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Official data from INPI

MÉTODO PARA TRATAMENTO DE LIGNINA

ConcedidaInvention PatentPCT · SE2019050824 Official document available

Application data

Number

112021001268

Type

Invention Patent

Filing

09/03/2019

Publication

04/20/2021

PCT

SE2019050824

Patent grant document available

We have the complete official document for this filing, as published by INPI.

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Progress at the INPI

  1. Filing09/03/19
  2. Publication04/20/21
  3. Examination
  4. Allowance11/05/24
  5. Grant12/24/24
  6. In force09/03/39

The patent was granted on 12/24/2024 and is in force until 09/03/2039. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:09/03/2039

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Latest action published by the INPI: 12/24/2024. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

VALMET AB

SE

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Inventors

A. L. (pessoa física)

SE

A. U. (pessoa física)

SE

H. W. (pessoa física)

SE

L. Å. (pessoa física)

SE

Technical data

Priority claims

SE

1851063-6 · 09/07/2018

Abstract

A presente invenção se refere a um método para produzir lignina com quantidade reduzida de guaiacol e etilguaiacol a fim de reduzir o teor de substâncias odoríferas submetendo a lignina a um processo de aquecimento para remover o guaiacol.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

Prazo de Validade: 20 (vinte) anos contados a partir de 03/09/2019, observadas as condições legais

12/24/2024

RPI 2816

Deferimento

#9.1

11/05/2024

RPI 2809

Exigência - art. 36 da LPI

#6.1

07/09/2024

RPI 2792

Conhecimento de parecer técnico

#7.1

12/12/2023

RPI 2762

Parecer de pré-exame

#6.23

09/20/2022

RPI 2698

Notificação de entrada na fase nacional - PCT

#1.3

04/20/2021

RPI 2624

Alteração de dados cadastrais

#1.1

02/02/2021

RPI 2613

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