Inventor

Dolf Stockhausen

Inventor

Krefeld, DE

Overview

13→

Patents

1981–2001

Patent span

Chemistry

Primary field (CPC C)

Patents· 13 as inventor

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

C08Fprimary

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds15%

C14CChemical treatment of hides, skins or leather, e.g. tanning, impregnating, finishing15%

D06MTreatment, not provided for elsewhere in class d06, of fibres, threads, yarns, fabrics, feathers or fibrous goods made from such materials12%

C11DDetergent compositions10%

C07CAcyclic or carbocyclic compounds5%

C07DHeterocyclic compounds5%

D06LDry-cleaning, washing or bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods5%

D06NWall, floor, or like covering materials, e.g. linoleum, oilcloth, artificial leather, roofing felt, consisting of a fibrous web coated with a layer of macromolecular material5%

D06PDyeing or printing textiles5%

Y10TTechnical subjects covered by former us classification5%

PatentTitleYear

6,207,780'Interpolymers of unsaturated carboxylic acids and unsaturated sulfur acids'2001 5,837,789'Fluid-absorbing polymers, processes used in their production and their application'1998 5,830,956'Biodegradable copolymers, methods of producing them and their use'1998 5,482,636'Process for the quaternization of triethanolamine fatty acid esters and imidazolinamides and the use of the reaction mixtures in laundry softener compositions'1996 5,443,631'Process for the quaternization of triethanolamine fatty acid esters and imidazolinamides and the use of the reaction mixtures in laundry softener compositions'1995 5,026,690'Antiviral agent'1991 4,980,437'Acrylic copolymers for re-tanning'1990 4,897,225'Process for the preparation of room temperature flowable derivatives of natural fats and oils and their use'1990 4,813,968'Retanning process'1989 4,774,131'Process for the production of polyurethane-coated textile surfaces, polyurethane-coated textile surfaces and their use in the production of breathable and waterproof clothing'1988 4,631,063'Process for finish dressing minerally dressed leathers or those dressed by a combined method, using polymer dressings'1986 4,318,705'Process for improving the lightfastness of conventionally dyed leather'1982 4,256,800'Antistatic agents for coating the backing of carpets and other flat textile articles'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1982Patents assigned to STOCKHAUSEN & CIE CHEM FAB (2)· patent assignee history

1981–2001Based in Krefeld, DE· patent location history

1986–1998Patents assigned to STOCKHAUSEN CHEM FAB GMBH (8)· patent assignee history

1995–1996Patents assigned to HUELS CHEMISCHE WERKE AG (2)· patent assignee history

2001Patents assigned to ROHM & HAAS (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
STOCKHAUSEN CHEM FAB GMBH	8	1986–1998
HUELS CHEMISCHE WERKE AG	2	1995–1996
STOCKHAUSEN & CIE CHEM FAB	2	1981–1982
ROHM & HAAS	1	2001

Locations

Location	Patents	Span
Krefeld, DE	13	1981–2001