Inventor
David M. Schnell
Inventor
The Woodlands, TX, US
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling100%
PatentTitleYear
6,397,958'Reaming apparatus and method with ability to drill out cement and float equipment in casing'20026,116,356'Reaming apparatus and method with enhanced stability and transition from pilot hole to enlarged bore diameter'20006,009,963'Superabrasive cutting element with enhanced stiffness, thermal conductivity and cutting efficiency'20005,765,653'Reaming apparatus and method with enhanced stability and transition from pilot hole to enlarged bore diameter'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–2002Patents assigned to BAKER HUGHES INC (4)· patent assignee history
1998–2002Based in The Woodlands, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAKER HUGHES INC | 4 | 1998–2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| The Woodlands, Texas, US | 4 | 1998–2002 |