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Inventor

Alain Rollat

Inventor
Paris, FR

Overview

9→
Patents
1983–2015
Patent span
Chemistry
Primary field (CPC C)

Patents· 9 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C01Fprimary
C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare-earth metals18%
C22BProduction and refining of metals18%
Y02PClimate change mitigation technologies in the production or processing of goods15%
B01DSeparation5%
C07DHeterocyclic compounds5%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds5%
C09KMaterials for miscellaneous applications, not provided for elsewhere5%
C25BElectrolytic or electrophoretic processes for the production of compounds or non-metals5%
H01JElectric discharge tubes or discharge lamps5%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management5%
PatentTitleYear
9,102,998'Method of recovering rare earths from a solid mixture containing a halophosphate and a rare earth compound and solid mixtures suitable for this method'20158,501,124'Method for recovering rare-earth elements from a solid mixture containing a halophosphate and a compound of one or more rare-earth elements'20134,938,852'Recovery of europium (II) values by electrolysis'19904,834,952'Purification of barium values'19894,726,938'Liquid/liquid extraction/purification of impure solutions of rare earth values'19884,676,957'Electrolytic separation of cerium/rare earth values'19874,647,438'Separation of rare earth values by liquid/liquid extraction'19874,499,057'Extraction of metals from aqueous solutions with cyclic organic carbonates'19854,423,235'Carbonates carrying cyclic carbonate groups'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1985Patents assigned to POUDRES & EXPLOSIFS STE NALE (2)· patent assignee history
1983–1985Based in Strasbourg, FR· patent location history
1987–1988Patents assigned to RHONE POULENC SPEC CHIM (3)· patent assignee history
1987–2015Based in Paris, FR· patent location history
1989–1990Patents assigned to RHONE POULENC CHIMIE (2)· patent assignee history
1989–1990Based in La Rochelle, FR· patent location history
2013–2015Patents assigned to BRACONNIER JEAN-JACQUES (2)· patent assignee history
2013–2015Patents assigned to RHODIA OPERATIONS (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RHONE POULENC SPEC CHIM31987–1988
BRACONNIER JEAN-JACQUES22013–2015
POUDRES & EXPLOSIFS STE NALE21983–1985
RHODIA OPERATIONS22013–2015
RHONE POULENC CHIMIE21989–1990
Locations
LocationPatentsSpan
Paris, FR51987–2015
La Rochelle, FR21989–1990
Strasbourg, FR21983–1985