Inventor

Margarete Gruenert

Inventor

Kaarst, DE

Overview

2→

Patents

1990

Patent span

General tagging of new technological developments

Primary field (CPC Y)

Patents· 2 as inventor

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

Y10Sprimary

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests40%

A01NPreservation of bodies of humans or animals or plants or parts thereof20%

B01DSeparation20%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium20%

PatentTitleYear

4,932,994'Evaporation inhibitors'1990 4,891,154'Defoaming agents and process of defoaming'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990Patents assigned to HENKEL KGAA (2)· patent assignee history

1990Patents assigned to HOECHST AG (1)· patent assignee history

1990Based in Kaarst, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HENKEL KGAA	2	1990
HOECHST AG	1	1990

Locations

Location	Patents	Span
Kaarst, DE	2	1990