Inventor

Hans Schulze

Inventor

Cologne, DE

Overview

13→

Patents

1980–1998

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.

D06Pprimary

D06PDyeing or printing textiles18%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests18%

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

A01NPreservation of bodies of humans or animals or plants or parts thereof7%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium7%

C08JWorking-up7%

C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds4%

C07CAcyclic or carbocyclic compounds4%

C07DHeterocyclic compounds4%

C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties4%

PatentTitleYear

5,840,902'Process for the preparation of beta-hydroxyalkypicolinium salts'1998 5,762,651'Dustproofing agents'1998 5,171,476'Preparation of emulsions or other multiphase formulations'1992 5,053,421'Di-styrl-phenyl-triglycol ether as crystallization inhibitor'1991 4,994,089'Carrier mixture for the dyeing of polyester materials: n-alkylphthalimide and aromatic ester or ether'1991 4,943,299'Levelling agents for disperse dyeing of polyester: ethoxylate or propoxylate of substituted phenol, emulsifier and carrier'1990 4,909,853'Pigment preparations'1990 4,824,663'Biocidal macroemulsions containing polyvinyl alcohol'1989 4,456,554'Ammonium compounds'1984 4,318,832'Aqueous dispersions of epoxide compounds'1982 4,279,614'Process for dyeing polyester-containing materials'1981 4,252,531'Process for dyeing wool or nylon fibers'1981 4,186,029'Aqueous dyestuff dispersions'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–1998Patents assigned to BAYER AG (12)· patent assignee history

1980–1992Based in Cologne, DE· patent location history

1981Patents assigned to BASF AG (1)· patent assignee history

1981Based in Ludwigshafen, DE· patent location history

1989Based in Colonge, DE· patent location history

1998Based in Koln, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BAYER AG	12	1980–1998
BASF AG	1	1981

Locations

Location	Patents	Span
Cologne, DE	9	1980–1992
Koln, DE	2	1998
Colonge, DE	1	1989
Ludwigshafen, DE	1	1981