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Inventor

Yvette Pescher

Inventor
Bagneux, FR

Overview

9→
Patents
1993–2010
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.

C02Fprimary
C02FTreatment of water, waste water, sewage, or sludge37%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests16%
A01NPreservation of bodies of humans or animals or plants or parts thereof11%
B01DSeparation5%
C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare-earth metals5%
C01GCompounds containing metals not covered by subclasses c01d or c01f5%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds5%
C22BProduction and refining of metals5%
Y02PClimate change mitigation technologies in the production or processing of goods5%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management5%
PatentTitleYear
7,780,859'Uncoupling agents'20107,638,055'Sludge quality'20097,169,309'Polysaccharides with oxime or amine functions which are used for water treatment and sludge conditioning'20076,855,268'Composition useful for conditioning sludge derived from the treatment of an aqueous medium and uses thereof'20055,914,040'Process for the purification of a medium containing organic waste'19995,746,990'Process for the preparation of rare-earth sulphides from halides'19985,597,510'Coagulants containing basic aluminum polychloride or polychlorosulfatean iron compound, and an alkali or alkyline earth metall halide'19975,587,086'Purification of aqueous media using aluminum polychloride/iron compound/salt-based coagulant compositions'19965,204,074'Recovery of gallium values from basic aqueous solutions thereof'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–1999Patents assigned to RHONE POULENC CHIMIE (3)· patent assignee history
1993–2005Based in Bagneux, FR· patent location history
1996–1997Patents assigned to KEMRHONE FRANCE (2)· patent assignee history
2005–2007Patents assigned to RHODIA CHIMIE SA (2)· patent assignee history
2007–2010Based in Paris, FR· patent location history
2009–2010Patents assigned to RHODIA OPERATIONS (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RHONE POULENC CHIMIE31993–1999
KEMRHONE FRANCE21996–1997
RHODIA CHIMIE SA22005–2007
RHODIA OPERATIONS22009–2010
Locations
LocationPatentsSpan
Bagneux, FR61993–2005
Paris, FR32007–2010