Inventor

Petra Grunberg

Inventor

Frankfurt am Main, DE

Overview

1→

Patents

1997

Patent span

Chemistry

Primary field (CPC C)

Patents· 1 as inventor

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

C09Kprimary

C09KMaterials for miscellaneous applications, not provided for elsewhere50%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein50%

PatentTitleYear

5,674,559'Process for the preparation of a polymer matrix which becomes cloudy as a function of temperature'1997

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1997Patents assigned to CHEMETALL GMBH (1)· patent assignee history

1997Patents assigned to HUELS CHEMISCHE WERKE AG (1)· patent assignee history

1997Based in Frankfurt am Main, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CHEMETALL GMBH	1	1997
HUELS CHEMISCHE WERKE AG	1	1997

Locations

Location	Patents	Span
Frankfurt am Main, DE	1	1997