Inventor

Gunther Teichmann

Inventor

Krefeld, DE

Overview

6→

Patents

1980–2001

Patent span

Chemistry

Primary field (CPC C)

Patents· 6 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 compounds22%

C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties22%

C09KMaterials for miscellaneous applications, not provided for elsewhere11%

C01BNon-metallic elements6%

C01GCompounds containing metals not covered by subclasses c01d or c01f6%

C04BLime, magnesia6%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium6%

C08LCompositions of macromolecular compounds6%

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

C22BProduction and refining of metals6%

PatentTitleYear

6,270,566'Process for colouring building materials'2001 5,389,137'Process for dyeing asphalt'1995 4,957,562'Chrome oxide green, a process for its preparation and its use'1990 4,631,089'Color-intensive iron oxide black pigments and process for their production'1986 4,278,791'Benzimidazolyl-2-alkane-phosphonic acids'1981 4,186,028'Fluid pigment suspensions with phosphonocarboxylic acids'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–2001Patents assigned to BAYER AG (6)· patent assignee history

1980–2001Based in Krefeld, DE· patent location history

1981Based in Krefeld-Uerdingen, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BAYER AG	6	1980–2001

Locations

Location	Patents	Span
Krefeld, DE	5	1980–2001
Krefeld-Uerdingen, DE	1	1981