Inventor
Rita Koester
Inventor
Duesseldorf, DE
Overview
Patents· 25 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B03Dprimary
B03DFlotation28%
C11DDetergent compositions20%
F26BDrying solid materials or objects by removing liquid therefrom10%
B01DSeparation5%
C07CAcyclic or carbocyclic compounds5%
D21CProduction of cellulose by removing non-cellulose substances from cellulose-containing materials5%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium3%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds3%
PatentTitleYear
7,871,971'Machine dishwashing rinse agents and methods of using the same'20117,332,466'Lightly-foaming tenside mixtures with hydroxy mixed ethers'20086,732,748'Clear rinsing agents'20046,683,035'Gel compositions containing alkoxylated carboxylic acid esters, their use in cleaning toilets and toilet cleaning products containing the same'20046,660,706'General purpose cleaners'20036,602,838'Hand dishwashing liquid comprising an alkoxylated carboxylic acid ester'20036,521,578'Cleaning agents for hard surfaces'20036,384,009'Use of alkoxylated carboxylic acid esters for reducing viscosity of aqueous surfactant systems'20026,057,375'Use of alkoxylation products of epoxidized fats as antifoaming agents'20005,914,006'Process for controlling the deposit of adhesive impurities from paper material suspensions'19995,545,332'Process for dewatering fine-particle solids suspensions'19965,540,336'Method of producing iron ore concentrates by froth flotation'19965,492,631'Process for dewatering fine-particle solids suspensions using dialkyl carbonates'19965,441,156'Process and recovering minerals from non-sulfidic ores by flotation'19955,372,727'Auxiliaries for the filtration and/or dewatering of mineral and coal suspensions'19945,215,669'Use of mixed hydroxyethers as auxiliaries for the dehydration of solids'19935,108,585'Flotation of non-sulfidic ore with a glycosidic collector'19924,995,998'Surfactant mixtures as collectors for the flotation of non-sulfidic ores'19914,956,124'Bicyclic decanedioic acids, a process for their production, and their use as flotation aids'19904,925,559'Use of derivatives of tricyclo-(5.2.1.02,6)-dec-3-ene as frothers in the flotation of coal and ores'19904,814,070'Alkyl sulfosuccinates based on alkoxylated fatty alcohols as collectors for non-sulfidic ores'19894,790,932'N-alkyl and N-alkenyl aspartic acids as co-collectors for the flotation of non-sulfidic ores'19884,790,931'Surfactant mixtures as collectors for the flotation of non-sulfidic ores'19884,789,466'Method of separating non-sulfidic minerals by flotation'19884,702,823'Phosphinic acid adducts with maleic acid semiesters, a process for their production and their use'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–2000Patents assigned to HENKEL KGAA (16)· patent assignee history
1987–1992Based in Neuss, DE· patent location history
1988–2011Based in Duesseldorf, DE· patent location history
1996Patents assigned to HENKEL KOMMNADITGESELLSCHAFT A (1)· patent assignee history
2002–2008Patents assigned to COGNIS DEUTSCHLAND GMBH (7)· patent assignee history
2011Patents assigned to COGNIS IP MAN GMBH (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HENKEL KGAA | 16 | 1987–2000 |
| COGNIS DEUTSCHLAND GMBH | 7 | 2002–2008 |
| COGNIS IP MAN GMBH | 1 | 2011 |
| HENKEL KOMMNADITGESELLSCHAFT A | 1 | 1996 |
Locations
| Location | Patents | Span |
|---|---|---|
| Duesseldorf, DE | 21 | 1988–2011 |
| Neuss, DE | 4 | 1987–1992 |