Inventor
Alan B. Duell
Inventor
Duncan, OK, US
Overview
Patents· 33 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling48%
Y10TTechnical subjects covered by former us classification21%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material18%
F16LPipes10%
A47BTables1%
B01FMixing, e.g. dissolving, emulsifying or dispersing1%
PatentTitleYear
8,205,680'Expandable connection'20127,967,064'Apparatus for radially expanding and plastically deforming a tubular member'20117,665,532'Pipeline'20107,603,758'Method of coupling a tubular member'20097,438,132'Concentric pipes expanded at the pipe ends and method of forming'20087,434,618'Apparatus for expanding a tubular member'20087,357,188'Mono-diameter wellbore casing'20087,284,898'System and method for mixing water and non-aqueous materials using measured water concentration to control addition of ingredients'20077,240,728'Expandable tubulars with a radial passage and wall portions with different wall thicknesses'20077,240,729'Apparatus for expanding a tubular member'20077,216,701'Apparatus for expanding a tubular member'20077,198,100'Apparatus for expanding a tubular member'20077,195,061'Apparatus for expanding a tubular member'20077,159,667'Method of coupling a tubular member to a preexisting structure'20077,121,337'Apparatus for expanding a tubular member'20067,108,072'Lubrication and self-cleaning system for expansion mandrel'20067,077,213'Expansion cone for radially expanding tubular members'20067,077,211'Method of creating a casing in a borehole'20067,055,608'Forming a wellbore casing while simultaneously drilling a wellbore'20067,048,067'Wellbore casing repair'20067,044,218'Apparatus for radially expanding tubular members'20067,036,582'Expansion cone for radially expanding tubular members'20066,968,618'Expandable connector'20056,892,819'Forming a wellbore casing while simultaneously drilling a wellbore'20056,640,903'Forming a wellbore casing while simultaneously drilling a wellbore'20036,604,763'Expandable connector'20036,557,640'Lubrication and self-cleaning system for expansion mandrel'20035,526,878'Stage cementer with integral inflation packer'19965,348,089'Method and apparatus for the multiple stage cementing of a casing string in a well'19945,318,118'Cup type casing packer cementing shoe'19945,279,370'Mechanical cementing packer collar'19945,277,253'Hydraulic set casing packer'19945,261,492'Well casing apparatus and method'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–1996Patents assigned to HALLIBURTON CO (6)· patent assignee history
1993–2012Based in Duncan, OK, US· patent location history
2003–2010Patents assigned to SHELL OIL CO (24)· patent assignee history
2011–2012Patents assigned to ENVENTURE GLOBAL TECHNOLOGY (2)· patent assignee history
2012Patents assigned to BRISCO DAVID PAUL (1)· patent assignee history
2012Patents assigned to COOK ROBERT LANCE (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SHELL OIL CO | 24 | 2003–2010 |
| HALLIBURTON CO | 6 | 1993–1996 |
| ENVENTURE GLOBAL TECHNOLOGY | 2 | 2011–2012 |
| BRISCO DAVID PAUL | 1 | 2012 |
| COOK ROBERT LANCE | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Duncan, OK, US | 33 | 1993–2012 |