Inventor

Erwin Dietz

Inventor

Kelkheim, DE

Overview

1979–2006

Patent span

Chemistry

Primary field (CPC C)

Patents· 68 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C09Bprimary

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments39%

C09DCoating compositions, e.g. paints, varnishes or lacquers12%

C09KMaterials for miscellaneous applications, not provided for elsewhere6%

C07DHeterocyclic compounds5%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds4%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry3%

C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties3%

F28FDetails of heat-exchange and heat-transfer apparatus, of general application3%

Y10TTechnical subjects covered by former us classification3%

C07CAcyclic or carbocyclic compounds2%

PatentTitleYear

7,102,014'Pigment dispersants based on diketopyrrolopyrrole compounds and pigment preparations'2006 7,056,378'Method for producing vattable organic pigments'2006 7,045,638'Pigment dispersants based on diketopyrrolopyrrole compounds and pigment preparations'2006 7,045,637'Pigment dispersants based on diketopyrrolopyrrole compounds and pigment preparations'2006 6,918,958'Acid pigment dispersants and pigment preparations'2005 6,835,242'Conditioning of organic pigments'2004 6,723,138'Preparation of diketopyrrolopyrrole pigments'2004 6,646,126'Process for preparing perylene-3,4,9,10-tetracarboxylic diimide in transparent pigment form'2003 6,616,859'Preparation of alcoholic solutions of alkali metal alkoxides'2003 6,582,508'Process for fine division of organic pigments'2003 6,566,519'Preparation of diketopyrrolopyrrole pigments'2003 6,562,121'Conditioning of organic pigments'2003 6,548,647'Process for preparing azo colorants'2003 6,537,364'Process for fine division of organic pigments by precipitation'2003 6,521,756'Process for preparing perylene-3,4,9,10-tetracarboxylic diimide in transparent pigment form'2003 6,413,309'Pigment preparations comprising two or more perylene compounds'2002 6,409,816'Pigment preparations based on diketopyrrolopyrrole pigments with basic perylene dispersants'2002 6,221,150'Perylene compounds and pigment preparations'2001 6,017,984'Colored cholesteric liquid-crystal polymers having optically variable properties'2000 5,837,160'Chiral CLCPs containing colored monomers'1998 5,834,064'Effect coatings whose perceived color depends on the viewing angle'1998 5,834,072'Powder coatings whose perceived color depends on the viewing angle'1998 5,747,175'LCP blends'1998 5,698,705'Isoindoline pigments'1997 5,662,739'Use of fatty acid taurides for the dispersion of polycyclic pigments'1997 5,591,258'Preparation of linear, unsubstituted quinacridone pigments of the .beta.-phase'1997 5,510,494'Process for the preparation of C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy and unsubstituted 2-(cyanomethyl)benzimidazole'1996 5,466,807'Perylene compounds containing sulfonic acid groups process for preparing them and their use'1995 5,415,669'Dye mixtures for the dyeing of textile hydrophobic fibre materials'1995 5,368,641'Modified 2,9-dimethylquinacridone pigments, process for their manufacture and a method for pigmenting or lacquer systems with these pigments'1994 5,342,723'Biscationic acid amide and acid imide derivatives as charge controllers'1994 5,329,046'Biscationic acid amide and imide derivatives and processes for their preparation'1994 5,318,627'Process for the preparation of pigment preparations based on C.I. pigment violet 23'1994 5,296,034'Process for the production of copper phthalocyanine pigment preparations of the .alpha. phase'1994 5,296,033'Process for the production of pigment preparations based on phythalocyanine pigments'1994 5,275,653'Pigment preparations based on dioxazine compounds'1994 5,264,034'Pigment preparations based on perylene compounds'1993 5,264,032'Pigment preparations'1993 5,254,796'Oxidation process'1993 5,248,774'Inner salts based on ammonium and sulfonate groups of perylene-3,4,9,10-tetracarboxylic and derivatives thereof'1993 5,240,499'Surfactant triazine compounds and their use'1993 5,207,829'Pigment preparations'1993 5,137,576'Quinacridones having selectively adjusted triboelectric effects'1992 5,123,966'Mixed crystal pigments based on halogenated perylenetetracarboximides'1992 5,112,404'Pigment formulations, processes for their preparation and their use'1992 5,110,931'Process for the preparation of N,N\'-dimethylperylene-3,4,9,10-tetracarboxylic diimide in high-hiding pigment form'1992 5,074,919'Preparation of vat dyes and pigments of the perinone series'1991 5,071,482'Pigment preparations'1991 5,071,483'Process for the preparation of pigment preparations of the anthanthrone series'1991 5,070,159'Addition compounds, a process for the preparation, and their use, based on epoxy novolac-fatty amine adducts'1991 5,055,580'Substituted polycylic derivatives of the 9-oxo-1,9a,10-triaza-9-hydroanthracene and method for coloring of native or synthetic materials'1991 5,035,747'Mixed crystal pigments of the anthanthrone series, and preparation and use thereof'1991 4,986,852'Pigments and use thereof'1991 4,986,851'Pigment dispersions, processes for their preparation and their use'1991 4,960,935'Bisphenol derivatives, process for their manufacture, and their use as surfactants'1990 4,939,193'Use of the alpha-modification of cis-naphthoylenebis(benzimidazole) for pigmenting polyolefins'1990 4,937,345'Process for the preparation of 2-(arylamino)-3-carboxy-9(10H)-acridones'1990 4,881,980'Pigments of the quinacridonequinone series, processes for their preparation and their use'1989 4,828,622'Process for preparing highly concentrated aqueous press cakes of solids'1989 4,812,143'Liquid formulations of disperse dyestuffs containing inorganic oxides or silicates for dyeing textile materials'1989 4,785,082'Process for preparing a highly concentrated aqueous press cakes of an azo disperse dye from dilute aqueous suspension thereof wherein surfactant is added before the dye is isolated'1988 4,631,330'Addition compounds and process for their preparation'1986 4,451,656'Imidazoline addition compounds'1984 4,443,263'Solids dispersions which can be easily distributed in hydrophobic and hydrophilic media and are stable to flocculation, and their use'1984 4,369,270'Pigment dispersions and use thereof'1983 4,219,365'Pigment dispersions and their use for the pigmenting of hydrophilic and hydrophobic media'1980 4,217,265'Pigment preparations'1980 4,156,616'Pigment dispersion for use in hydrophilic and hydrophobic media'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1998Patents assigned to HOECHST AG (45)· patent assignee history

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

1989Patents assigned to CASSELLA FARBWERKE MAINKUR AG (1)· patent assignee history

1998–2006Patents assigned to CLARIANT GMBH (15)· patent assignee history

1998–2000Based in Konigstein, DE· patent location history

2001–2006Based in Koenigstein, DE· patent location history

2003–2004Patents assigned to CLARIANT INT LTD (3)· patent assignee history

2003–2004Patents assigned to CLARIANT FINANCE BVI LTD (2)· patent assignee history

2003–2004Based in Knigstein, DE· patent location history

2006Based in KÃ¶nigstein, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HOECHST AG	45	1979–1998
CLARIANT GMBH	15	1998–2006
CLARIANT INT LTD	3	2003–2004
CLARIANT FINANCE BVI LTD	2	2003–2004
CASSELLA FARBWERKE MAINKUR AG	1	1989

Locations

Location	Patents	Span
Kelkheim, DE	41	1979–1996
Knigstein, DE	10	2003–2004
Koenigstein, DE	5	2001–2006
Konigstein, DE	4	1998–2000
KÃ¶nigstein, DE	3	2006