Inventor
Horst Brunn
Inventor
Krefeld, DE
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C01Pprimary
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds26%
C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties26%
C01GCompounds containing metals not covered by subclasses c01d or c01f20%
C04BLime, magnesia6%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients6%
C09DCoating compositions, e.g. paints, varnishes or lacquers4%
B82YSpecific uses or applications of nanostructures2%
C02FTreatment of water, waste water, sewage, or sludge2%
C05DInorganic fertilisers not covered by subclasses c05b, c05c2%
D21HPulp compositions2%
PatentTitleYear
7,294,192'Heat-stable zinc ferrite colour pigments, process for preparing them and their use'20077,144,455'Process for preparing yellow iron oxide pigments with CaCo3 precipitant'20065,837,051'Process for the thermal treatment of iron oxides in a circulating fluidized bed'19985,665,157'Clean color shade, yellow-tinged red iron oxide pigments, and a process for their manufacture, and their use'19975,269,843'Boron-containing iron oxide pigments and a process for their preparation'19935,059,250'Red iron oxide pigments with improved coloring properties'19915,049,193'Heat stable iron oxide pigments of upsilon-Fe.sub.2 O.sub.3 structure, a process for their production and their use'19914,701,221'Process for the production of black pigments based on iron'19874,698,100'Iron oxide yellow pigments having a low silking effect and a process for production thereof'19874,620,879'Iron oxide yellow pigments having a low silking effect and a process for production thereof'19864,589,906'Inorganic depot fertilizers'19864,492,600'Corrosion-inhibiting paints and lacquers'19854,443,264'Halogen-free zinc ferrite yellow pigments containing alumina and phosphorus oxide and production'19844,358,431'Production of magnetic iron oxides'19824,234,348'Process for the production of iron oxide red pigments'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1998Patents assigned to BAYER AG (13)· patent assignee history
1980–1991Based in Krefeld, DE· patent location history
1987–2007Based in Meerbusch, DE· patent location history
2006Patents assigned to BAYER CHEMICALS AG (1)· patent assignee history
2007Patents assigned to LANXESS DEUTSCHLAND GMBH (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAYER AG | 13 | 1980–1998 |
| BAYER CHEMICALS AG | 1 | 2006 |
| LANXESS DEUTSCHLAND GMBH | 1 | 2007 |
Locations
| Location | Patents | Span |
|---|---|---|
| Krefeld, DE | 8 | 1980–1991 |
| Meerbusch, DE | 7 | 1987–2007 |