Inventor
John J. Sgambelluri
Inventor
Meriden, CT, US
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Lprimary
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure36%
G02BOptical elements, systems or apparatus36%
E21BEarth or rock drilling27%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2008–2013Patents assigned to WEATHERFORD LAMB (2)· patent assignee history
2008–2020Based in Meriden, CT, US· patent location history
2013Patents assigned to DUNPHY JAMES R (1)· patent assignee history
2013Patents assigned to GRUNBECK JOHN (1)· patent assignee history
2013Patents assigned to ROBBINS JOSEPH F (1)· patent assignee history
2016–2020Patents assigned to WEATHERFORD TECH HOLDINGS LLC (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WEATHERFORD LAMB | 2 | 2008–2013 |
| WEATHERFORD TECH HOLDINGS LLC | 2 | 2016–2020 |
| DUNPHY JAMES R | 1 | 2013 |
| GRUNBECK JOHN | 1 | 2013 |
| ROBBINS JOSEPH F | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Meriden, CT, US | 4 | 2008–2020 |