Inventor

Werner Ostertag

Inventor

Gruenstadt, DE

Overview

39→

Patents

1976–2003

Patent span

Chemistry

Primary field (CPC C)

Patents· 39 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 compounds18%

C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties18%

C09DCoating compositions, e.g. paints, varnishes or lacquers8%

Y10TTechnical subjects covered by former us classification7%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients6%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%

A61KPreparations for medical, dental or toiletry purposes4%

A61QSpecific use of cosmetics or similar toiletry preparations4%

G11BInformation storage based on relative movement between record carrier and transducer4%

C01GCompounds containing metals not covered by subclasses c01d or c01f3%

PatentTitleYear

6,645,286'Iron effect pigments'2003 6,589,331'Soft iron pigments'2003 6,428,846'Corrosion-stable aluminum pigments and process for the production thereof'2002 6,287,695'Corrosion-stable aluminum pigments and process for the production thereof'2001 5,798,147'Process for coating and printing substrates'1998 5,733,658'Luster pigments based on reduced titania-coated silicate-based platelets'1998 5,710,197'Crosslinked polymer particles containing a fluorescent dye'1998 5,693,135'Interference pigments containing reduced titanium oxide layers for preparing forgeryproof documents and packaging'1997 5,624,487'Preparation of bluish luster pigments'1997 5,573,584'Interference pigments for preparing forgeryproof documents'1996 5,501,731'Carbon-containing luster pigments'1996 5,470,502'Fluorescent pigments'1995 5,277,711'Mixtures useful as luster pigments'1994 5,244,649'Production of hematite pigments in the form of platelets'1993 5,122,291'Thermal insulating material based on pigment containing silica aerogels'1992 5,039,587'Oxide-coated carriers and preparation and use thereof'1991 5,026,429'Metal oxide coated platelet-like organic pigments'1991 4,978,394'Metal oxide coated aluminum pigments'1990 4,948,631'Preparation of particularly bluish pearl luster pigments'1990 4,925,762'Carrier for reprography and production of this carrier'1990 4,867,795'Plateletlike pigments based on iron oxide'1989 4,851,049'Thermostable bismuth vanadate/molybdate pigments'1989 4,840,677'Plateletlike two-phase pigment'1989 4,826,537'Lamellar pigments of the general formula Mn.sub.X -Al.sub.Y Fe.sub.2-(X+Y) O.sub.3'1989 4,803,143'Colored single-component toners and their preparation'1989 4,702,775'Preparation of magnetite pigments: control of particle size'1987 4,629,616'Basic chromium aluminum sulfates and their preparation'1986 4,629,513'Preparation of transparent golden yellow, thermally stable two-phase pigments of the general formula xZnO.ZnFe.sub.2 O.sub.4'1986 4,552,593'Preparation of effect pigments coated with metal oxides'1985 4,530,725'Preparation of thermally stable lead chromate pigments'1985 4,455,174'Yellow pigment containing bismuth vanadate and having the composition BiVO.sub.4.xBi.sub.2 MoO.sub.6.yBi.sub.2 WO.sub.6'1984 4,344,987'Preparation of flaky mica pigments coated with metal oxides, and use of these pigments'1982 4,328,042'Preparation of metallic pigments having a metallic luster'1982 4,237,318'Manufacture of aqueous methanolic solution of sodium formate'1980 4,139,351'Separation of finely divided metal oxides, produced by combustion of metal carbonyls, from a stream of gas'1979 4,018,967'Magnetic recording tape'1977 4,018,968'Coated magnetic recording media'1977 3,959,553'Magnetic discs having metal support and a non-magnetic layer'1976 3,955,037'Magnetic discs having a multi-component binder'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1998Patents assigned to BASF AG (34)· patent assignee history

1976–1977Based in Willstaett, DE· patent location history

1979–1996Based in Gruenstadt, DE· patent location history

1985Patents assigned to BASF FARBEN & FASERN (1)· patent assignee history

1997–2003Based in Grunstadt, DE· patent location history

1997Based in Osthofen, DE· patent location history

2001–2002Patents assigned to ECKART STANDARD BRONZEPULVER (2)· patent assignee history

2002Based in Grnstadt, DE· patent location history

2003Patents assigned to ECKART GMBH & CO KG (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BASF AG	34	1976–1998
ECKART GMBH & CO KG	2	2003
ECKART STANDARD BRONZEPULVER	2	2001–2002
BASF FARBEN & FASERN	1	1985

Locations

Location	Patents	Span
Gruenstadt, DE	26	1979–1996
Grunstadt, DE	7	1997–2003
Willstaett, DE	3	1976–1977
Grnstadt, DE	1	2002
Osthofen, DE	1	1997