Oi SA - Company Profile
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View up-to-date information on Oi SA patents, including inventor and filing insights.
Patent Trends
| Publication Identifier | Document Type | Title | Classification-CPC | Publication Date |
|---|---|---|---|---|
| BRPI0504288B8 | Grant | Sistema de envio de eventos e terminal receptor de eventos | November 08, 2022 | |
| BRPI0902036B1 | Grant | sistema e método de autenticação para interconexão de redes sem fio heterogêneas | H04W36/18 | May 04, 2021 |
| BR102019001041A2 | Application | telefone com dispositivo de envio de alarmes, de monitoramento de disponibilidade e de atualização de dados via rede celular para telefone de uso público | H04M3/08 | August 04, 2020 |
| BRPI0504288B1 | Grant | sistema de envio de eventos e terminal receptor de eventos | June 05, 2018 | |
| BRPI0503637B1 | Grant | sistema de telefonia pré-paga e processo para a realização de uma chamada usando créditos associados a uma conta de telefonia pré-paga | May 08, 2018 |
Top Inventors by Filings (Count by publication)
| Name | Count |
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