Inventor

Constanze Prengel

Inventor

Weiterstadt, DE

Overview

1993–1995

Patent span

Chemistry

Primary field (CPC C)

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 compounds14%

C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties14%

B82YSpecific uses or applications of nanostructures11%

C09DCoating compositions, e.g. paints, varnishes or lacquers11%

A61KPreparations for medical, dental or toiletry purposes7%

A61QSpecific use of cosmetics or similar toiletry preparations7%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients7%

Y10TTechnical subjects covered by former us classification7%

B41MPrinting, duplicating, marking, or copying processes4%

B42DBooks4%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1993–1994Patents assigned to MERCK PATENT GMBH (4)· patent assignee history

1993–1995Based in Weiterstadt, DE· patent location history

1994Based in Nieuw-Vennep, NL· patent location history

1994Based in Nordwijkerhout, NL· patent location history

1994Based in Noordwijikerhout, NL· patent location history

1995Patents assigned to MERCK PATENT GES MIT BESHRAENK (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MERCK PATENT GMBH	4	1993–1994
MERCK PATENT GES MIT BESHRAENK	1	1995

Locations