Inventor
Timothy Neff
Inventor
Calgary, CA
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling40%
H01RElectrically-conductive connections40%
H02KDynamo-electric machines20%
PatentTitleYear
8,624,464'Brush and brush housing arrangement to mitigate hydrodynamic brush lift in fluid-immersed electric motors'20147,839,719'Fluid erosion protection washer for rotating shaft in MWD tool'20107,821,178'Brush and brush housing arrangement to mitigate hydrodynamic brush lift in fluid-immersed electric motors'20107,532,540'Fluid erosion protection washer for rotating shaft in MWD tool'2009Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2009Patents assigned to EXTREME ENGINEERING LTD (1)· patent assignee history
2009–2014Based in Calgary, CA· patent location history
2010–2014Patents assigned to SCHLUMBERGER TECHNOLOGY CORP (3)· patent assignee history
2014Patents assigned to CAMWELL PAUL L (1)· patent assignee history
2014Patents assigned to DOPF ANTHONY R (1)· patent assignee history
2014Patents assigned to LOGAN DEREK W (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SCHLUMBERGER TECHNOLOGY CORP | 3 | 2010–2014 |
| CAMWELL PAUL L | 1 | 2014 |
| DOPF ANTHONY R | 1 | 2014 |
| EXTREME ENGINEERING LTD | 1 | 2009 |
| LOGAN DEREK W | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Calgary, CA | 4 | 2009–2014 |