Inventor

Robert G. Howard

Inventor
Duncan, OK, US

Overview

13→
Patents
1985–2021
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 drilling80%
F15BSystems acting by means of fluids in general7%
F16LPipes7%
G01NInvestigating or analysing materials by determining their chemical or physical properties7%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985Based in Alta Loma, CA, US· patent location history
1991Based in Annapolis, MD, US· patent location history
2001–2015Patents assigned to HALLIBURTON ENERGY SERV INC (10)· patent assignee history
2001–2021Based in Duncan, OK, US· patent location history
2012Patents assigned to BAILEY MICHAEL BRENT (1)· patent assignee history
2012Patents assigned to EHTESHAM MUHAMMAD ASIF (1)· patent assignee history
2012Patents assigned to HOWARD ROBERT (1)· patent assignee history
2021Patents assigned to HALLIBURTON ENERGY SERVICES INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HALLIBURTON ENERGY SERV INC102001–2015
BAILEY MICHAEL BRENT12012
EHTESHAM MUHAMMAD ASIF12012
HALLIBURTON ENERGY SERVICES INC12021
HOWARD ROBERTself12012
Locations
LocationPatentsSpan
Duncan, OK, US112001–2021
Annapolis, Maryland, US11991
Alta Loma, California, US11985