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Inventor

Slaheddine Kefi

Inventor
Velizy Villacoublay, FR

Overview

15→
Patents
2005–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 15 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere40%
E21BEarth or rock drilling23%
C04BLime, magnesia20%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
Y02PClimate change mitigation technologies in the production or processing of goods6%
G01NInvestigating or analysing materials by determining their chemical or physical properties3%
PatentTitleYear
11,091,686Compositions and methods for completing subterranean wells20219,896,612'Methods for controlling lost circulation in a subterranean well and materials there for'20189,528,365'Apparatuses and methods for testing wellbore fluids'20169,290,689'Use of encapsulated tracers'20169,206,343'Pumpable geopolymers comprising a setting accelerator'20158,991,497'Well treatment'20158,776,882'Engineered fibers for well treatments'20148,689,869'Method for providing thixotrophy to fluids downhole'20148,535,437'Pumpable geopolymers comprising a fluid-loss agent'20138,393,395'Use of encapsulated chemical during fracturing'20138,371,381'Engineered fibers for well treatments'20137,770,644'Self diverting matrix acid'20107,575,054'Self diverting matrix acid'20097,237,608'Self diverting matrix acid'20076,874,578'Cementing compositions and application of such compositions to cementing oil wells or the like'2005

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2005–2021Patents assigned to SCHLUMBERGER TECHNOLOGY CORP (15)· patent assignee history
2005Based in Sugar Land, TX, US· patent location history
2007–2010Based in Cottenham, GB· patent location history
2013–2018Patents assigned to KEFI SLAHEDDINE (8)· patent assignee history
2013–2018Patents assigned to SHINDGIKAR NIKHIL (4)· patent assignee history
2013–2015Patents assigned to ACHTAL HAFIDA (2)· patent assignee history
2013–2015Patents assigned to BOUBEGUIRA YAMINA (2)· patent assignee history
2013–2018Based in Velizy Villacoublay, FR· patent location history
2021Based in Clamart, FR· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SCHLUMBERGER TECHNOLOGY CORP152005–2021
KEFI SLAHEDDINEself82013–2018
SHINDGIKAR NIKHIL42013–2018
ACHTAL HAFIDA22013–2015
BOUBEGUIRA YAMINA22013–2015
Locations
LocationPatentsSpan
Velizy Villacoublay, FR102013–2018
Cottenham, GB32007–2010
Clamart, FR12021
Sugar Land, Texas, US12005