Inventor
Kenneth E. Rozek
Inventor
Houston, TX, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling56%
F42BExplosive charges, e.g. for blasting, fireworks, ammunition22%
F42DBlasting22%
PatentTitleYear
7,730,968'Apparatus for wellbore communication'20107,520,333'Hydraulic sleeve valve with position indication, alignment, and bypass'20097,413,018'Apparatus for wellbore communication'20086,752,083'Detonators for use with explosive devices'20045,505,134'Perforating gun having a plurality of charges including a corresponding plurality of exploding foil or exploding bridgewire initiator apparatus responsive to a pulse of current for simultaneously detonating the plurality of charges'19965,088,413'Method and apparatus for safe transport handling arming and firing of perforating guns using a bubble activated detonator'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–2004Patents assigned to SCHLUMBERGER TECHNOLOGY CORP (2)· patent assignee history
1992–2010Based in Houston, TX, US· patent location history
1996Patents assigned to SCHLUMBERGER TECHNICAL CORP (1)· patent assignee history
2008–2010Patents assigned to WEATHERFORD LAMB (2)· patent assignee history
2009Patents assigned to BJ SERVICES CO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SCHLUMBERGER TECHNOLOGY CORP | 2 | 1992–2004 |
| WEATHERFORD LAMB | 2 | 2008–2010 |
| BJ SERVICES CO | 1 | 2009 |
| SCHLUMBERGER TECHNICAL CORP | 1 | 1996 |
Locations
| Location | Patents | Span |
|---|---|---|
| Houston, Texas, US | 6 | 1992–2010 |