Inventor
Horst-Werner Wollenweber
Inventor
Duesseldorf, DE
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation19%
A01NPreservation of bodies of humans or animals or plants or parts thereof13%
C09DCoating compositions, e.g. paints, varnishes or lacquers13%
D21HPulp compositions9%
C07CAcyclic or carbocyclic compounds6%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds6%
C13BProduction of sucrose6%
D21CProduction of cellulose by removing non-cellulose substances from cellulose-containing materials6%
C04BLime, magnesia3%
C09KMaterials for miscellaneous applications, not provided for elsewhere3%
PatentTitleYear
8,426,478'Defoamer formulation'20136,764,979'Aqueous herbicidal agent'20046,759,371'Bromoxynil component-containing herbicidal preparations with enhanced penetration and methods of using same'20046,403,529'Aqueous, agrochemical agents containing active ingredients'20026,255,253'Microemulsions'20016,057,375'Use of alkoxylation products of epoxidized fats as antifoaming agents'20005,807,502'Aqueous fatty alcohol dispersions'19985,725,815'Foam control agents for the food, paint and paper industries'19985,710,207'Block polymers containing ester groups as defoamers for aqueous systems'19985,679,286'Aqueous dispersions of antifoam agents'1997Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1997–2000Patents assigned to HENKEL KGAA (5)· patent assignee history
1997–2004Based in Duesseldorf, DE· patent location history
1998Based in Dusseldorf, DE· patent location history
2001–2004Patents assigned to COGNIS DEUTSCHLAND GMBH (4)· patent assignee history
2004Based in Hamburg, DE· patent location history
2013Patents assigned to DABROWSKI LARA (1)· patent assignee history
2013Patents assigned to EVONIK DEGUSSA GMBH (1)· patent assignee history
2013Patents assigned to MENZEL FRANK (1)· patent assignee history
2013Based in Essen, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HENKEL KGAA | 5 | 1997–2000 |
| COGNIS DEUTSCHLAND GMBH | 4 | 2001–2004 |
| DABROWSKI LARA | 1 | 2013 |
| EVONIK DEGUSSA GMBH | 1 | 2013 |
| MENZEL FRANK | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Duesseldorf, DE | 7 | 1997–2004 |
| Essen, DE | 1 | 2013 |
| Hamburg, DE | 1 | 2004 |
| Dusseldorf, DE | 1 | 1998 |