Inventor · disambiguated record
Antonio Sergio Cavalheiro
Also filed as: CAVALHEIRO ANTONIO SÉRGIO · CAVALHEIRO Antonio Sergio
4 granted patents·3 pending applications·2 citations·filing 2013–2014
57Inventor score
Files withSLIM DRILLING SERVICOS DE PERFURACAO S A4SLIM DRILLING SERVICES DE PERFURACO S A1SLIM DRILLING SERVIÇOS DE PERFURAÇÃO S A1SLIM DRILLING SSERVICOS DE PERFURACAO S A1
Top patents by PatentIndex Score
7 records- 0155US10415340B2Device with assembly and installation in casing column coupled to a mandrel for disobstructing a drilling wellSLIM DRILLING SERVICOS DE PERFURACAO S A·Filed 2013·Granted Sep 17, 2019·2 cites·4 claims
- 0237US10392886B2Safety 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 specimenSLIM DRILLING SERVICOS DE PERFURACAO S A·Filed 2013·Granted Aug 27, 2019·0 cites·7 claims
- 0334US10358912B2Test tube with an inlet for filling with fluid and expelling air, and with enhanced resistance and sealing for the BOP testing step in drilling systemsSLIM DRILLING SSERVICOS DE PERFURACAO S A·Filed 2014·Granted Jul 23, 2019·0 cites·3 claims
- 0433US10465467B2Assembly and arrangement for a drilling column composed of smooth rods for a system to prevent ingress in the stage of drilling oil/gas wellsSLIM DRILLING SERVICOS DE PERFURACAO S A·Filed 2013·Granted Nov 5, 2019·0 cites·5 claims
- 0533US2017145749A1Adapted drilling equipment platform with movable mechanism for hoisting and lowering transport system, and system for lifting and lowering over the well headSLIM DRILLING SERVICES DE PERFURACO S A·Filed 2014·Application pending·0 cites
- 0633US2017175480A1Fluid injection tubing with a collar for a test string, having a locking system by abutment against the drilling well head ramSLIM DRILLING SERVICOS DE PERFURACAO S A·Filed 2013·Application pending·0 cites
- 0732US2017089151A1Support with limiting collar for casing string, for locking by abutment above the mandrel of the drilling equipmentSLIM DRILLING SERVIÇOS DE PERFURAÇÃO S A·Filed 2013·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →