Inventor
Joseph A. Burkhardt
Inventor
New Orleans, LA, US
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling44%
Y10TTechnical subjects covered by former us classification17%
B63BShips or other waterborne vessels11%
F16KValves11%
F16LPipes11%
F16JPistons6%
PatentTitleYear
4,858,694'Heave compensated stabbing and landing tool'19894,429,620'Hydraulically operated actuator'1984RE031265'Method and apparatus for making subsea pipe connections'19834,178,992'Metal seal tubing plug'19794,067,385'Apparatus and method for connecting a tubing string to downhole well equipment'19784,039,025'Apparatus for anchoring an offshore structure'19774,019,334'Method and apparatus for making subsea pipe connections'19773,989,223'Rotary motion failsafe gate valve actuator'19763,987,638'Subsea structure and method for installing the structure and recovering the structure from the sea floor'19763,955,793'Valve stem static seal system'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1989Patents assigned to EXXON PRODUCTION RESEARCH CO (9)· patent assignee history
1976–1989Based in New Orleans, LA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EXXON PRODUCTION RESEARCH CO | 9 | 1976–1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| New Orleans, LA, US | 10 | 1976–1989 |