Inventor
David V. Chenoweth
Inventor
Houston, TX, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling44%
F16LPipes33%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
G01NInvestigating or analysing materials by determining their chemical or physical properties6%
Y10TTechnical subjects covered by former us classification6%
PatentTitleYear
4,673,652'Method of testing and reconditioning insulating tubular conduits'19874,624,485'Insulating tubular conduit apparatus'19864,582,349'Plastically deformed seals in downhole tools'19864,566,495'Concentric walled conduit for a tubular conduit string'19864,509,599'Gas well liquid removal system and process'19854,480,371'Method of making insulated tubular conduit'19844,444,420'Insulating tubular conduit apparatus'19844,396,211'Insulating tubular conduit apparatus and method'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983–1984Patents assigned to BAKER INT CORP (2)· patent assignee history
1983–1986Based in Houston, TX, US· patent location history
1984–1987Patents assigned to BAKER OIL TOOLS INC (6)· patent assignee history
1985–1987Based in Lahaina, HI, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAKER OIL TOOLS INC | 6 | 1984–1987 |
| BAKER INT CORP | 2 | 1983–1984 |
Locations
| Location | Patents | Span |
|---|---|---|
| Houston, Texas, US | 6 | 1983–1986 |
| Lahaina, HI, US | 2 | 1985–1987 |