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Patents Grants
last 30 patents
Information
Patent Grant
Method for etching a phosphate source using acid
Patent number
11,407,640
Issue date
Aug 9, 2022
Prayon Technologies
Alexandre Wavreille
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for producing calcium sulfate
Patent number
10,662,072
Issue date
May 26, 2020
Prayon Technologies
Thomas Henry
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method and device for producing polyphosphoric acid
Patent number
9,828,471
Issue date
Nov 28, 2017
Prayon Technologies
Alain Germeau
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for producing phosphoric acid
Patent number
9,255,006
Issue date
Feb 9, 2016
Prayon Technologies
Antoine Hoxha
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method and device for producing polyphosphoric acid
Patent number
8,845,990
Issue date
Sep 30, 2014
Prayon Technologies
Alain Germeau
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Filtration cell and filtration device using such a cell
Patent number
8,206,587
Issue date
Jun 26, 2012
Prayon Technologies
Serge Kurowski
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR ETCHING A PHOSPHATE SOURCE USING ACID
Publication number
20200165133
Publication date
May 28, 2020
PRAYON TECHNOLOGIES
Alexandre Wavreille
C01 - INORGANIC CHEMISTRY
Information
Patent Application
METHOD FOR PRODUCING CALCIUM MONOHYDROGEN PHOSPHATE
Publication number
20190330063
Publication date
Oct 31, 2019
PRAYON TECHNOLOGIES
Tibaut THEYS
C05 - FERTILISERS MANUFACTURE THEREOF
Information
Patent Application
METHOD FOR THE PREPARATION OF CALCIUM MONOHYDROGEN PHOSPHATE
Publication number
20190322530
Publication date
Oct 24, 2019
PRAYON TECHNOLOGIES
Tibaut THEYS
C01 - INORGANIC CHEMISTRY
Information
Patent Application
METHOD FOR PRODUCING CALCIUM SULFATE
Publication number
20190322540
Publication date
Oct 24, 2019
PRAYON TECHNOLOGIES
Thomas HENRY
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Method and Device for Producing Polyphosphoric Acid
Publication number
20140377138
Publication date
Dec 25, 2014
PRAYON TECHNOLOGIES
Alain Germeau
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
DIHYDRATE-HEMIHYDRATE PROCESS FOR PRODUCING PHOSPHORIC ACID
Publication number
20140120020
Publication date
May 1, 2014
PRAYON TECHNOLOGIES
Antoine Hoxha
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Continuous filtration device with pivoting cells
Publication number
20040089599
Publication date
May 13, 2004
PRAYON TECHNOLOGIES
Serge Kurowski
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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