Inventor

Klaus Walz

Inventor

Leverkusen, DE

Overview

26→

Patents

1976–2005

Patent span

Chemistry

Primary field (CPC C)

Patents· 26 as inventor

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

D06Pprimary

D06PDyeing or printing textiles15%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments11%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium8%

D06MTreatment, not provided for elsewhere in class d06, of fibres, threads, yarns, fabrics, feathers or fibrous goods made from such materials8%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds7%

C09KMaterials for miscellaneous applications, not provided for elsewhere7%

D06LDry-cleaning, washing or bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods7%

C09DCoating compositions, e.g. paints, varnishes or lacquers6%

C14CChemical treatment of hides, skins or leather, e.g. tanning, impregnating, finishing3%

PatentTitleYear

6,846,336'Acid-resistant solutions containing aromatic formaldehyde condensation products'2005 6,171,608'Insecticide formulations'2001 6,099,594'Simultaneous finish-stripping and dyeing of synthetic fibers'2000 6,056,787'Process for the pretreatment of fibers'2000 5,959,001'Pigment preparations'1999 5,936,019'Polyurethane-based thickener compositions and their use for thickening aqueous compositions'1999 5,902,357'Composition for dyeing or printing textile materials'1999 5,840,902'Process for the preparation of beta-hydroxyalkypicolinium salts'1998 5,672,674'Anti-stain finishing of polyamide-containing fibre materials, compositions therefor and polyamide-containing fibre materials thus finished'1997 5,441,861'Color photographic silver halide material'1995 5,372,610'Process for the after-bleaching of dyed raw cellulose using cationic compounds'1994 5,310,855'Aromatic condensation products'1994 4,988,463'Foam suppressants'1991 4,943,299'Levelling agents for disperse dyeing of polyester: ethoxylate or propoxylate of substituted phenol, emulsifier and carrier'1990 4,456,554'Ammonium compounds'1984 4,402,702'Low-dust dyestuff formulations'1983 4,385,000'Surface-active phosphonic acid esters'1983 4,369,070'Aqueous dyestuff or pigment dispersions'1983 4,295,852'Process for dyeing polyamide fibres'1981 4,280,960'Phosphonic acid esters'1981 4,279,614'Process for dyeing polyester-containing materials'1981 4,237,268'Esters of acylated aminocarboxylic acid containing compounds'1980 4,128,558'N(O,O dialkylphosphonyl alkylene) esters of oxazolidone, benzoxazolinone and dihydrooxazinone'1978 4,022,757'Dicarbamic acid diesters containing phosphorus'1977 3,998,652'Aqueous pigment dispersions'1976 3,989,772'N,N-bis-(phosphonomethyl)-acrylamides'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–2005Patents assigned to BAYER AG (25)· patent assignee history

1976–1977Based in Bergisch-Neukirchen, DT· patent location history

1978–2001Based in Leverkusen, DE· patent location history

1995Patents assigned to AGFA GEVAERT AB (1)· patent assignee history

2005Based in Gauting, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BAYER AG	25	1976–2005
AGFA GEVAERT AB	1	1995

Locations

Location	Patents	Span
Leverkusen, DE	22	1978–2001
Bergisch-Neukirchen, DT	3	1976–1977
Gauting, DE	1	2005