Pereira Dos Santos; Mario Cesar

Patent Applications and Registrations

Patent applications and USPTO patent grants for Pereira Dos Santos; Mario Cesar.The latest application filed is for "device with assembly and installation in casing column coupled to a mandrel for disobstructing a drilling well".

Company Profile

3.4.7

Pereira Dos Santos; Mario Cesar - Belo Horizonte--MG BR
Pereira Dos Santos; Mario Cesar - Belo Horizonte BR

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Assembly and arrangement for a drilling column composed of smooth rods for a system to prevent ingress in the stage of drilling oil/gas wells Grant 10,465,467 - Cavalheiro , et al. No	2019-11-05
Device with assembly and installation in casing column coupled to a mandrel for disobstructing a drilling well Grant 10,415,340 - Cavalheiro , et al. Sept	2019-09-17
Safety mechanism for installation in soil-sampling tooling, with a system for blocking the escape of gas/oil in the stage of recovering the internal tube containing the specimen Grant 10,392,886 - Cavalheiro , et al. A	2019-08-27
Test tube with an inlet for filling with fluid and expelling air, and with enhanced resistance and sealing for the BOP testing step in drilling systems Grant 10,358,912 - Cavalheiro , et al.	2019-07-23
Device With Assembly And Installation In Casing Column Coupled To A Mandrel For Disobstructing A Drilling Well App 20170218718 - CAVALHEIRO; Antonio Sergio ; et al.	2017-08-03
Fluid Injection Tubing With A Collar For A Test String, Having A Locking System By Abutment Against The Drilling Well Head Ram App 20170175480 - Cavalheiro; Antonio Sergio ; et al.	2017-06-22
Test Tube With An Inlet For Filling With Fluid And Expelling Air, And With Enhanced Resistance And Sealing For The Bop Testing Step In Drilling Systems App 20170152740 - CAVALHEIRO; Antonio Sergio ; et al.	2017-06-01
Adapted Drilling Equipment Platform With Movable Mechanism For Hoisting And Lowering Transport System, And System For Lifting And Lowering Over The Well Head App 20170145749 - CAVALHEIRO; Antonio Sergio ; et al.	2017-05-25
Support With Limiting Collar For Casing String, For Locking By Abutment Above The Mandrel Of The Drilling Equipment App 20170089151 - CAVALHEIRO; Antonio Sergio ; et al.	2017-03-30
Safety Mechanism For Installation In Soil-sampling Tooling, With A System For Blocking The Escape Of Gas/oil In The Stage Of Recovering The Internal Tube Containing The Specimen App 20160312558 - CAVALHEIRO; Antonio Sergio ; et al.	2016-10-27
Assembly And Arrangement For A Drilling Column Composed Of Smooth Rods For A System To Prevent Ingress In The Stage Of Drilling Oil/gas Wells App 20160298411 - CAVALHEIRO; Antonio Sergio ; et al.	2016-10-13

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