit with shear cutting gage'19955,351,768'Earth-boring bit with improved cutting structure'19945,323,865'Earth-boring bit with an advantageous insert cutting structure'19945,287,936'Rolling cone bit with shear cutting gage'19944,227,255'Signal classifier'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980Patents assigned to TELCOM INC (1)· patent assignee history
1980Based in Leesburg, VA, US· patent location history
1994–2001Patents assigned to BAKER HUGHES INC (11)· patent assignee history
1994–1997Based in Cypress, TX, US· patent location history
1997–2020Based in Houston, TX, US· patent location history
2020Patents assigned to BAKER HUGHES A GE CO LLC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BAKER HUGHES INC111994–2001
BAKER HUGHES A GE CO LLC12020
TELCOM INC11980
Locations
LocationPatentsSpan
Cypress, Texas, US71994–1997
Houston, Texas, US51997–2020
Leesburg, Virginia, US11980