Inventor

Rainer Feser

Inventor

Gruenstadt, DE

Overview

1988–2001

Patent span

Chemistry

Primary field (CPC C)

Patents· 17 as inventor

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

G11Bprimary

G11BInformation storage based on relative movement between record carrier and transducer33%

C01GCompounds containing metals not covered by subclasses c01d or c01f15%

C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds15%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry8%

B22FWorking metallic powder5%

C10GCracking hydrocarbon oils5%

B82YSpecific uses or applications of nanostructures3%

C01BNon-metallic elements3%

C07CAcyclic or carbocyclic compounds3%

F16CShafts3%

PatentTitleYear

6,278,033'Catalyst and process for purifying streams of materials'2001 6,204,218'Catalyst and process for purifying streams of materials'2001 5,789,644'Preparation of acetylene and synthesis gas'1998 5,164,173'Preparation of stabilized acicular ferromagnetic chromium dioxide'1992 5,096,779'Chromium dioxide material, its preparation and magnetic recording media containing this chromium dioxide material'1992 5,094,767'Highly viscous magnetic fluids having nonmagnetic particles'1992 5,064,549'Preparation of stabilized chromium dioxide with sodium tetracarbonylferrate'1991 5,030,371'Process for preparing acicular ferromagnetic material consisting essentially of iron-containing chromium dioxide'1991 5,009,877'Stabilization of acicular ferromagnetic chromium dioxide'1991 4,960,462'Acicular, ferromagnetic metal particles essentially consisting of iron, and their preparation'1990 4,933,004'Preparation of acicular ferromagnetic metal particles of substantially iron'1990 4,913,890'Preparation of acicular .alpha.-Fe.sub.2 O.sub.3'1990 4,826,671'Preparation of acicular .alpha.-Fe.sub.2 O.sub.3'1989 4,774,072'Preparation of acicular alpha-Fe.sub.2 O.sub.3'1988 4,770,903'Preparation of cobalt-containing, acicular, magnetic iron oxides'1988 4,755,395'Preparation of acicular cobalt-containing ferrimagnetic iron oxides'1988 4,755,315'Preparation of cobalt-containing isotropic magnetic iron oxides'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–2001Patents assigned to BASF AG (17)· patent assignee history

1988–1992Based in Gruenstadt, DE· patent location history

1988–1991Based in Hessheim, DE· patent location history

1998–2001Based in Grunstadt, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BASF AG	17	1988–2001

Locations

Location	Patents	Span
Gruenstadt, DE	11	1988–1992
Grunstadt, DE	3	1998–2001
Hessheim, DE	3	1988–1991