Inventor

John J. Sgambelluri

Inventor
Meriden, CT, US

Overview

4→
Patents
2008–2020
Patent span
Physics
Primary field (CPC G)

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
AssigneePatentsSpan
WEATHERFORD LAMB22008–2013
WEATHERFORD TECH HOLDINGS LLC22016–2020
DUNPHY JAMES R12013
GRUNBECK JOHN12013
ROBBINS JOSEPH F12013
Locations
LocationPatentsSpan
Meriden, CT, US42008–2020